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Center for Drug Safety and Effectiveness

Center Scholars

Training is one of the most vital missions of our Center, and our Center Scholars represent the future leaders of the field.

Our Scholars are a group of trainees and early-career professionals whose research interests and goals align with those of the CDSE.

If you are a master's or doctoral student or a clinical fellow and you are interested in becoming a Center Scholar, please contact us.

Current Center Scholars

Banda Abdullah A Khalifa

Banda Abdallah Abubakar Khalifa, MD
Degree Program: MPH/MBA
Adviser:  Irene B. Murimi, PhD, MA
Research Interest: Pharmaceutical Comparative Effectiveness and Clinical Outcomes

Banda Abdallah is a current MPH/MBA Sommer Scholar Candidate and a physician from Ghana with six years of professional experience. He graduated from the University of Ghana School of Medicine and Dentistry with BSc in Medical Science in 2008 and MBChB in 2012. Banda worked as a general practitioner in a rural hospital for two years attending to the marginalized population. He later enlisted into the Ghana Airforce and worked at the United Nations Level 4 hospital in Ghana. He was deployed in 2015-2016  and 2016-2017 to lead Ghana Aviation's medical team in the United Nations Peacekeeping missions in Ivory Coast (UNOCI) and Mali respectively. He was nominated in early 2018 to lead a team of medical personnel to attend a United States Air Force African Partnership Flight conference on Aeromedical patient evacuation in Senegal. Before beginning the program, he was the head of the 1st Infantry of Battalion Medical Center in Accra. His interest is in pharmaceutical comparative effectiveness and clinical outcomes.

Kayte Anderson

Kayte Andersen, MSc
Degree Program: PhD (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS 
& Jodi Segal, MD, MPH
Research Focus: Real-world use, safety and effectiveness of the PCSK9 inhibitors

Kathleen (Kayte) Andersen completed a Bachelor's of Science, majoring in Pharmacology & Therapeutics, from McGill University in Montreal, QC in 2014. From 2014-2016, she worked at the Hospital for Special Surgery in New York, NY where she was the leading research coordinator for a multicenter observational cohort study. Kayte completed a Masters of Science at McGill University in August 2018, focused on drug utilization patterns in dementia using population-level primary care data. Kayte began her doctoral training at JHSPH in September 2018, where she hopes to continue working with large datasets to answer questions of drug safety, effectiveness and utilization. 

Daniah Basodan

Daniah Basodan, MBBS, FRCPC
Degree program: MPH
Adviser: Mara McAdams DeMarco, PhD, MS

Daniah Basodan is a current part-time MPH student at the Johns Hopkins Bloomberg School of Public Health. Prior to attending Hopkins, Daniah received her MBBS degree from King Abdul Aziz University in Saudi Arabia in 2009. She then completed her residency and fellowship training at McGill University at the Montreal Children’s Hospital where she obtained Royal College of Physician and Surgeons of Canada board certification in pediatrics (2015) and pediatric rheumatology (2017). Her research interest includes pharmacoepidemiology, biologic drug safety and effectiveness in pediatric populations and adherence to treatment in chronic pediatric conditions.

Jess Chasler

Jessica Chasler, PharmD, BCPS 
Degree Program: MPH
Adviser: Jodi Segal, MD, MPH
Research Focus: Pharmacoepidemiology

Jessica Chasler is a current part-time MPH student. She is a graduate of the University of Maryland School of Pharmacy and completed a two-year pharmacy residency program in Pharmacotherapy at the Johns Hopkins Hospital. She currently works as a Clinical Pharmacy Specialist in Adult Cardiology. Her interests include pharmacoepidemiology and health disparities with regards to access to medications.

Matthew Daubresse

Matthew Daubresse, MHS
Degree Program: DrPH (Epidemiology)
Adviser: Mara McAdams Demarco, PhD, MS
Research Focus: Impact of Policy Interventions on the Utilization of Prescribed Controlled Substances

Matthew Daubresse is currently a DrPH student in the Department of Epidemiology. Matthew obtained his MHS from the JHSPH Department of Health, Behavior and Society in 2010 and went on to work as a program evaluator at the Maryland Department of Health and Mental Hygiene’s Center for Chronic Disease Prevention. In 2013, Matthew returned to JHSPH to work as a data research analyst in the Center for Drug Safety and Effectiveness where he has worked extensively with large claims databases and contributed to a variety of studies examining trends in prescription drug utilization.

Xintong LiXintong Li, BSc
Degree Program: MHS (Epidemiology)
Adviser:  G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology, drug safety, effectiveness and utilization

Xintong Li is currently a MHS student in the Department of Epidemiology. Prior to Hopkins, she received her BSc in Global Health Studies at Wuhan University in China. Xintong's research interests include pharmacoepidemiology, pharmacovigilance, drug safety, effectiveness, and utilization. She is currently working on exploring the utilization and safety of biologic products with large claims databases.

Eleanor Lucas

Eleanor Lucas, BA
Degree Program: MPH
Adviser: Aditi P. Sen, PhD

Eleanor Lucas is currently a part-time MPH student at the Johns Hopkins Bloomberg School of Public Health. Eleanor is an analyst at a Health Economics Outcomes Research consulting firm and previously worked as a Research Program Coordinator at the CDSE. Her resear​ch interests include pharmacoepidemiology, pharmacoeconomics, drug development and market access, and systematic literature reviews. 

Kyungah Kim

Kyungah Kim, PharmD
Degree Program: MPH
Adviser: Ann-Margret Ervin, PhD, MPH

Kyungah is currently a part-time MPH student. Prior to Hopkins, Kyungah obtained her Doctor of Pharmacy degree at Purdue University and worked as a pharmacist in retail and hospital settings. She then worked as a researcher at a drug safety and consulting company participating in prescription-to-OTC switch safety analysis, drug benefit-risk assessment, Risk Evaluation and Mitigation Strategies assessments, and adverse event analysis to evaluate safety signals. Her areas of interest include pharmacoepidemiology, pharmacovigilance, and regulatory science.

Kimberley Lee

Kimberley Lee, MD
Degree Program: MHS (Epidemiology)
Adviser: Jodi Segal, MD, MPH
Research Focus: Pharmacoepidemiology

Kimberley Lee is currently a full time MHS student in the Department of Epidemiology. She received her medical degree from Johns Hopkins University, completed Internal Medicine Residency at Johns Hopkins Bayview and is currently a Medical Oncology fellow at the Johns Hopkins Hospital. Her research interests includes pharmacoepidemiology and disparities in utilization, effectiveness, and toxicity of medications used to treat cancer. 

Morgane Mouslim

Morgane Mouslim, DVM
Degree Program: ScM (Epidemiology)
Adviser: Jodi Segal, MD, MPH & G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology

Morgane Mouslim is a post-doctorate in the National Heart, Lung and Blood Institute (NHLBI) Pharmacoepidemiology Training Program and is currently completing a Master of Science (ScM) in epidemiology with a focus on methodology. Prior to coming to Hopkins, she received her Doctorate in Veterinary Medicine (DVM) from Michigan State University. Her current research interests focus on how formulary restrictions and reimbursement policies affect medication access and utilization.

David Procaccini

David Procaccini, PharmD, BCPS, CACP
Degree Program: MPH
Adviser: Gerard Anderson, PhD
Research Focus: Health Policy and Medication Safety in Pediatric Population

David Procaccini is currently a part-time MPH student. David is a Clinical Pharmacy Specialist for the Pediatric Intensive Care Unit, Pediatric Cardiology, and Pediatric Anticoagulation services at The Johns Hopkins Hospital. He is heavily involved with quality improvement and clinical research, specifically in the areas of anticoagulation and sedation.  He is a clinical consultant for drug companies who manufacture pediatric-specific formulations of FDA approved medications and work to standardize formularies amongst pharmacies who care for pediatric populations.  In addition, Dr. Procaccini is the pediatric representative in the Clinical Pharmacology Committee for The American Heart Association’s Council on Cardiology.  He precepts pharmacy students from around the country, and serves as a pharmacy leader and educator for physicians, pharmacists, and nurses.

Yao Qiao

Yao (Lucy) Qiao, MPH, MSc
Degree Program: PhD (Epidemiology)
Advisers: G. Caleb Alexander, MD, MS & John W. Jackson, ScD
Research Focus: Pharmacoepidemiology

Lucy is currently a PhD student in the Department of Epidemiology. Prior to Hopkins, she worked at Cancer Care Ontario (CCO) in Toronto, Canada. At CCO, she worked with the provincial drug reimbursement programs and conducted population-based studies evaluating the real-world safety and effectiveness of chemotherapy drugs funded through the New Drug Funding Program in Ontario. Lucy's research interests include pharmacoepidemiology and epidemiological methodologies that can be applied in pharmacoepidemiology research. 

Emaan Rashidi

Emaan Rashidi, BA
Degree Program: MHS (Epidemiology)
Adviser: Stephan Ehrhardt, MD
Research Focus: Pharmacoepidemiology & Psychiatric Epidemiology

Emaan is currently an MHS student in the Department of Epidemiology concentrating on Clinical Trials and Evidence Synthesis. She completed her Bachelor of Arts degree in Public Health at the University of California, Berkeley in 2019. Before coming to Hopkins, Emaan worked for the California Department of Public Health where she developed a case classification algorithm in SAS to count Chronic Hepatitis B Cases and assessed the timeliness of post-vaccination serologic testing in infants enrolled in the Perinatal Hepatitis B Program. Her research interests include pharmacoepidemiology, psychiatric epidemiology, drug safety, and drug utilization. 

Ashton Shaffer

Ashton Shaffer
Degree Program: MD-PhD (Epidemiology)
Adviser: Mara McAdams Demarco, PhD, MS
Research Focus: HIV+ Liver Transplant Candidates and Recipients

Ashton Shaffer is currently a PhD student in Epidemiology and in the MD-PhD program. Her research is in the epidemiology of organ transplant and focuses on donors and recipients with infections like HIV and hepatitis C. One of the primary datasets she uses comes from an IMS Health linkage, and all of her studies include complex drug regimens for the treatment of HIV, hepatitis C, and/or transplant-related immunosuppression.

Chinenye Ugoji

Chinenye Ugoji, BPharm, MPH
Degree Program: PhD (Epidemiology)
Advisers: Elizabeth Platz, ScD & Lorraine Dean, ScD
Research Focus: Pharmacoepidemiology, Cancer, HIV, Outcomes research

Chinenye Ugoji is currently a PhD student in the Department of Epidemiology. She obtained her MPH degree in Epidemiology and Biostatistics from the Johns Hopkins School of Public Health and her Pharmacy degree from University of Benin, Nigeria. Prior to Hopkins, she worked at the Institute of Human Virology, University of Maryland where she led the development and implementation of Nigeria’s national Healthcare Quality management program (NigeriaQual) and first National Quality Improvement collaborative. She has done substantial work in developing, implementing and evaluating HIV programs, including interventions to improve antiretroviral treatment adherence and retention in care. Her current research interests lie at the intersection of drug utilization, drug safety, Quality of care and patient-centered outcomes in HIV and Cancer. 

Siddhi Umarje

Siddhi Umarje, PharmD
Degree Program: ScM
Adviser: Catherine Sutcliffe, PhD

Siddhi Umarje is currently a ScM student in the Department of Epidemiology, focused on cardiovascular and clinical epidemiology. Siddhi obtained her Doctor of Pharmacy from India in 2018. In 2017, Siddhi completed a thesis titled ‘Statin therapy: Risk assessment, Dosing and Patient Adherence.’ This study was presented at an international conference and has won the first prize for ‘Best Poster Presentation’ in February 2018. She was a full-time intern clinical pharmacist at Bharati Hospital & Research Center in India from May 2017 to May 2018. She was actively involved in activities such as pharmacotherapy management, identification, assessment and management of adverse drug reactions, drug-drug reactions and medication errors. Her research interests include comparative safety and effectiveness of drugs, adverse drug reactions and pharmacovigilance.

Jiajun Wen

Jiajun Wen, MD, MPH
Degree Program: ScD (Epidemiology)
Adviser: Janet Holbrook, PhD, MPH, MS
Research Focus: Pharmacoepidemiology and Clinical Trials

Jiajun Wen is currently a ScD student in the Department of Epidemiology concentrating in Clinical Trials and Evidence Synthesis. He obtained his MD from Shanghai Jiao Tong University, China, and his MPH from University of Nebraska Medical Center. His areas of interest include utilization and safety of cancer immune checkpoint inhibitors, topics in systematic review, and generalizability of trial results. He has substantial experience with systematic review and meta-analysis, claims data, and clinical trial data.

Hanzhe Zhang

Hanzhe Zhang
Degree Program: MHS (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology

Hanzhe Zhang is currently a MHS student in the Department of Epidemiology, concentrating in General Epidemiology and Methodology. Prior to JHSPH, he received his BA in Public Health Studies at JHU. He previously worked on survival analysis for an active surveillance project involving prostate cancer patients, which monitors low grade cancer patients as an alternative to invasive treatment. His areas of interest include pharmacoepidemiology, pharmacovigilance, and pharmacoeconomics. 

Graduated Scholars

Enoch Abbey

Enoch Abbey, MD, MPH
Degree Program: MPH
Adviser: John Jackson, ScD
Research Focus: Pharmacoepidemiology

Enoch Abbey graduated with a MPH from JHSPH. Prior to matriculation at Hopkins he had 4 years of experience as an Emergency Room Physician. Dr. Abbey graduated from the University of Ghana School of Medicine and Dentistry. He is a member of the Global Alliance of Perioperative Professionals and International Society of Pharmacoepidemiology students. Current research interests include; affordable medicines for the Low and Middle Income countries, the Health and Economic effects of counterfeit drugs and Emergency Healthcare.

Ekta Agarwal

Ekta Agarwal, MPH
Degree Program: MPH
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Drug Safety and Adherence

Ekta Agarwal graduated with a MPH from JHSPH. Ekta is a physician and has a diverse experience working as health care personnel in domestic and international settings. Prior to coming to Hopkins she worked with the New Jersey Middlesex Regional Educational Services Commission for children with disabilities and ASD. Ekta interned at the Kennedy Krieger Institute for a Data Resource Mapping Project, a joint venture of the DHMH and MCDD. At the school, her work focused on finding an association between adherence to NOACs and GI bleeding in patients with Atrial Fibrillation. Her interests included Pharmacovigilance and Post- Marketing drug safety. She also pursued a Certificate in Risk Sciences and Public Policy and Good Clinical Practice (GCP).

Samuel Ayeh

Samuel Kwakye Ayeh, MBChB (MD), MPH
Degree Program: MPH
Adviser: Jonathan Golub, PhD
Research Focus: Risk factors associated with positive latent tuberculosis test in pregnant women

Samuel Kwakye Ayeh graduated with a MPH from JHSPH with a concentration in Epidemiology and Biostatistics. Before beginning at JHSPH, he completed his medical training in the University of Ghana School of Medicine and Dentistry in February 2012, followed by two years of internship and four years working as a medical officer. His work as a medical officer was focused on primary care and obstetrics and gynecological surgeries.

Sheriza Baksh

Sheriza Baksh, PhD, MPH
Degree Program: PhD (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS & Stephen Ehrhardt, MD
Research Focus: Pharmacoepidemiology

Sheriza Baksh received a PhD from the Department of Epidemiology. Prior to Hopkins, Sheriza worked at the U.S. Food and Drug Administration, where she conducted research on drug safety for generic antiepileptic drugs, nanotechnology drug products, and parenteral drugs. Through this research, she worked with claims data, adverse events reports, and clinical trial data. After four years at the FDA, Sheriza joined the Department of Epidemiology as a PhD student concentrating in Clinical Trials and Evidence Synthesis with a Certificate in Risk Sciences and Public Policy. Her interests lie at the intersection of regulatory policy and pharmacoepidemiology. 

Chelsea Canaan

Chelsea Canan, MPH, PhD
Degree Program: PhD (Epidemiology)
Adviser: Bryan Lau, PhD
Research Focus: Epidemiologic Methods; Prescription Opioid Misuse

Chelsea Canan received a PhD from the Department of Epidemiology as a pre-doctoral fellow in the HIV Training Program. Prior to attending JHSPH, she worked in clinical research and earned a Master of Public Health with a concentration in biostatistics. She has an interest in pharmacoepidemiology and drug safety and is conducting dissertation research on the use and misuse of prescription opioids among HIV-infected individuals in the United States.

Lian-Yu Chen

Lian-Yu Chen, MD, PhD
Degree Program: PhD (Mental Health)
Adviser: Ramin Mojtabai, MD, PhD
Research Focus: Substance Use Disorders, Service Utilization and Psychiatric Comorbidities

Lian-Yu Chen received a PhD from the Department of Mental Health. She received her MD from National Chung Kung University in Taiwan in 2006 and received psychiatric residency training in Taipei City Psychiatric Center from 2006-2010. She earned Taiwanese Board Certification in Psychiatry in 2010. After her residency training, she joined JHSPH to pursue her PhD. While in training at the school, Dr. Chen's research interests focused on evaluating the service utilization among those with substance use disorder (SUD) and psychiatric comorbidities. Additionally, she investigated prescription stimulant abuse (Adderall®) in the United States. She has won several awards and honors including the Sommer Scholarship in 2012, NIDA Women & Sex/Gender Junior Investigator Travel Award in 2012, and Clinical Excellence Award in Taipei City Psychiatric Center in 2009.

Francine Chingcuanco

Francine Chingcuanco, MHS
Degree Program: MHS (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Utilization of Generic Medicines

Francine graduated with a MHS in the Department of Epidemiology. Prior to attending JHSPH, she completed a Bachelors of Science at the University of Toronto, specializing in Pharmacology. Her broad research interests involved prescription drug abuse and the utilization of generic medicines. She has recently completed work on a systematic review comparing biosimilars to their innovator biologics.

Stacy Elder

Stacy Elder Dalpoas, PharmD, MPH, BCPS
Degree Program: MPH
Adviser: Jodi Segal, MD, MPH

Stacy Elder received a MPH from JHSPH. Prior to Hopkins, Stacy graduated from the University of North Carolina Eshelman School of Pharmacy and completed a two-year Pharmacotherapy Residency at The Johns Hopkins Hospital. After spending some time in academia, Stacy returned to the Johns Hopkins Hospital as a Clinical Pharmacy Specialist and recently transitioned to the Assistant Director of Decentralized and Clinical Pharmacy Services at The Johns Hopkins Bayview Medical Center. Stacy's  interests include population health and pharmacoepidemiology.

Mindi DePaola

Mindi DePaola, MSPH
Degree Program: MSPH (International Health)
Adviser: Victoria B. Chou, PhD, MS
Research Focus: Drug Utilization and Access in Underserved Populations

Mindi received a MSPH in the Department of International Health. Prior to attending Hopkins, she received her BS in Biology at the University of Minnesota, and worked as a health data analyst for International Medical Corps on the Ebola virus team before moving to Baltimore. Her areas of interest include pharmacoepidemiology and drug utilization and access among underserved populations and LMICs. 

Leah Efird

Leigh Efird, PharmD, MPH, BCPS
Degree Program: MPH
Adviser: Sherita Hill Golden, MD, MHS
Research Focus: Hospital Drug Utilization

Leigh Efird received a MPH from the Johns Hopkins Bloomberg School of Public Health, Doctor of Pharmacy degree from the University of North Carolina at Chapel Hill and completed a Pharmacy Practice residency at Virginia Commonwealth University and a PGY2 Internal Medicine residency at Grady Health System. She currently practices in Internal Medicine at The Johns Hopkins Hospital. Through her work in direct patient care she has the opportunity to influence medication use in the acute care setting which is heavily focused on exacerbations of chronic disease states. She continues to expand her focus of improving medication adherence during the transition of patients back to the outpatient setting through involvement in patient education of high risk medications, medication reconciliation, and other transitional services.

Ijeamaka Ezebilo

Ijeamaka Ezebilo, MD, MPH
Degree Program: MPH
Adviser:  Jodi Segal, MD, MPH
Research Focus: Pharmacoepidemiology

Ijeamaka Ezebilo received a MPH from JHSPH. She received her medical degree from Kwame Nkrumah University of Science and Technology Ghana after which she worked as a physician at the Komfo Anokye Teaching Hospital and Ghana Police Hospital. Ijeamaka’s interests lie in pharmacoepidemiology, drug safety and effectiveness and clinical research.

Kevin Fain

Kevin Fain, DrPH, JD, MPH
Degree Program: DrPH (Epidemiology)
Adviser: Carlos Castillo-Salgado, MD, DrPH, JD
Research Focus: Safety of Opioid Use in the Elderly

Kevin Fain graduated with a DrPH in the Department of Epidemiology. His research examined the application of law, policy, and epidemiologic methods for FDA’s regulation of prescription drug safety. He currently is researching FDA’s implementation of post-marketing drug safety authorities, including Risk Evaluation and Mitigation Strategies (REMS), and the health effects from opioid prescribing in elderly adults. Kevin previously worked as an attorney at FDA for 15 years, where he litigated cases for food and drug safety and counseled the agency on human and animal drug legal issues. He earned his MPH and Certificate in Risk Sciences and Public Policy at Johns Hopkins Bloomberg School of Public Health in 2011.

Haley Gibbs

Haley Gibbs, PharmD, MPH, BCPS
Degree Program: MPH
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Therapeutic Drug Monitoring

Haley Gibbs received a MPH from Johns Hopkins, a Doctor of Pharmacy at Auburn University and completed a Pharmacy Practice residency at University of Illinois at Chicago and a Critical Care PGY2 residency at the Medical University of South Carolina. She now practices clinical pharmacy at The Johns Hopkins Hospital in the Neurocritical Care Unit. As a pharmacist working in an academic medical center, she has a unique opportunity to participate in the optimization of medication therapy for critically ill patients, as drug safety and efficacy are high priorities in patient care. In addition, she has a particular interest in resource utilization, especially as it relates to medication therapy and therapeutic drug monitoring. With rising health care costs, resource utilization is becoming an important area for research for public health.

Gillian Gresham

Gillian Gresham, MSc, PhD
Degree Program: PhD (Epidemiology)
Adviser: Kay Dickersin, PhD
Research Focus: Clinical Trials and Evidence Synthesis

Gillian Gresham received a PhD from the Department of Epidemiology. She holds a master’s degree in epidemiology and a bachelor’s degree in biochemistry from the University of Ottawa, Canada. Her broad interests in comparative effectiveness research, randomized clinical trials, systematic reviews and meta-analyses emerge from her past work and research experiences in these areas. During her doctoral training, she has focused on evidence synthesis, patient-centered outcomes research, the analysis of adverse events in clinical trials and benefit-harm assessment methods. She was also an active teaching assistant in the clinical trials course series offered at JHSPH.

Mengdong He

Mengdong He, MHS
Degree Program: MHS (Epidemiology)
Adviser: Edgar R. Miller, MD, PhD
Research Focus: Drug Utilization and Effects

Mengdong He graduated with a MHS from the Department of Epidemiology. Mengdong has a bachelor of medicine degree in traditional Chinese medicine with 5-year theoretical and clinical training. During her first year study at Hopkins, she developed an interest in the research of drug use as well as its beneficial and adverse effects in post-market settings. Mengdong investigated the impact of opioids use on the adherence of unrelated chronic condition medication and explored the health effects of hormone replacement therapy.

Catherine Hwang

Catherine Hwang, MSPH
Degree Program: MSPH (International Health)
Adviser: G. Caleb Alexander, MD, MS
Research Focus:Prescription Drug Utilization and Abuse-Deterrent Formulations

Catherine Hwang received a MSPH from the Department of International Health. With past research experience in chemistry, pharmacology, and clinical trials, Catherine explored the policy and regulatory aspects surrounding prescription drug utilization during her training. Her current work examines the extent to which abuse-deterrent opioid formulations will realistically shift the landscape of the prescription drug abuse epidemic in the United States. The past summer, she was an Epi Scholar at the Los Angeles County Department of Public Health, where she identified trends, patterns, and disparities in controlled substance prescriptions in order to better understand this epidemic.

Geetha Iyer

Geetha Iyer, MBBS, MD, ScM
Degree Program: ScM (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Drug Utilization and Pharmacovigilance

Geetha received a ScM from the Department of Epidemiology, a Bachelor of Medicine and Surgery degree from India with 5 years theoretical and clinical training, followed by MD in Pharmacology (3 years). She completed her dissertation on pharmacologic management of respiratory infections in pediatric patients. She worked for two years as an Assistant Professor in a medical college training undergraduate medical students in Pharmacology. Geetha's research interests include post marketing effectiveness and safety of drugs as well as utilization of drugs. In the course of her MD dissertation, she developed interest in pharmaco-epidemiological studies. Geetha would like to combine the knowledge of her training as a physician with that of epidemiology gained at Johns Hopkins to best answer questions regarding drug effectiveness and safety.

Shiyin Jiao

Shiyin Jiao, MHS
Degree Program: MHS (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Quality of Pharmaceutical Care, Patient Outcomes, Structure of Clinical Practice

Shiyin Jiao received a MHS in General Epidemiology and Methodology, with a focus on Pharmacoepidemiology and Drug Safety. Prior to joining JHSPH, she graduated from Emory University Magna Cum Laude with a major in Biology and a minor in Mathematics. She worked as a research trainee at the Center for Surgery and Public Health at Brigham and Women’s Hospital in Boston, conducting extensive literature review and data analysis on a project investigating the association between hospital teaching status and patient outcomes. Through a year of intensive coursework training here and a broad spectrum of past internship experiences in labs, hospitals and pharmaceutical companies including J&J and Pfizer, she has developed a keen interest in patient-centered outcomes, comparative effectiveness research, medication safety and policy implications. For her dissertation, she examined the quality of pharmaceutical care involving different professional disciplines using a nationally representative dataset.

Taruja Karmarkar

Taruja Karmarkar, MHS, PhD
Degree Program: PhD (Health Policy and Management)
Adviser: Darrel J. Gaskin, PhD
Research Focus: Pharmacoeconomics, Decision Modeling, Pharmaceutical Policy, and Patient Outcomes Research

Taruja Karmarkar received a PhD in the Health Economics and Policy program in the Department of Health Policy and Management. She concentrated in Economic Evaluation with an interest in decision modeling methods, pharmacoeconomics, and the implications of these methods on policy. Taruja holds an MHS degree in Health Economics, from JHSPH, with a concentration in Comparative Effectiveness and Outcomes Research. She also completed the certificate in Quality, Patient Safety & Outcomes Research while working on a project with physicians in the Outcomes After Critical Illness and Surgery Group (OACIS). Taruja serves as a Reviewer for the Cost-Effectiveness Analysis Registry at the Center for Evaluation and Risk in Health at the Tufts Medical Center. Prior to coming to JHSPH, she received a BA in Economics from New York University.

Christopher Kaufmann

Christopher Kaufmann, PhD, MHS
Degree Program: PhD (Mental Health)
Advisers: Ramin Mojtabai, MD, PhD & Adam Spira, PhD
Research Focus: Sedative-Hypnotic Use Among the Elderly

Chris Kaufmann received a PhD in the Department of Mental Health. He was a pre-doctoral fellow on the Drug Dependence Epidemiology Training Program, a T32 training grant sponsored by the National Institute on Drug Abuse. Chris’s research interests include trends in the use of psychiatric medications in older adults, the potential adverse health outcomes and health service utilization associated with the use of these medications, the impact of national and regulatory policies on the utilization and prescribing of these medications, and whether these policies can minimize the occurrence of adverse health outcomes in this population. His dissertation focused on the use of sedative-hypnotic medications in older adults, and examined how the exclusion of benzodiazepines from reimbursement after the implementation of Medicare Part D, as well as the recent introduction of non-benzodiazepine sleep-aids (e.g. zolpidem, zaleplon, eszopiclone), has impacted prescribing trends to older adults. He also examined the impact of these events on the occurrence of adverse health outcomes and health service utilization among elderly patients.

Shelby Kemper

Shelby Kemper, PharmD, MPH
Degree Program: MPH
Adviser: Jodi Segal, MD, MPH
Research Focus: Quality, Access, Availability and Utilization of Pharmaceuticals in Low and Middle Income Countries

Shelby Kemper received a MPH from Johns Hopkins. Shelby is pharmacist with experience in retail, clinical and hospice care in the public and private sector. She was most recently the Pharmacy Director of a hospice pharmacy and focused on end-of-life care and pain management. Prior to attending Hopkins, Shelby founded and directed a non-profit, CU Peru, in the Peruvian Amazon that educates rural community health care workers with the focus of decreasing under-5 child mortality. She is interested in improving access and utilization of pharmaceuticals in low and middle oncome countries and the factors that influence these disparities.

Zaina Kiragu

Zaina Kiragu, MPharm, MPH
Degree Program: MPH
Adviser: Alain K. Koffi, MD, PhD

Zaina Kiragu received a MPH from JHSPH. Prior to attending Hopkins, Zaina graduated from the University of Manchester School of Pharmacy with a Master of Pharmacy and undertook her pre-registration pharmacy training with AstraZeneca UK and University Hospitals of South Manchester (UHSM). Zaina most recently worked in a Kenyan pharmaceutical company based in Nairobi and has practice experience in retail and hospital pharmacy settings in Kenya as well. Zaina's interests lie in pharmacoeconomics and pharmaceutical systems strengthening in low and middle-income countries, with a view to improve drug access, utilization and management.  

Yi-Chen Liu

Yi-Chen Liu, MHS
Degree Program: MHS (Epidemiology)
Adviser: Mara McAdams Demarco, PhD, MS
Research Focus: Pharmacoepidemiology

Yi-Chen Liu received a MHS in the Department of Epidemiology. Prior to Hopkins, she completed a Bachelors of Science at the National Taiwan University, specializing in Pharmacy. Yi-Chen’s research interests include comparative effectiveness research, pharmacovigilance and patient-oriented outcomes research. She investigated medication use in adults with end-stage renal disease.

Nune Makarova

Nune Makarova, MD, MPH
Degree Program: MPH
Adviser: Debra Roter, DrPH, Professor

Nune Makarova received a MPH from Johns Hopkins. Prior to completing her MPH, Nune obtained her MD degree from the Moscow Medical Academy in 2006. After completing the residency, she worked as an endocrinologist for 2 years.  Before applying for the MPH Nune worked as a Regulatory Affairs head for Novartis Pharma and Oncology Russia. In parallel, she was involved in the successful national legislative lobbying activities, which were aimed to improve the safety of Russian drug regulation and provide patients with greater access to biologics and orphan drugs. Her areas of interest include patient-provider communication, pharmacoepidemiology,  and pharmacoeconomics. 

Omar Mansour

Omar Mansour, MHS
Degree Program: MHS (Epidemiology)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology, Drug Utilization

Omar obtained a MHS in the Department of Epidemiology. Prior to JHSPH, he graduated from Macalester College in St, Paul, MN with a major in Biology and a minor in Statistics. Omar’s research interests include pharmacovigilance, the use of specialty drugs, comparative effectiveness research, and epidemiological methods in pharmacological research. He is currently working on quantifying inpatient utilization trends for high cost pharmaceutical products and assessing factors associated with hospital’s administration of high cost medications.

Sathiya Priya Marimuthu

Sathiya Priya Marimuthu, MBBS, MHS
Degree Program: MHS 
Advisers: Brent Petty, MD & Jodi Segal, MD, MPH
Research Focus: Drug Safety and Pharmacoepidemiology

Sathiya Priya Marimuthu was a post doctoral fellow in clinical pharmacology and pharmacoepidemiology who completed her MHS in the Department of Epidemiology. She completed her medical degree in India and has clinical and research experience. Sathiya was involved in cancer epidemiology projects at Roswell Park Cancer Institute, Buffalo, NY. Before coming to Hopkins, she worked as a drug safety and pharmacovigilance specialist. Her research interests includes medication safety in patients with multiple chronic conditions, post-marketing surveillance, and pharmacoepidemiology.


Kathryn Marwitz

Kathryn Marwitz, PharmD, MPH
Degree Program: MPH 
Adviser: Jodi Segal, MD, MPH
Research Focus: Pharmacoepidemiology and Pharmaceutical Policy

Kathryn completed a MPH with focuses in epidemiology, pharmacoepidemiology, and health policy. Prior to attending JHSPH, Kathryn graduated from Drake University in Des Moines, Iowa with her doctorate of pharmacy and a concentration in global and comparative public health. Her research and academic interests lie within pharmacoepidemiology, pharmacovigilance, and pharmaceutical policy that influence access to and cost of prescription drugs.

Alexander Moran

Alexander Moran, MSPH
Degree Program: MSPH (Department of International Health)
Adviser: Lawrence Moulton, PhD
Research Focus: Drug Utilization and Adherence

Alex completed a Masters in the Department of International Health. Prior to attending Hopkins, he studied chemistry at the George Washington University in Washington, D.C. and has worked in the pharmaceutical industry in analytical development and in regulatory affairs. His main interests focus on drug utilization and adherence, specifically within HIV pre-exposure prophylaxis (PrEP) and antiretroviral therapies for treating HIV. Of additional interest are the structural and social factors affecting uptake and adherence to these regimens.

Remington Nevin

Remington Nevin, DrPH, MD, MPH
Postdoctoral Fellow (Occupational Medicine Residency Program, Department of Environmental Health Sciences)
Adviser: Francesca Litow, MD, MPH
Research focus: Occupational Drug Safety and Pharmacovigilance

Remington Nevin received his MD from the Uniformed Services University School of Medicine in 2002 and his MPH from Johns Hopkins in 2004. He returned to Johns Hopkins to earn his DrPH in 2016 following a career in the U.S. Army where he served as a Preventive Medicine physician, including on overseas tours in Afghanistan and Africa. During his military career, Remington's research into the adverse neuropsychiatric effects of the U.S. Army-developed antimalarial drug mefloquine, and his work to raise awareness of its widespread prescribing among deployed personnel with mental health contraindications, contributed to the U.S. military’s decision to deprioritize its use as a drug of “last resort,” and directly informed recent FDA-approved label changes which included a new boxed warning of potential long-term mental health effects. Remington testified to the U.S. Senate on these effects confounding diagnosis and management in military service members and veterans of neuropsychiatric disorders including PTSD and TBI. In 2014 he was awarded the Johns Hopkins University Alumni Association Outstanding Recent Graduate award for his research and advocacy work in this area. While a resident in Occupational Medicine, Remington continues his research with a focus on issues in drug safety and pharmacovigilance in occupational settings.

Richard Nudotor

Richard Dunku Nudotor, MB CHB, MPH
Degree Program: MPH
Adviser: Mara McAdams DeMarco, PhD, MS
Research Focus: Clinical Trials, Pharmacoepidemiology and Drug Safety, Surgical Outcomes in Pancreatic and Bariatric Surgery

Richard Nudotor graduated with a MPH from JHSPH. Prior to beginning at Hopkins, he graduated from the University of Ghana School of Medicine and Dentistry with Bsc. Medical Science in 2010 and a Bachelor of Medicine and Surgery in 2014. Richard has 4 years of professional experience as a general practitioner at Koforidua Regional Hospital where he was a medical officer at the HAART clinic working with people living with HIV/AIDS. He is pursuing certificates in Clinical Trials and also in Pharmacoepidemiology and Drug Safety. He is involved in Surgical Outcome Mentorship at the Department of Surgery at Johns Hopkins Hospital.

Ken Ogasawara

Ken Ogasawara, PhD, MPH
Degree Program: MPH
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology, Regulatory Science

Ken Ogasawara graduated with a Masters in Public Health from the Johns Hopkins Bloomberg School of Public Health.  Prior to JHSPH, he received a Ph.D. in Pharmaceutical Sciences from Kyoto University, Japan and worked in a pharmaceutical industry.  He has background in pharmacokinetics, pharmacogenetics and molecular biology and an interest in pharmacoepidemiology.

Guarvik ML Nayyar

Gaurvika ML Nayyar, MPH, MBA
Degree Program: MPH & MBA
Adviser: David Peters, MD, DrPH, MPH
Research focus: Pharmaceutical Quality, Emerging Markets, Health Outcomes, and Access

Gaurvika Nayyar received an MPH/MBA at Johns Hopkins Bloomberg School of Public Health & Carey Business School. Prior to Hopkins, Gaurvika worked at the National Institutes of Health conducting research on antimalarial drug resistance, pharmaceutical regulation policy, malnutrition, and counterfeiting in low and middle income countries. Her research to better understand the extent of poor quality antimalarials in South East Asia & Sub-Saharan Africa has been widely covered by BBC, NYT, Reuters, CNN & Others. Most recently, Gaurvika has been a summer associate at Johnson & Johnson’s Global Commercial Strategy Operations for pharmaceutical products and an intern at the Bill & Melinda Gates Foundation. While in training at the school, she worked on a wide range of products & programs across disease areas with a special focus in emerging markets.

Kevin Riggs

Kevin Riggs, MD, MPH
Adviser: G. Caleb Alexander, MD, MS
Research focus: Prescription Drug Costs

Kevin Riggs is a research fellow in the Johns Hopkins Division of General Internal Medicine, and Hecht-Levi Fellow at the Johns Hopkins Berman Institute of Bioethics. His research interests include clinical ethics, and the ethics and effectiveness of cost-containment strategies. He is currently researching the effect of drug coupons on costs and adherence. He earned his Master of Public Health from the University of North Carolina at Chapel Hill, and completed his medical degree and internal medicine residency at Duke University. 

Cindy Sagoe

Cindy Sagoe, BPharm, MPH
Degree Program: MPH

Adviser: Irene Murimi, PhD

Cindy obtained a MPH from Johns Hopkins. Prior to attending Hopkins, she received her Bachelor of Pharmacy Degree from Ahmadu Bello University Zaria, and worked for over six years in various roles in hospital pharmacy and in the Pharmaceutical Industry in Sub-Saharan Africa with a major focus on improving access to innovative medicines. Her areas of interest include pharmacoepidemiology, and improving access among underserved populations and low and middle-income countries.

Marissa Seamans

Marissa Seamans, PhD, MSPH
Degree Program: Postdoctoral Fellow (Mental Health)
Adviser: Elizabeth Stuart, PhD
Research Focus: Household Patterns of Prescription Medication Use

Marissa Seamans was a post-doctoral fellow in the Department of Mental Health. Marissa received her PhD in Epidemiology from the University of North Carolina at Chapel Hill in 2017 and joined the Drug Dependence Epidemiology Training Program as a postdoctoral fellow in the JHSPH Department of Mental Health. Her work focuses on using large healthcare databases to explore patterns of prescription opioid use and polypharmacy within social networks and applying methods for causal inference to address spillover effects of pharmaceutical treatments.

Alex Secora

Alex Secora, MPH, PhD
Degree Program: PhD (Epidemiology)
Advisers: G. Caleb Alexander, MD, MS & Josef Coresh, MD
Research Focus: Pharmacoepidemiology

Alex Secora completed a PhD in Epidemiology and was a trainee in the Cardiovascular Epidemiology Training Program. Prior to Hopkins, Alex worked in the Division of Epidemiology of the U.S. Food and Drug Administration's (FDA) Office of Surveillance and Epidemiology. At FDA, Alex conducted postmarket drug safety evaluations, reviewed pharmacoepidemiology protocols and study data, and developed methodological frameworks for studying various drug safety outcomes. Alex still holds a part-time position at FDA. Alex's broad research interests include pharmacoepidemiology, epidemiological and biostatistical methods development in the context of pharmacoepidemiology, pharmacology, and electronic health care databases.

Mariana Socal

Mariana Socal, MD, MSc, MPP, PhD
Degree Program: PhD (Department of Mental Health)
Adviser: Antonio Trujillo, MPP, PhD
Research focus: Pharmaceutical Access and Utilization in Low- and Middle-Income Countries

Mariana Socal received her PhD from the Department of International Health. Mariana is a Neurologist with clinical experience in the public and private health care systems in Brazil, where she used to work with the public health administration on evidence-based decision-making for the provision of medicines. During that period she also collaborated with local state attorneys in responding to legal claims for access to medicines. Since then Mariana has become interested in researching ways to improve access and utilization of medicines for persons with chronic diseases in low- and middle-income countries. After graduating with a Master’s in Public Policy from Princeton University, Mariana joined the Doctoral Program in Health Systems at the Department of International Health in the Johns Hopkins Bloomberg School of Public Health.

Jingwen Tan

Jingwen Tan, PhD, ScM
Advisers: G. Caleb Alexander, MD, MS & Jodi B. Segal, MD, MPH
Research focus: Epidemiology of Drug-Induced Morbidity and Mortality

Jingwen Tan received a ScM from the Department of Epidemiology and obtained the Certificates in Risk Sciences and Public Policy, and Public Health Informatics. After graduating with a BS degree in Molecular Cell & Developmental Biology from UCLA, Jingwen conducted laboratory surveillance for respiratory viral pathogens during the 2009 H1N1 influenza pandemic at the Maryland Department of Health and Mental Hygiene, before attending JHSPH. She currently interns at the Office of Surveillance and Epidemiology in the Food and Drug Administration where she helps coordinate the post-marketing surveillance pilot program for the Sentinel Initiative. She is interested in the epidemiology of drug-induced morbidity and mortality using electronic databases.

Sangeeta Tandon

Sangeeta Tandon, PharmD, MPH
Degree Program: MPH
Adviser: Andrea Ruff, MD
Research Focus: Pharmaceutical Quality, Access, and Affordability in Low Income Countries

Sangeeta Tandon received a MPH from Johns Hopkins. Currently she serves as an Operations Manager in the Critical Care Pharmacy at the Johns Hopkins Hospital where she participates in optimizing the operational process in the hospital as well as has a clinical component in optimizing drug therapy. Prior to Hopkins, Sangeeta was a Fulbright scholar conducting research in sub-Saharan Africa looking at measuring adherence in low income countries, teaching a health policy course on drug regulation, and conducting pharmacologic monitoring research of nontraditional medications. Her interests are in effectiveness research and looks to find ways to improve pharmaceutical access abroad.

Sarah Tanveer

Sarah Tanveer, MA
Degree Program: MA (Public Health Biology)
Advisers: Barry Zirkin, PhD & G. Caleb Alexander, MD, MS
Research Focus: Migraine/Headache disorders, Evidence Synthesis, Comparative Effectiveness Research, Pharmacoepidemiology

Sarah Tanveer graduated from the interdisciplinary Master of Arts in Public Health Biology program. She completed her undergraduate degree at University of Maryland, College Park. Prior to enrolling into the Pharmacoepidemiology and Drug Safety Certificate program, Sarah conducted research on neurological disorders and was a research assistant at Georgetown University (PI: Dr. Oyegbile). Her research and academic interests lie within evidence based medicine, comparative effectiveness research, implementation science, pharmacoepidemiology, and evidence synthesis. Her thesis paper focused on the biological underpinnings of chronic migraine.

Carolyn Tieu

Carolyn Tieu, PharmD, MPH
Degree Program: MPH
Adviser: G. Caleb Alexander, MD, MS
Research focus: Pharmacoepidemiology, Comparative Effectiveness Research, Patient Outcomes Research 

Carolyn Tieu graduated with a MPH with a concentration in epidemiology and biostatistics from Johns Hopkins. Prior to Hopkins, Carolyn received her Doctor of Pharmacy degree from Massachusetts College of Pharmacy and Health Sciences and has a robust range of clinical experiences in both hospital institutions and home infusion. Her areas of research interests include pharmacoepidemiology, comparative effectiveness research, and patient outcomes research.

Phuong Tran

Phuong Tran, PharmD, MPH
Degree Program: MPH
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology, Cancer Epidemiology, Genetics and Epigenetics

Phuong Tran graduated with a MPH from Johns Hopkins. She received MPH Yang and Hume Scholarships and Vietnam Education Foundation (VEF) Fellowship, Cohort 2016. Phuong Tran got her PharmD degree in Viet Nam. Her thesis was about a preclinical phase of an anti-epilepsy drug development on mouse models. After that, she worked 2 years in pharmaceutical industry as a medical representative and marketer in multinational companies such as Sanofi-Aventis and Laboratoire Aguettant. She is interested in drug safety, effects of genetic variation on drug effects and epidemiology of cancer genetics and epigenetics.

Shilpa Viswanathan

Shilpa Viswanathan, PhD, MS, BPharm
Degree Program: PhD (Epidemiology)
Adviser: Lisa P. Jacobson, ScD
Research Focus: Effects of Concomitant Medication Use on Adherence to Highly Active Antiretroviral Therapy (HAART)

Shilpa Viswanathan received a PhD from the Department of Epidemiology. After interning at Novartis and UNICEF, Shilpa earned an MS in Pharmacy Administration, then worked as a health outcomes analyst for two years before joining Johns Hopkins School of Public Health. As a doctoral student, Shilpa’s interests include post-marketing drug safety and effectiveness, the epidemiology and treatment of autoimmune disorders, and pediatric health care and access to essential medicines in developing countries. Her doctoral dissertation uses methods from Pharmacoepidemiology to answer the question of optimal adherence to HAART in the current era of HIV treatment.

Yunwen Xu

Yunwen Xu, MHS
Degree Program: MHS
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoepidemiology, Drug Utilization, Outcomes Research

Yunwen Xu obtained a MHS in General Epidemiology and Methodology at Johns Hopkins. Prior to Hopkins, she received a five-year training in preventive medicine, and got her bachelor's degree from Fudan University in China. She has had rich working experiences serving in a variety of settings, including research institutions, hospitals, pharmaceutical companies, and the Center of Disease Control in Shanghai. Her areas of interest include pharmacoepidemiology, drug utilization and outcomes research.

Jeffrey Yu

Jeffrey Yu, MHS
Degree Program: MHS (Department of Health Policy & Management)
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Pharmacoeconomics, Pharmacoepidemiology, Pharmaceutical Policy, Decision Modeling

Jeffrey Yu obtained a MHS in Health Economics in the Department of Health Policy & Management. Prior to Hopkins, Jeffrey worked in economic consulting at Boston Health Economics (BHE) where he assessed and communicated the value of pharmaceutical, biotech, and medical device products through health economic modeling (e.g., cost-effectiveness, budgetary impact, social value, economically justifiable price), as well as healthcare data analytics. Interests include drug development, drug value, and healthcare decision-making. He is a reviewer for the Journal of Managed Care Pharmacy. Jeffrey received his AB in Economics and Biology from Bowdoin College (where he also examined drivers of tooth organogenesis in zebrafish).

Lijuan Zeng

Lijuan Zeng, MHS
Degree Program: MHS (Epidemiology)
Advisers: G. Caleb Alexander, MD, MS & Lea Drye, MS, PhD
Research Focus: Drug utilization, Clinical Trials, Systematic Reviews

Lijuan Zeng completed a MHS in the Department of Epidemiology with a concentration in clinical trials. In the Center for Clinical Trials, She explored various issues related to clinical trials, and mastered systematic review methods. Prior to coming to Hopkins, Lijuan received her bachelor degree in Pharmacy from Fudan University in Shanghai, where she specialized in Pharmacology and Pharmacy Administration. During the senior internship, she had experiences working in Shanghai Food and Drug Administration and later at Baxter Healthcare, which made her more interested in pharmaceutical safety and effectiveness issues. During the summer, Lijuan was a TA for Graduate Summer Institute of Epidemiology and Biostatistics. She is also working on examining controlled substance utilization research with claims data.

Meijia Zhou

Meijia Zhou, MHS
Degree Program: MHS
Adviser: G. Caleb Alexander, MD, MS
Research Focus: Drug Utilization and Safety

Meijia Zhou received a MHS in the Department of Epidemiology. Meija specialized in Pharmacology and majored in Economics for her undergraduate studies at University of Toronto, where she also accumulated some laboratory experience. She received her Master of Health Science Program in General Epidemiology and Methodology, in which she will continue to research drug utilization. Meija examined the prescribing trends of different therapeutic classes of antihypertensive medications and trends of fixed dose combination therapies in the United States using a national representative sample. Over the summer of 2013, she examined the safety of novel anticoagulants compared to warfarin using claims data.