James Michael McGinnis (born 12 July 1944) is a US physician, epidemiologist, and long-time contributor to national and international health programs and policy, including continuous policy responsibilities for leadership in disease prevention and health promotion through four US Government Administrations (Carter, Reagan, Bush, Clinton). An elected member of the Institute of Medicine of the National Academies, he currently also serves as IOM Senior Scholar, as well as executive director of its Roundtable on Value & Science-Driven Health Care.