Jennifer Ellis, MD, is a senior cardiac surgeon at MedStar Heart & Vascular Institute. Board certified in cardiac surgery and thoracic surgery, she specializes in treating acquired conditions to the heart such as hardening of the arteries, valvular heart disease, and conditions of the aortic and mitral valve. After receiving her medical degree from Jefferson Medical College, she trained in general surgery at Lincoln Medical and Mental Health Center in the Bronx and was a research fellow at Memorial Sloan-Kettering Cancer Center. She then completed her cardiothoracic fellowship at New York University Medical Center. She is member of the Society of Thoracic Surgeons (STS), a Fellow of the American College of Surgeons (ACS), a Fellow of the American College of Cardiology (ACC), and assistant professor of surgery at Georgetown University School of Medicine.