Dr. John Kassotis received his doctorate in chemical engineering from the Columbia University, School of Engineering and Applied Sciences, in 1985 and earned his MD degree from the Columbia College of Physicians and Surgeons in 1990. After completing his residency, cardiovascular fellowship, and electrophysiology fellowship at the Presbyterian Hospital, Dr. Kassotis began the Arrhythmia Service at New York Methodist Hospital (clinical affiliate of the NY Presbyterian Hospital Network) where he served as the director. In 2005, Dr. Kassotis was appointed the director of the Clinical Cardiac Electrophysiology Section and Fellowship Programs at SUNY Downstate Medical Center. He has authored or coauthored over 70 peer-reviewed articles, book chapters, and patents. He is the recipient of multiple teaching awards and serves as associate editor of the journal Cardiology.