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A/Prof Geoff Kohn


A/Prof Geoff Kohn

General Surgery, Upper Gastrointestinal Surgery, Weight Loss Surgery, Obesity & Bariatrics, Bariatric Surgery

Mr. Geoff Kohn, is an Upper Gastrointestinal and Bariatric Surgeon.

Geoff focusses on the management of gastro-oesophageal reflux disease, and disorders of the oesophagus and stomach, including cancer, achalasia and gastroparesis.


Geoff obtained his medical degree from Monash University and his Australian qualifications in Surgery in 2007. He then undertook two clinical fellowships in surgical units in the United States, first in laparoscopy and advanced gastrointestinal surgery at the University of North Carolina, and then in oesophageal surgery at the University of Southern California. As a faculty member of both these universities, he provided advanced management of upper gastrointestinal disease to his patients with an emphasis on minimally-invasive surgery. In 2010, he was awarded a Masters in Surgery qualification from Monash University and in 2014 he was awarded Fellowship of the American College of Surgeons.

Geoff also has a keen interest in academic surgery, with positions on multiple international surgical committees. He publishes regularly in the world-wide surgical literature and has received internationally recognised awards for his research including best fellow’s paper at the prestigious DDW/SSAT meeting. View the latest list of Mr Kohn’s research publications here .

He is an Adjunct Senior Lecturer in Surgery at Monash University and the immediate past-President of the Australasian Neurogastroenterology and Motility Association. He is also Co-Chair of the SAGES Guidelines Committee and a member of the ISDE Guidelines Committee.

Geoff is director of the MUGISG oesophageal physiology laboratory performing pH and impedance studies and high-resolution oesophageal manometry.

Particular Areas of Clinical Interest

  • Cancers of the oesophagus and stomach
  • Assessment and management of oesophageal function and disease
  • Management of gastro-oesophageal reflux disease (GORD)
  • Advanced endoscopic procedures including the POEM procedure for achalasia and G-POEM for gastroparesis
  • Hiatal hernias
  • Bariatric (weight loss) surgery for obesity – sleeve gastrectomy, gastric bypass and Orbera intragastric balloon
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is available at

Knox Private Hospital


262 Mountain Hwy , Wantirna 3152

Holmesglen Private Hospital


490 South Road , Moorabbin 3189