Jay Greenberg, MD

Marc DiFazio, M.D., is the Vice President ofambulatory Services at Children’s National Hospital. He completed his pediatric and neurology training at Walter Reed Army Medical Center, and went on to become the Chief of Child Neurology at Walter Reed, where he served on active duty until 2005 before transitioning to private practice in Rockville, MD.

With a health care experience designed around kids' unique needs, Children's National Hospital is the premier provider of pediatric services in the Washington, D.C., metro area and its only health system specializing in kids. Elizabeth Wells, M.D., is vice president of the Neuroscience and Behavioral Medicine Center at Children's National. Learn more about Dr. Wells.

Ian Leibowitz, MD is Division Chief, Gastroenterology, Hepatology and Nutrition Services at Children's National Hospital. He is an elected Councilor to the Executive Committee of the Northamerican Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASOHAN) and is a member of the Strategic Council and Physicians Leadership Group with ImprovedCareNow, a national collaborative that has created a community of clinicians and researchers that measures outcomes and develops best clinical standards.