Margaret L. (Molly) McNairy, MD, MSc, is the David C. and Betty Farrell Professor of Medicine and chief of the Division of General Medicine, Geriatrics and Hospital Medicine at WashU Medicine. A global health scholar with a particular focus on improving primary health care for chronic diseases including HIV and cardiovascular disease for people in extreme poverty, McNairy uses a multidisciplinary approach including rigorous observational research as well as clinical and implementation trials.