Troy Brennan, MD

Former EVP and Chief Medical Officer, CVS Caremark; former Chief Medical Officer, Aetna

Troyen Brennan is an Adjunct Professor at Harvard Chan School of Public Health, and a National Advisor for Manatt.  He was formerly the Executive Vice President and Chief Medical Officer for CVS Health and Aetna. Before that, he was the President of the Brigham and Women’s Physician Organization and Professor of Medicine at Harvard Medical School and Professor of Law and Public Health at the Harvard Chan School of Public Health.  Brennan was formerly the Chair of the American Board of Internal Medicine and is a member of the National Academy of Medicine. He has published six books and over 600 articles.  His most recent book is The Transformation of American Health Insurance (Johns Hopkins University Press, 2023).