Chief, Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA, United States, 1998-
Director, Vascular Medicine & Atherosclerosis Unit, Brigham and Women's Hospital, Boston, MA, United States, 1990-1997
Assistant Physician to Physician, New England Medical Center, Boston, MA, United States, 1980-1990
Assistant to Associate Professor of Medicine, Tufts University, Medford, MA, United States, 1980-1990