Jonathan Reiner, MD, is the director of the cardiac catheterization laboratory at The George Washington University Hospital and professor of medicine at The George Washington University in Washington, DC. A graduate of the University of Pennsylvania and Georgetown University, Dr. Reiner completed a residency in medicine at North Shore University Hospital and Memorial Sloan-Kettering Cancer Center in New York. He began a fellowship in cardiology at The George Washington University Medical Center in 1990. In 1994, he completed a fellowship in interventional cardiology, which, along with the management of patients with complex coronary artery disease, remains his focus today.