Dr. Harry Greenspun, formerly Chief Medical Officer at Dell, is now Senior Advisor, Healthcare Transformation and Technology at Deloitte. He is also the author of Reengineering Health Care: A Manifesto for Radically Rethinking Health Care Delivery. Harry maintains a very active Facebook profile, but make sure you don't miss him on LinkedIn.
Connect with Harry Greenspun on LinkedIn: http://www.linkedin.com/in/harrygreenspun
He's a physician executive who is very connected, so you'll want to be in his network. In 2010, Modern Healthcare magazine named him one of the “50 Most Powerful Physician Executives in Healthcare.”