Dr Oliver Cronin


Gastroenterologist & Interventional Endoscopist

Dr Oliver Cronin is a Gastroenterologist and Interventional Endoscopist. From low-risk cancer screening to high-risk complex endoscopic procedures, Oliver endeavours to provide dedicated, evidence-based, professional and compassionate care. He is passionate about precision medicine and individualised care. He is a firm believer in disease prevention and early detection.

Oliver has gained experience in some of the most eminent academic and clinical centres across the globe. His interventional expertise includes high-quality gastroscopy, colonoscopy and capsule endoscopy for the detection and effective endoscopic removal of pre-malignant polyps and early cancers. He is particularly proficient at bowel cancer screening (including positive FOBT) and risk stratification in high-risk populations (e.g. family history of polyps or cancer; polyposis syndromes). In addition, he is skilled in the management of upper gastrointestinal issues such as gastro-oesophageal reflux disease , Barrett’s oesophagus and treatment of achalasia. 

Oliver graduated with high-distinction and a research honours from James Cook University in 2012. He completed Basic Physician training at St Vincent’s Hospital and advanced Gastroenterology training at University Hospital Geelong, St Vincent’s Hospital and the Alfred Hospital.

He was selected for a highly competitive 2-year “Advanced Endoscopic Resection and Therapeutics” Fellowship at Westmead Hospital, under the mentorship of Professor Michael Bourke, a world-leading authority in Endoscopy. His sub-speciality training included minimally-invasive endoscopic resection techniques for the resection of early gastrointestinal cancers (endoscopic submucosal dissection).

Oliver was then selected for a prestigious Fulbright Future Scholarship to attend NYU Langone, an innovative, high-volume quaternary Endoscopy centre in New York (USA), under the mentorship of Professor Gregory Haber. NYU Langone is consistently ranked amongst the top 3 hospitals in the United States.

Oliver is completing a PhD at the University of Sydney with a focus on high quality, safe and effective endoscopy. He has published >50 original papers, reviews and abstracts in leading international, peer-reviewed journals and he has presented his work at both local and international conferences. The impact of his research has been recognised with a post-graduate NHMRC Scholarship. He is an affiliate Senior Lecturer at Deakin University.

Outside of work, Oliver enjoys spending time with his wife and 3 young daughters. He is a keen runner and has completed over 15 marathons and 2 ironman triathlons.

Sub-specialty summary:

  •      Gastroscopy, colonoscopy, capsule endoscopy
  •      Bowel cancer prevention
  •      Removal of large, complex polyps and early (localised) gastrointestinal cancers
  •      Barrett’s oesophagus, reflux, achalasia

Oliver has public appointments at Northern Hospital and University Hospital Geelong.

Dr Oliver Cronin works privately at GastroNorth and consults at our main rooms in Bundoora and also at Epping. He performs procedures at Epping Private Hospital and The Victorian Gut Centre in Melbourne’s North.

Research Publications

Referring clinicians can contact Dr Oliver Cronin to discuss referrals by phone on 9468 9700. Urgent appointments are available on request.