Troyen A. Brennan, MD, MPH, is Senior Vice President and Chief Medical Officer of Aetna Inc., one of the nation’s leading healthcare and related benefits organizations. In this role, Dr. Brennan oversees all clinical policy and medical management at Aetna. Prior to joining Aetna, Dr. Brennan served as President and CEO of Brigham and Women’s Physician’s Organization from 2000-2006. In his academic work, he served as Professor of Medicine at Harvard Medical School and Professor of Law and Public Health at Harvard School of Public Health. He has published 240 peer-reviewed papers and four books.

Dr. Brennan received his MD and MPH degrees from Yale Medical School, his JD degree from Yale Law School, and his MA degree from Oxford University. He completed his internship and residency in internal medicine at Massachusetts General Hospital. He is a member of the Institute of Medicine and the National Academy of Sciences.