Robert J. Sommer MD

Robert J. Sommer, MD, is an accomplished medical professional and Associate Professor of Medicine at Columbia University Irving Medical Center. He currently serves as the Director of Invasive Adult Congenital Heart Disease at Columbia's Interventional Cardiovascular Care program, based in Columbia University Irving Medical Center/NewYork-Presbyterian.

Dr. Sommer's expertise lies in the areas of pediatric cardiology, adult congenital heart disease, and interventional cardiology. He is Board-certified in both Pediatric and Adult Congenital Heart Disease. He completed his training in pediatrics and pediatric cardiology at Mount Sinai Hospital in New York City and Boston Children's Hospital in Boston.

Dr. Sommer has expertise in a diverse range of congenital and structural heart interventions. Dr. Sommer directs the Left Atrial Appendage Closure Team at Columbia, having participated in the PREVAIL Trial, the CAP2 registry, and the CHAMPION-AF Trials using the Watchman Device, as well as the Amulet Device Pivotal and Conformal Device Feasibility Trial. In addition to diagnostic catheterizations in complex congenital heart disease, he performs over 200 atrial septal defect and patent foramen ovale (PFO) closures and over 100 left atrial appendage closures annually. He has decades of experience in closing patent ductus arteriosus and ventricular septal defects, as well as stenting coarctation of the aorta.