Dr Marie Ooi

Dr Marie Ooi is a highly skilled Consultant Gastroenterologist, Hepatologist, and Interventional Endoscopist who provides comprehensive, individualised care for patients experiencing a wide range of gastrointestinal and liver disorders. With a reassuring and patient-centred approach, she focuses on delivering evidence-based medical care to optimise clinical outcomes. Her clinical practice encompasses the investigation and management of diverse digestive conditions, ranging from common issues like reflux, abdominal pain, and irritable bowel syndrome to complex cases involving inflammatory bowel disease and hepatobiliary cancers.

Dr Ooi completed her medical degree at the University of New South Wales, graduating with a Bachelor of Medicine and Bachelor of Surgery alongside a Bachelor of Science (Medicine) in 2006. She undertook her advanced training in gastroenterology at major tertiary hospitals in Sydney, achieving Fellowship of the Royal Australasian College of Physicians in 2015. To further refine her expertise, she completed prestigious postgraduate fellowship training in Japan and Shanghai, where she acquired advanced skills in complex endoscopic therapies. Dr Ooi is an active member of several prominent professional bodies, including the Gastroenterological Society of Australia, the American Gastroenterological Association, and the European Society of Gastrointestinal Endoscopy.

As an expert in interventional endoscopy, Dr Ooi is fully accredited by the Conjoint Committee for the Recognition of Training in Gastrointestinal Endoscopy. She is highly proficient in performing diagnostic and therapeutic procedures, including gastroscopy, colonoscopy, capsule endoscopy, and advanced techniques such as endoscopic ultrasound and endoscopic mucosal resection. Her dedication to preventative health is reflected in her active involvement in bowel cancer screening and multidisciplinary cancer care teams. Dr Ooi is committed to ensuring her patients receive clear communication and a supportive experience throughout their diagnostic and treatment journeys.