He is nationally-accredited for bowel cancer screening colonoscopy and has specialist interests in inflammatory bowel disease (IBD) and high-quality endoscopy, supported by NIHR project grant funding.

Dr Hayee is a member of the British Society of Gastroenterology (for whom he serves as a member of the IBD section committee), the American Gastroenterological Association, the European Crohn’s and Colitis Organisation, the American and European Societies for Gastrointestinal Endoscopy and the Association for Bariatric Endoscopy.

He is Clinical Lead for Gastroenterology, Training Lead for Endoscopy, and Co-director of the King’s Institute of Therapeutic Endoscopy. He combines his two main interests (IBD and Endoscopy) in clinical service and research. He has projects investigating graft versus host disease of the gut, cystic fibrosis, chromoendoscopy for colitis surveillance, and has an active interest in novel treatments for IBD.