Dr. Walid Gellad is an internist with expertise in pharmacoepidemiology, drug safety, and pharmaceutical policy. With an R01 from NIDA, he leads a research team developing and implementing machine learning models predicting opioid related adverse events using healthcare and social services data. He has authored more than 220 peer-reviewed publications in leading medical and policy journals, and he is a regular commentator on pharmaceutical policy issues in major news outlets. In 2019, he received the Presidential Early Career Award for Scientists and Engineers (PECASE), and he was elected to the American Society for Clinical Investigation in 2021.

At the University of Pittsburgh, Dr. Gellad is a Professor of Medicine and Director of the Center for Pharmaceutical Policy and Prescribing, a multidisciplinary research and policy center which works across the Schools of the Health Sciences at Pitt to facilitate research and inform policy. He received a degree in Music from Swarthmore College and an MD degree 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 and Harvard Medical School, along with a Master’s degree in public health from the Harvard School of Public Health.