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My goal is to provide holistic care to patients suffering from complex illnesses. No matter how difficult the problem, I commit to being a trusted partner in what is always a unique, daunting and deeply personal journey for each patient.


Meet Dr. Oliver Fisher

I am a specialist Upper Gastrointestinal, Hepatobiliary and General Surgeon based in Sydney, Australia. I work as a Consultant Surgeon at St George Hospital, Kogarah. 


Areas of Expertise

I specialise in complex upper gastrointestinal surgery including oesophago-gastric, hepatobiliary, pancreatic and bariatric surgery. I have broad special interests and expertise in cancerous and non-cancerous conditions that affect the oesophagus, stomach, liver, gallbladder and pancreas. Equally, I maintain a special interest in Fibrolamellar HCC and work closely with the world leading experts at Rush University Medical Centre in Chicago as well as the FibroFighters Foundation to help manage this rare liver cancer for the children and young adults that it affects in Australia.

I am passionate about and have specialised in the treatment of complex abdominal wall hernias, including those requiring reconstruction of the abdominal wall as well as all other forms of hernias. Whenever possible, I try to offer all treatments as laparoscopic (keyhole) or endoscopic procedures to facilitate an enhanced recovery after surgery. Having undergone advanced specialist training at St George Hospital including The St George Bariatric Centre of Excellence, currently one of Australia’s few centres of excellence for bariatric surgery, I also offer comprehensive treatments for obesity. I maintain strong research and teaching activities, allowing me to always incorporate newest data and evidence-based treatments into your care. 


Oesophagus, Stomach, Pancreas, Liver including fibrolamellar HCC, Other


Incisional hernias, recurrent hernias, groin hernias, gallbladder problems, endoscopy (gastroscopy/colonoscopy)


Weight-loss surgery including sleeve gastrectomy, gastric bypass (classic and mini), SADI-S, revisional bariatric surgery


Gastroscopy, Colonoscopy, interventional endoscopy


Please click here for an overview of recent and ongoing research projects as well as potential trial participation. 

Practice Areas
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