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General Preventive Medicine Residency


Program Director

Clarence LamClarence Lam, M.D., M.P.H. serves on faculty and as the program director of the preventive medicine residency program at the Johns Hopkins Bloomberg School of Public Health.Dr. Lam is a Phi Beta Kappa graduate of Case Western Reserve University where he completed his Bachelor of Arts in political science and biology. He earned his medical degree from the University of Maryland and his Master of Public Health from Johns Hopkins University. He completed his residency training at Johns Hopkins, where he also served as chief resident, and is board-certified in preventive medicine.

In November 2014, Dr. Lam was elected to serve as a state delegate representing District 12, which includes both Howard and Baltimore Counties, in the Maryland General Assembly, where he currently serves on the House Environment and Transportation Committee. He is one of only four physician-legislators currently in the Maryland General Assembly.

While in medical school, Dr. Lam was elected as the student-body president of the University of Maryland, Baltimore, and he interned on the health affairs staff of the Committee on Oversight and Government Reform of the U.S. House of Representatives where he assisted oversight investigations on drug safety policy. He also served as a biodefense analyst at the Center for Biosecurity of the University of Pittsburgh Medical Center and authored several publications on public health preparedness. From 2009-2014, he served on the legislative staff of Delegate Dan Morhaim, MD in the Maryland General Assembly.

Dr. Lam is involved in many community organizations and serves on several non-profit boards of directors, including Healthy Howard, Unified Community Connections (formerly the United Cerebral Palsy of Central Maryland), and as board chair of the Community Action Council of Howard County, which manages the county’s food bank, Head Start program, and provides for energy and housing assistance to residents in need. He was a past appointee to the Governor’s Commission for Asian Pacific American Affairs and to Howard County’s Spending Affordability Advisory Committee.

Clinical Director

Tina KumraTina Kumra, MD is the Clinical Director for the Johns Hopkins General Preventive Medicine Residency Program, overseeing the clinical rotations for the program.  She leads the patient centered medical home curriculum and the delivery of a culinary medicine initiative integrated into an underserved neighborhood of Baltimore.  She also serves as the Office Medical Director for the Johns Hopkins Community Physicians Remington Pediatrics Practice and is an active pediatrician. She is the co-founder and co-chair of the Diversity Leadership Council for Johns Hopkins Community Physicians and sits on the Health Equity Steering Committee for Johns Hopkins Medicine.  Dr. Kumra earned her medical degree from University of Virginia School of Medicine and completed her pediatric residency training at Indiana University School of Medicine.  Her recent honors include the Johns Hopkins Medicine Clinical Excellence Award for Quality and Safety.

Academic Directors

Elham HatefElham Hatef, MD, MPH serves as faculty at the Center for Population Health IT (CPHIT) in the Department of Health Policy and Management and as the academic director of the Johns Hopkins General Preventive Medicine Residency Program. Dr. Hatef is a board certified preventive medicine and public health physician. As the academic director of the program she runs the monthly residency rounds and provides training as well as mentorship to the residents throughout their residency. She earned her medical degree from Tehran University of Medical Sciences, in Tehran, Iran and her Master in Public Health from the Johns Hopkins Bloomberg School of Public Health. She completed a preliminary year in internal medicine at the Yale-affiliated Griffin Hospital in Connecticut, and residency and chief residency in preventive medicine and public health at our program.

Her main field of interest is health system design, implementation and evaluation with application of technology and health IT. She is involved in a number of projects in this area both internationally and in the U.S. At CPHIT she currently serves as the project leader on the development of population health framework and measurements for state of Maryland, a collaboration with CRISP (Chesapeake Regional Information System for our Patients) supported through Maryland State Improvement Model initiative by Centers for Medicare and Medicaid Services. She also works closely with Johns Hopkins HealthCare on the development of population health measurements for Johns Hopkins Health System. In addition, Dr. Hatef serves as the clinician innovator at Johns Hopkins Sibley Community Hospital Innovation Hub, designing personalized preventive services for patients with diabetes and other chronic disease using EHR and other clinical and public health data sources. She serves as the advisor to Iran Ministry of Health, Office for Prevention of Blindness and Eye Health. In this capacity she supervises a pilot project on development of telemedicine services for diabetic eye examination using non-mydriatic cameras in primary care setting. 

Mary Carol JenningsDr. Mary Carol Jennings is a board-certified physician in Public Health and General Preventive Medicine and holds faculty appointments with the International Health Department and General Preventive Medicine Residency (GPMR) of the Johns Hopkins Bloomberg School of Public Health. She currently serves as co-investigator on a Jhpiego-lead study on the measurement of stillbirth and early neonatal mortality in Tanzania, and on a GPMR-lead study on the health behavior impact of an innovative lifestyle medicine initiative into community-based primary care in Baltimore. Before joining the International Vaccine Access Center as the Project Director of the Rotavirus Accelerated Vaccine Introduction Network, she served as the Chief Resident of the Hopkins preventive medicine residency program, and has held multiple leadership roles in policy and advocacy with a variety of domestic and international health professional organizations and non-profits. She holds an MPH from the Johns Hopkins Bloomberg School of Public Health and an MD from the University of South Carolina.

Dr. Jennings’ research interests blend scientific inquiry with public health practice in the fields of health systems and community- and technology-informed approaches to improving maternal, neonatal and child health, with work experience in the U.S., Philippines, Kenya and Tanzania. Her focus is to test new platforms to scale up vaccine access, to determine best practices for scaling up vaccine access in unstable health systems, to make the economic case with and for countries to invest in preventive medicine strategies such as equitable, sustainable vaccine access programs, and to define methodological, research-based frameworks for community-based health systems strengthening interventions, focused on maternal, neonatal and child health.