Dr. Benjamin Lewis is a cardiologist and professor of medicine at Columbia University Medical Center. He received his medical degree from the University of California, San Francisco School of Medicine. He was an intern at the Hospital of the University of Pennsylvania and a resident in internal medicine at Columbia Presbyterian Medical Center. He completed a fellowship in cardiology at the Peter Bent Brigham Hospital and Harvard Medical School in Boston. Dr. Lewis is board certified in internal medicine and in cardiovascular disease. His areas of expertise include coronary artery disease, heart disease in women, men's health, gender specific medicine, mitral valve prolapse, and cholesterol management.