Dr. Gellad’s research focuses on pharmacoepidemiology and health services research. He was the recipient of a career development award from the Department of Veterans Affairs and is now the principal investigator on grants from the VA, NIH, State of Pennsylvania, and private foundations for multiple studies of pharmaceutical policy and prescription use. With an R01 from NIDA, he leads a research team developing machine learning models predicting opioid related adverse events using healthcare and social services data. He has authored more than 150 publications in leading medical and policy journals. He is a former member of the Food and Drug Administration (FDA) advisory committee on nonprescription drugs and FDA Drug Safety Oversight Board. In 2019, he received the Presidential Early Career Award for Scientists and Engineers (PECASE), the government’s highest honor for scientists and engineers in the early stages of their independent research careers.

In addition to his research. Dr. Gellad has leadership roles at the University of Pittsburgh. He serves as the associate division chief for research in the Division of General Internal Medicine at the University of Pittsburgh. He also directs the Center for Pharmaceutical Policy and Prescribing at Pitt, a multidisciplinary research and policy center that works across the Schools of the health sciences at Pitt to facilitate research and inform policy.

Dr. Gellad is board certified in internal medicine. He received a degree in Music from Swarthmore College and graduated summa cum laude from the University of Maryland School of Medicine. He completed a residency and chief residency in internal medicine at Brigham and Women's Hospital, along with a Master’s degree in public health from the Harvard School of Public Health. He sees primary care patients in the VA Pittsburgh Healthcare System and attends on the inpatient general medical service.