Dr. Mark R. Kahn is a cardiologist in Syosset, New York and is affiliated with multiple hospitals in the area, including Mount Sinai Hospital and St. Catherine of Siena Hospital. He received his medical degree from Icahn School of Medicine at Mount Sinai and has been in practice between 11-20 years. Dr. Mark R. Kahn has expertise in treating coronary artery disease, heart failure, hypertension & high blood pressure, among other conditions - see all areas of expertise. Dr. Mark R. Kahn accepts Medicare - see other insurance plans accepted.