Dr Walker is a gastroenterologist based in Varsity Lakes, Queensland. He has been practicing medicine for over 20 years and is highly experienced in the diagnosis and treatment of digestive disorders. He has a special interest in inflammatory bowel disease and has a particular expertise in endoscopy and colonoscopy. He is also experienced in the management of irritable bowel syndrome and other functional gastrointestinal disorders. He is a Fellow of the Royal Australasian College of Physicians and a member of the Gastroenterological Society of Australia.