Burton H. Greenberg, MD, is dual-board certified in cardiology and internal medicine, with clinical focuses in cardiovascular disease and atrial fibrillation. Dr. Greenberg is a graduate of the University of Illinois College of Medicine, and began his internal medicine residency at Beth Israel Deaconess Medical Center/Harvard Medical School, where he also served in the US Navy as a medical researcher. He completed his internal medicine residency at the University of Chicago and his cardiology fellowship at the Mayo Clinic.