Dr. Markwood completed his undergraduate education at the United States Military Academy at West Point in West Point, NY. He received his medical degree from Jefferson Medical College in Philadelphia, PA. From there he completed his internal medicine internship at Fitzsimmons Army Medical Center in Colorado and his residency and fellowship at Walter Reed Army Medical Center in Washington, DC. He continued his education in Cardiac Electrophysiology where he completed his fellowship at the University of Maryland Medical System in Baltimore, MD. Dr. Markwood joined CNY Cardiology in 2007. He is Board Certified in Cardiology and Clinical Cardiac Electrophysiology.