Dr. John Day, MD, is a highly esteemed cardiologist based in Salt Lake City, UT, with over 20 years of experience in the field. He is board certified in both cardiology and cardiac electrophysiology. After obtaining his medical degree from Johns Hopkins University, Dr. Day completed his residency and fellowship training at Stanford University. He has a clinical focus on atrial fibrillation and is currently the physician executive of cardiovascular services for Mountain Star HCA Healthcare System....