Williams received his undergraduate degree at the University of Chicago, followed by medical school at the University of Chicago’s Pritzker School of Medicine. He completed his internal medicine residency at Emory University, and overlapping fellowships in cardiology, clinical pharmacology, and nuclear medicine at the University of Chicago. He is board certified in internal medicine, cardiovascular diseases, nuclear medicine, nuclear cardiology and cardiovascular computed tomography. He served as professor of medicine and radiology and director of nuclear cardiology at the University of Chicago Pritzker School of Medicine. He then became the Dorothy Susan Timmis Endowed Professor and chair of the division of cardiology at Wayne State University School of Medicine in Detroit, MI. In 2013, Williams assumed the position of James B. Herrick Professor and chief of the division of cardiology at Rush University Medical Center in Chicago, IL. Williams has served on numerous committees and boards at the national level, including the American Society of Nuclear Cardiology (ASNC), the American Heart Association, the American Medical Association (AMA), the Certifying Board of Nuclear Cardiology, the Certifying Board of Cardiac Computed Tomography, the Society of Cardiovascular Computed Tomography and the Association of Black Cardiologists (ABC). He served as President of ASNC and as Chairman of the Board of ABC. He also served on the Cardiovascular Disease Examination Board of the American Board of Internal Medicine. Williams previously served as chair of the ACC’s Cardiac Imaging Committee, the Cardiovascular Imaging Collaborative, the Coalition of Cardiovascular Organizations and the Cardiac Imaging Council. He has also been an ACC delegate to the AMA since 2000. Williams served as president of the ACC from 2015-2016.