Marco N. Diaz MD, FACC is Chief of Cardiovascular Services at MaineHealth and Chair of Cardiac Services at Maine Medical Center, where he provides strategic leadership for cardiovascular care, academic and quality initiatives across one of the largest integrated health systems in New England. A recognized leader in structural heart disease imaging, Dr Diaz has extensive experience in clinical trials, advanced cardiovascular therapies and value-based care delivery.  He has held multiple leadership roles with the American College of Cardiology, including on the Board of Governors, national Quality and Advocacy Committees and is widely engaged in efforts to advance quality, access and innovation in cardiovascular care.