Dr. Benjamin H. Lewis is an associate clinical professor of medicine at Columbia University and an attending physician at Columbia Presbyterian Medical Center, the New York-Presbyterian Hospital in New York. After receiving his B.S. in biological sciences from the University of California at Berkeley, he attended the University of California at San Francisco Medical School. Dr. Lewis then continued his training with an internship at the University of Pennsylvania, followed by his residency at Columbia Presbyterian Medical Center. Upon completing a two-year fellowship at the Brigham and Women's Hospital in Boston, Dr. Lewis returned to Columbia Presbyterian in 1982. He has remained with Columbia University College of Physicians and Surgeons ever since.

Dr. Lewis has devoted his career to the primary and secondary prevention of cardiovascular disease. His particular focus is on the increased use of lifestyle approaches, medical therapies, and noninvasive, nonradioactive techniques—in particular, ultrasound—for the diagnosis and management of heart-disease patients. He also has a special interest in gender-specific medicine