Allen J. Taylor, MD, is a board-certified cardiologist and clinical researcher, specializing in cardiovascular imaging and prevention. Dr. Taylor obtained his medical training at the Johns Hopkins University, followed by residency training in internal medicine at the Walter Reed Army Medical Center, Washington, DC, and cardiovascular disease fellowship at the University of Virginia. During a 20-year career in the United States Army at Walter Reed, he served as the director of cardiovascular research, director of the Cardiovascular Disease Training Program, and chief of the cardiology service. He retired from military service in 2008 at the rank of Colonel, and held the Army’s “A” proficiency designator, and was decorated with the Legion of Merit. He is a full professor of medicine at the Uniformed University of the Health Sciences and Georgetown University. He is the director of Advanced Cardiac Imaging at the Washington Hospital Center and Medstar Research Health Institute in Washington, DC. Dr. Taylor’s major research accomplishments include defining the role of lipid-lowering therapy on carotid atherosclerosis and in the field of cardiac CT include conducting long-term prospective outcomes trials, randomized clinical trials on the utility of the technique, and methods to enhance the safety and appropriateness of cardiovascular imaging. He has published extensively and is the founding editor-in-chief of the Journal of Cardiovascular CT, and editor of the Braunwald’s Heart Disease companion text atlas on cardiac CT. He is the president of the Society of Atherosclerosis Imaging and Prevention, immediate past chair of the Imaging Council, and current chair of the FOCUS campaign of the American College of Cardiology, and he serves on the board of directors of the Society of Cardiovascular CT and Certification Board of Cardiovascular CT. He has contributed to multi-society guidelines on Cardiac CT training, terminology, and performance; quality standards for imaging performance and radiation protection; appropriate use criteria for diagnostic testing; and national standards on cardiovascular disease management and prevention.