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Center for Health Services and Outcomes Research

Faculty and Staff

Faculty by Research Area



Core Faculty

Albert WuAlbert Wu, MD, MPH

CHSOR Director

Jodi SegalJodi Segal, MD, MPH

CHSOR Associate Director

Jill MarstellerJill Marsteller, PhD, MPP

CHSOR Associate Director

Eric BassEric Bass, MD, MPH



Zack BergerZack Berger, MD, PhD

Associate Professor


Lee BoneLee Bone, RN, MPH

Associate Professor


Emily BossEmily Boss, MD, MPH



Hsien-Yen ChangHsien-Yen Chang, PhD

Associate Scientist


Emmanuel DraboEmmanuel Drabo, PhD

Assistant Professor


Sydney DySydney Dy, MD, MSc



Yea-Jen HsuYea-Jen Hsu, PhD, MHA

Assistant Scientist


Judith KasperJudith Kasper, PhD



Hadi KharraziHadi Kharrazi, MD, PhD

Associate Professor


Joe LevyJoe Levy, PhD

Assistant Professor


Craig PollackCraig Pollack, MD, MHA

Associate Professor


Dan PolskyDan Polsky, PhD

Bloomberg Distinguished Professor


Aditi SenAditi Sen, PhD

Assistant Professor


Ann SkinnerElizabeth Skinner, MSW

Senior Scientist


Claire SnyderClaire Snyder, PhD



Donald SteinwachsDonald Steinwachs, PhD

Professor - Emeritus


Jonathan WeinerJonathan Weiner, DrPH



Christine WestonChristine Weston, PhD

Assistant Scientist


Renee WilsonRenée Wilson, MS

Research Associate


Jennifer WolffJennifer Wolff, PhD

Eugene and Mildred Lipitz Professor


Christina YuanChristina Yuan, PhD, MPH

Assistant Professor


Affiliated Faculty

Faculty by Research Area



Caleb AlexanderCaleb Alexander, MD, MS



Colleen BarryColleen Barry, PhD

Fred & Julie Soper Professor
Chair, Department of Health Policy and Management

Mary Catherine BeachMary Catherine Beach, MD, MPH



Daniel BrotmanDan Brotman, MD

John A. Flynn Professor


Edward BunkerEdward Bunker, MPH, MS

Research Associate


Renan CastilloRenan Castillo, PhD

Associate Professor


David ChinDavid Chin, MD, MBA

Distinguished Scholar


Michael EllenbogenMichael Ellenbogen, MD

Assistant Professor


Lilly EngineerLilly Engineer, DrPH, MD, MHA

Assistant Professor


Elliott HautElliott Haut, MD, PhD

Associate Professor


Chidinma IbeChidinma Ibe, PhD

Assistant Professor


Adam LevineAdam Seth Levine, PhD, MA

Stavros Niarchos Foundation Agora Institute Associate Professor


Bruce LeffBruce Leff, MD



Ellen MacKenzieEllen Mackenzie, PhD

Bloomberg Distinguished Professor
Dean, Johns Hopkins Bloomberg School of Public Health

Henry MichtalikHenry Michtalik, MD, MPH

Assistant Professor


Douglas MogulDouglas Mogul, MD, MPH

Assistant Professor


Najlla NasseryNajlla Nassery, MD, MPH

Assistant Professor


Samantha PittsSamantha Pitts, MD, MPH

Assistant Professor


Tangela PurnellTanjala Purnell, PhD, MPH

Assistant Professor


Lisa ReiderLisa Reider, PhD

Assistant Professor


Suchi SariaSuchi Saria, PhD, MSc

John C. Malone Assistant Professor


Richard Skolasky CHSORRichard Skolasky, MA, ScD

Associate Professor


Kenneth ShermockKenneth Shermock, PharmD, PhD

Assistant Professor


Sarah SzantonSarah Szanton, PhD, MSN

Endowed Professor for Health Equity and Social Justice


Staff Members

Mary Breckenridge-Keyes, Senior Administrative Coordinator

Julia Burgdorf, Postdoctoral Fellow

Margo ChapinResearch Assistant 

Vadim Dukhanin, Research Associate

Diane Echavarria, Research Program Manager

Jennifer Greenwell, Grants & Contracts Analyst

Amy Guo, Research Assistant 

Ja Alah-Ai HeughanResearch Program Manager

Nadia Hay, Program Manager

Jamey Longden, Senior Administrative Coordinator

Rachel Jones, Grants & Contracts Manager

Amrutha Kadali, Research Assistant

Mani Keita, Research Assistant

Chris Kitchen, Senior Programmer Analyst

Elyse Lasser, Research Associate

Klaus Lemke, Biostatistician

Kristen McArthurResearch Assistant

Safiyyah Okoye, Postdoctoral Fellow

Jenni Seale Reiff, Research Assistant

Tom Richards, Senior Programmer Analyst

Danny ScerpellaSenior Research Program Coordinator

Ritu Sharma, Research Program Manager

Maureen Skehan, Research Associate

Ambrym Smith, Research Assistant

Lauren Tansky, Administrative Coordinator

Saraniya Tharmarajah, Research Assistant

Judith Vick, Medical Resident

Lisa Wilson, Research Associate

Brenda Zacharko, Administrative Coordinator

Allen Zhang, Senior Research Data Analyst

Zehui Zhou, Research Assistant