Dr. Greenspun leads Calibre One’s health and well-being practice group, focusing primarily on placing chief medical officers, board positions and similar executives across nearly every industry. An experienced chief medical officer himself, Greenspun has held executive roles at Deloitte, Dell, Northrop Grumman, Korn Ferry, and Guidehouse. As a cardiac anesthesiologist, Greenspun has practiced in major academic medical centers, as well as community hospitals. He is unique among physician executives, having served every aspect of healthcare and related industries, including payer, provider, life sciences, government, technology, retail, employers & national security. Co-author of “Reengineering Health Care: A Manifesto for Radically Rethinking Health Care Delivery,” Greenspun is recognized as a thought leader in the healthcare industry and has been named one of the “50 Most Influential Physician Executives in Healthcare” by Modern Healthcare. Greenspun received his bachelor’s degree from Harvard University, his medical degree from the University of Maryland, and completed his residency and fellowship at the Johns Hopkins University Hospital in anesthesiology and critical care medicine, serving as chief resident. He has served on the advisory boards for the World Economic Forum, Anthem, Healthcare Information and Management Systems Society (HIMSS), Tufts and George Mason universities. A resident of the D.C. area, Greenspun lives with his wife and sons and enjoys cycling, guitar, and supporting local youth athletic and music programs.