Dr Ombiga is a specialist Gastroenterologist and Hepatologist, with an interest in Inflammatory Bowel Disease and Hepatitis. He has experience in gastroscopy, colonoscopy and advanced interventional endoscopy procedures such as complex stricture management, gastrointestinal stenting and endoscopic mucosal resection (EMR) of large polyps.

Originally from Papua New Guinea, Dr Ombiga completed his Gastroenterology training at Liverpool and Nepean Hospitals in Sydney as a Specialist Physician. Dr Ombiga holds a Fellowship of the Royal Australasian College of Physicians in Gastroenterology and Hepatology. He spent two years of further research and training at the Fremantle Hospital in Perth as a Fellow in Inflammatory Bowel Disease.

Dr Ombiga also holds an appointment as a Staff Gastroenterologist and Hepatologist at the Cairns Hospital where he has had a large volume of experience in treating viral Hepatitis, chronic liver disease, IBD, and interventional endoscopy. In addition to teaching junior medical staff and JCU medical students he teaches advanced Gastroenterology trainee registrars since 2007.