Dr. John Sims, MD, is a highly skilled Clinical Cardiac Electrophysiologist based in Tyler, TX, with over 22 years of experience in various aspects of cardiovascular care, including Interventional Cardiology and Internal Medicine. He graduated from the University of Texas Health Sciences Center at San Antonio Long School of Medicine in 2001, followed by a Fellowship in Cardiovascular Disease at Baylor University Medical Center from 2004 to 2007. Dr....