Joshua R. Silverstein, MD, FHRS Joshua R. Silverstein, MD, FHRS, is an electrophysiologist with AHN Cardiovascular Institute who specializes in the treatment of congenital heart disease and defects, coronary artery disease, heart failure, and heart rhythm problems like arrhythmia. He sees patients of all ages and speaks English. He received his medical degree from Boston University School of Medicine in Boston, Massachusetts. His residency was completed at Yale New Haven Hospital in New Haven, Connecticut. Dr. Silverstein also did fellowships at both Harvard University in electrophysiology and Brown University in cardiovascular disease. He is certified by the American Board of Internal Medicine in cardiovascular disease, electrophysiology, and internal medicine. He has been published for his vast expertise in cardiovascular disease as well as conducted a variety of specialized research. Dr. Silverstein see patients at Allegheny General Hospital.