Mark H. Schoenfeld, MD, FACC ,FAHA, FHRS has been a Clinical Professor of Medicine at the Yale University School of Medicine for nearly 2 decades as well as a Fellow of Saybrook College, Yale University, and Professor in the Dept of Cardiovascular Medicine at Frank H. Netter MD School of Medicine, Quinnipiac University. After graduating from Yale College and Harvard Medical School he was a medical resident, cardiac fellow and one of the earliest fellows in cardiac electrophysiology and pacing at the Massachusetts General Hospital before returning to Yale. He established the Cardiac Electrophysiology and Pacing Laboratories at both the Hospital of St Raphael (New Haven) and St Mary's Hospital (Waterbury). He has been involved in numerous clinical trials, having been one of the original investigators of the implantable cardioverter-defibrillator and multiple elaborations of this technology thereafter including transvenous devices and cardiac resynchronization therapy and his involvement with catheter ablation for the management of cardiac arrhythmias extends back more than 3 decades. He served as President of the Heart Rhythm Society (HRS), the international organization dedicated to improving the care of patients with cardiac arrhythmias by promoting research, education and optimal health care policies and standards, and has served as the Governor of the Connecticut Chapter of the American College of Cardiology (ACC). Beyond caring for thousands of patients, being involved in clinical research and in teaching, he has helped to develop ACC/AHA/HRS medical guidelines to guide practitioners on the management of patients with cardiac arrhythmias. He has been active in health care policy and regulatory affairs as relates to cardiology and cardiac electrophysiology, working with the FDA on drug/device approval and the Centers for Medicare and Medicaid Services (CMS) by serving on the Relative Value Scale Update Committee (RUC) of the American Medical Association which advises CMS on reimbursement.