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Tobias Gerhard, BSPharm, PhD, FISPE


About Tobias Gerhard is a pharmacoepidemiologist and the Founding Director of the Rutgers Center for Pharmacoepidemiology and Treatment Science (PETS). He received his pharmacy degree from the University of Freiburg, Germany (2002), and his PhD in pharmacoepidemiology from the University of Florida (2007). Dr. Gerhard’s work focuses on the development and evaluation of modern pharmacoepidemiologic

Greta Bushnell, PhD, MSPH

Assistant Professor

About Greta Bushnell is a pharmacoepidemiologist focused on studying the use, effectiveness, and safety of pharmaceuticals prescribed to treat mental illnesses in young people. Dr. Bushnell joined Rutgers in 2020, is an Assistant Professor of Epidemiology with the Department of Biostatistics and Epidemiology at the Rutgers School of Public Health, and is a core member

Stephen Crystal, PhD

Distinguished Research Professor

About Dr. Crystal is Board of Governors Professor of Health  Services Research at Rutgers University, where he directs the Center for Health Services Research. He is recognized nationally for his rigorous and influential research on medication outcomes, and on Medicaid policies and systems, particularly for behavioral health care delivery. His more than 300 papers, books and other publications, with more

Chintan Dave, PharmD, PhD

Assistant Professor

About Chintan Dave, a pharmacoepidemiologist and health service researcher, joined PETS and Ernest Mario College of Pharmacy in 2019 as an Assistant Professor of Pharmacy. He received his pharmacy degree from St. Louis College of Pharmacy (2012), his Ph.D. in Pharmacoepidemiology from University of Florida (2017) and post-doctoral training from Harvard Medical School (2019). He

Daniel B. Horton, MD, MSCE

Assistant Professor

About Daniel Horton is a pediatric rheumatologist and pharmacoepidemiologist who performs clinical, translational, and health services research. He started at Rutgers in 2016 as an Assistant Professor and Chancellor’s Scholar in the Department of Pediatrics at Rutgers Robert Wood Johnson Medical School and was a founding faculty member of PETS in 2017. He graduated from

Sandra Lopez Leon, MD, PhD

Adjunct Faculty

About Sandra Lopez-Leon is a genetic pharmacoepidemiologist focused on studying the safety of new neuropsychiatric medications at all stages of drug development. She graduated from the Erasmus University Medical Center in the Netherlands with the degrees of Master in Science, Doctor in Science, and a Ph.D. in Genetic Epidemiology. In 2014, the United States Government

Yola Moride PhD, FISPE

Research Professor

About  Yola Moride, a pharmacoepidemiologist, joined PETS on a part-time basis in 2017 as a Research Professor. She received her Ph.D. in Pharmacoepidemiology from McGill University (1994) and post-doctoral training from University of Bordeaux (1996).  She has pursued an academic career at Université de Montréal since 1996.  She is Past-President of the International Society for

Mary Beth Ritchey, PhD

Associate Research Professor

About Mary Beth Ritchey is a part-time Associate Research Professor at PETS where she conducts pharmacoepidemiology research, teaches, and mentors students/fellows in pharmacoepidemiology methodology. Outside of PETS, she is the Principal and Owner of Med Tech Epi, LLC where she conducts strategic evidence generation planning and analysis of health care databases for regulatory decision-making under

Christopher G. Rowan, PhD

Adjunct Associate Professor

About Christopher G. Rowan PhD, is a pharmacoepidemiologist, biostatistician, and outcomes researcher by training. He is the Founder and President of Collaborative Healthcare Research & Data Analytics (COHRDATA). His research vision is to generate evidence, using real-world data that healthcare decision makers (i.e., patients, providers, payers, and regulators) and industry partners may use to guide

Jason Roy, PhD

Professor & Chair

About Jason Roy is a Professor of Biostatistics and Chair of the Department of Biostatistics and Epidemiology. He is director of Rutgers University Biostatics and Epidemiology Services (RUBIES) and co-director of Biostatistics, Epidemiology, and Research Design (BERD) core, NJ ACTS. Previously, he was Professor of Biostatistics in the Department of Biostatistics, Epidemiology, and Informatics at