John M. Stulak, M.D., is a cardiovascular surgeon and Professor of Surgery in the Department of Cardiovascular surgery at Mayo Clinic in Rochester, MN. His primary clinical interests include arrhythmia surgery (Maze procedure), ascending aortic aneurysm, cardiac tumors, coronary artery disease, heart transplantation, mechanical circulatory support (left ventricular assist device, total artificial heart, ECMO), pericardial disease, and valvular heart disease. In addition to his clinical activities, Dr. Stulak is active in outcomes research and national clinical trials.