Dr Marie Ooi is a gastroenterologist and interventional endoscopist with extensive clinical experience in the management of gastrointestinal disorders.

Dr Ooi graduated from the University of New South Wales in 2006 and became a Fellow of the Royal Australasian College of Physicians in 2015. Dr Ooi completion of her Advanced Training in Gastroenterology at Royal North Shore Hospital and Concord Hospital in Sydney. Dr Ooi went on to complete an advanced fellowship training in Japan and Shanghai, where she obtained advanced skills in complex endoscopic therapy, including endoscopic ultrasound (EUS) and endoscopic mucosal resection (EMR) of gastrointestinal cancer.

She is accredited by the Australian Conjoint Committee for the Recognition of Training in Gastrointestinal Endoscopy (CCRTGE) for gastroscopy, colonoscopy, endoscopic ultrasound (EUS) and capsule endoscopy. She worked as a Gastroenterologist and interventional endoscopist in South Australia Health after her training before moving back to New South Wales. She is currently practising as a gastroenterologist and interventional endoscopist in South Western Sydney Local Health Area.

As an active member of the Gastroenterological Society of Australia, American Gastroenterological Association, Conjoint Committee for recognition of training in Gastrointestinal Endoscopy and European Society of Gastrointestinal Endoscopy, Dr Ooi practices latest evidence-based medicine to optimise clinical outcomes. Dr Ooi performs gastroscopy, colonoscopy, polypectomy, treatment of haemorrhoids, balloon dilatation for gastrointestinal stricture and endoscopic ultrasound at Liverpool Day Surgery.

Dr Ooi’s special interests include:

• Bowel cancer screening
• Reflux, dysphagia, abdominal pain
• Treatment of Helicobacter pylori
• Iron deficiency anaemia
• Irritable bowel syndrome (IBS)
• Coeliac disease
• Inflammatory bowel disease (IBD)
• Haemorrhoid banding, oesophageal variceal banding
• Stricture dilation
• Pancreatic cancer, bile duct stones, submucosal lesions – endoscopic
• ultrasound (EUS), fine-needle aspiration (FNA)

Dr Ooi takes pride in providing her patients with personalised, comprehensive care. Dr Ooi is Malaysian-born Chinese and is fluent in English, Cantonese, Mandarin and Malay.