Dr Sebastian  is a Consultant Gastroenterologist with special expertise in IBD in Hull & East Yorkshire since 2004, having returned to the UK after training in Europe. Seb has national and international recognition as expert in Colitis & Crohn’s disease and is the service lead for the IBD service in the HEY NHS Trust. He is involved in and led a number of multicentre clinical trials in IBD. He is in a number of committees and research groups related to IBD both nationally and internationally.. He has over 120 peer reviewed publications mainly in the field of IBD