F. Xavier Pi-Sunyer, M.D., MPH is professor of medicine at Columbia University College of Physicians and Surgeons in New York City. At St. Luke's-Roosevelt Hospital Center he serves as chief of endocrinology, diabetes, and nutrition, and is director of the New York Obesity Research Center. Dr. Pi-Sunyer is also a senior attending physician at St. Luke's-Roosevelt Hospital and New York-Presbyterian Hospital.
He recently chaired the committee of the National Heart, Lung, and Blood Institute that researched and defined the federal government's new guidelines for the prevention and treatment of obesity. He has served as president of the American Diabetes Association, the American Society for Clinical Nutrition, and the North American Association for the Study of Obesity. He has been a Fellow of the Fogarty International Center of the National Institutes of Health, a member of the Institute of Medicine's task forces on medical nutrition therapy and on dietary reference intakes on macronutrients. He served on the 2005 U.S. Dietary Guidelines Advisory Committee. He is currently a member of the FDA Science Board Advisory Committee.
Dr. Pi-Sunyer has been a member of the American Diabetes Association for over 25 years and served as president (1992-1993) and chaired numerous committees at the national, regional, and local levels. In 1993 he was awarded the Banting Medal for service from the association. He has also served in numerous committees for the American Heart Association, as a member of the Council and Executive Committee of the Council on Nutrition and Physical Activity, and as chair of the obesity committee.
Dr. Pi-Sunyer has written over 300 articles for international peer-reviewed journals and the lay press and has contributed chapters to over 100 medical texts. From 1994 to 2005, he served as the associate editor for the International Journal of Obesity, and from 1995 and 2000 served as editor-in-chief of Obesity Research. He also is a journal referee for 20 other professional journals.