Stephen M. Zappala MD FACS is a Urologist in Andover, Massachusetts: a Massachusetts General Hospital Urology – Affiliated practice. He attended Boston College, University of Massachusetts Medical, with Urology training at UCLA and UMASS. His Pediatric Urology fellowship was at the Hospital for Sick Children, Great Ormond Street, London, England. Dr. Zappala has obtained 14 U.S. patents on medical devices, and he serves on the Clinical Advisory Board of Riverside Partners, a Boston-based, private equity firm specializing in healthcare and technology.