Experienced Gastroenterologist & General Physician Dr Mendall is a senior experienced gastroenterologist in practice for nearly 20 years. He is qualified from Cambridge University in 1982 and the Middlesex Hospital in 1985 which distinction. He is Head of Service for Gastroenterology and Endoscopy at Croydon University Hospital which serves a large and needy population. He is a recognised trainer in gastroenterology and endoscopy and an active researcher with more than 75 peer reviewed publications