Dr. Hahn is Professor of Medicine at Columbia University Irving Medical Center in New York, Chief Scientific Officer of the Echo Core Lab at the Cardiovascular Research Foundation and Director of Interventional Echocardiography in the Columbia Valve Center. She is an active member of the American Society of Echocardiography as well as the American College of Cardiology (member of the Competency Management Committee, past Scientific Sessions Planning Committee/Valvular Heart Disease Topic Coordinator).