education insights | January 09, 2026

Dr. Marie-Noelle Langan, MD – New York, NY

Dr. Marie-Noelle Langan is a cardiologist in New York, NY and is affiliated with multiple hospitals in the area, including Mount Sinai Hospital, Lenox Hill Hospital, Mount Sinai Queens, Mount Sinai Brooklyn, Mount Sinai Beth Israel, Mount Sinai West, and Mount Sinai Morningside. She received her medical degree from University of Toronto Faculty of Medicine and has been in practice 33 years. She specializes in cardiac electrophysiology and interventional cardiology and is experienced in general cardiology, cardiac electrophysiology, atrial fibrillation, and cardiac critical care.