Dr Derek Chan Gastro 3 years ago ID: #407137 Listed In : Business Consultants 801 London Rd Worcester Park Sutton SM3 9DW 020 8335 4678 https://www.drderekchangastro.com/ Business Description I understand how to work with my patients to ensure they receive the best care possible. My thoughtful and personalized approach means I’m fully committed to the health and well-being of all my patients. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : best gastroenterologist surrey gastroenterologist london gastroenterologist surrey gastroenterology london gastroenterology surrey.