For bookings and enquiries, please call 02 9899 6800 (Dr Dev Samarasinghe) or 02 9899 6828 (Dr Stephen Oh, Dr Calvin Chan)

Open endoscopy access e-Referral

Dr Stephen Oh

Gastroenterologist and Hepatologist

Dr Stephen Oh is a gastroenterologist and hepatologist who specialises in the disorder of the gastrointestinal tract and liver. He is a consultant at Nepean Hospital, Norwest Private Hospital, Lakeview Private Hospital, Sydney Adventist Hospital and Campsie Day Surgery. Dr Oh completed his medical degree at University of New South Wales in 2004 and underwent medical training at Westmead Hospital, Royal North Shore and St.Vincent’s Hospital in Sydney. He was admitted as a fellow of the Royal Australasian College of Physicians in 2012. He then spent 2 years in the United States for an advanced endoscopy fellowship at Wake Forest Health, North Carolina and pancreatic cancer research fellowship at Virginia Mason Medical Center, Washington State, Seattle.

Dr Oh is highly skilled in gastroscopy, colonoscopy, endoscopic ultrasound (EUS), endoscopic mucosal resection and capsule endoscopy. He has particular interests in EUS, pancreatobiliary disease and gastrointestinal cancer. He is a member of the Gastroenterological Society of Australasia and American Gastroenterological Association. He has been actively involved in clinical research and published papers in the field of pancreatic cancer, EUS, general gastroenterology and hepatology.

Dr Oh is dedicated to delivering high quality patient care and effective communication with his patients.


Clanton J, Oh S, Kaplan SJ, Johnson E, Ross A, Kozarek R, Alseidi A, Biehl T, Picozzi VJ, Helton WS, Coy D, Dorer R, Rocha FG. Does mesenteric venous imaging assessment accurately predict pathologic invasion in localized pancreatic ductal adenocarcinoma? HPB (Oxford). 2018

Picozzi VJ, Oh SY, Edwards A, Mandelson MT, Dorer R, Rocha FG, Alseidi A, Biehl T, Traverso LW, Helton WS, Kozarek RA. Five-Year Actual Overall Survival in Resected Pancreatic Cancer: A Contemporary Single-Institution Experience from a Multidisciplinary Perspective. Ann Surg Oncol. 2017 Jun;24(6):1722-1730.

Oh SY, Irani S, Kozarek RA. Cystic Neoplasms of the Pancreas: Where Do We Stand? J Hepatol Gastroint Dis 2016; 2: 140

Jones JD, Oh SY, Clark C, Pawa R. A Bleeding Duodenal GIST Masquerading as Refractory Peptic Ulcer Disease. ACG Case Rep J 2016;3(4):e189

Oh SY, Edwards A, Mandelson MT, Hahn H, Alseidi A, Biehl T, Rocha FG, Kozarek RA, Helton WS, Picozzi VJ. Localized pancreatic cancer with positiveperitoneal cytolog as a sole manifestation of metastatic disease:  a single institution experience.  Am J Surg 2016 In Press.

Oh SY, Edwards A, Mandelson MT, Lin B, Dorer R, Helton WS, Kozarek RA, Picozzi VJ. Rare long-term survivors of pancreatic adenocarcinoma without curative resection. World J Gastroenterol. 2015 Dec 28;21(48):13574-81.

Oh SY, Irani S, Kozarek RA. What are the current and potential future roles for endoscopic ultrasound in the treatment of pancreatic cancer? World J Gastrointest Endosc. 2016 Apr 10;8(7):319-29.

Oh SY, Edwards A, Mandelson M, Ross A, Irani S, Larsen M, Gan SI, Gluck M, Picozzi V, Helton S, Kozarek RA. Survival and clinical outcome following endoscopic duodenal stent placement for
malignant gastric outlet obstruction : Comparison between pancreatic cancer and non-pancreatic cancer.
Gastrointest Endosc 2015 Sep;82(3):460-468.e2.

Oh SY, Kozarek RA. Management of the complications of endoscopic duodenal stent placement. Gastrointest Interv 2015;4:89–94.

Oh SY, Gilliam J, Conway JD. Successful treatment of Barrett’s esophagus with radiofrequency ablation in a patient with severe reflux esophagitis following fundoplication. Endoscopy 2014 May; 46(5):451.

Oh SY, Jellins JC, Kim BM, Stoita A, Williams D. EUS-guided cyst fluid analysis may not be so helpful after all: comparison of preoperative EUS evaluation with surgical pathology for pancreatic cystic lesions. J Gastroenterology and Hepatology 2012 27 (Suppl. 4)

Oh SY, Jellins JC, Kim BM, Stoita A, Williams D. It is safe to continue surveillance of pancreatic cystic lesions after baseline EUS evaluation. J Gastroenterology and Hepatology 2012 27 (Suppl. 4)

Oh SY, Feller R. Capsule endoscopy can be a valuable tool for the diagnosis of chronic radiation enteritis. J Gastroenterology and Hepatology 2012 27 (Suppl. 4)

Oh SY, Jones B, Fernando S. Interferon-a-induced microscopic polyangiitis in a patient with chronic hepatitis C infection. Med J Aust 2011 Oct 3; 195(7):385-6.

Oh SY, Hansen R, Pattullo V, Jones B. Hepatitis B e-antigen seroconversion is associated with female gender, older age and advanced fibrosis J Gastroenterology and Hepatology 2011 26 (Suppl. 4)

Oh SY, Kellow J, Bell C. Synchronous pyloric and rectal stricturing from metastatic breast cancer. J Gastroenterology and Hepatology 2011 26 (Suppl. 4)

Oh SY. Uncommon adverse effects of proton pump inhibitor. Aust Fam Physician 2011 Sep; 40(9):705-8.

Endoscopy Locations

Lakeview Private Hospital

17-19 Solent Circuit, Norwest NSW 2153 – Open in Google Maps

Norwest Private Hospital

11 Norbrik Dr, Bella Vista NSW 2153 – Open in Google Maps

Nepean Hospital

Derby St, Kingswood NSW 2747 – Open in Google Maps

Somerset Private Hospital

Suite 201/38 Somerset Street, Kingswood NSW 2747 – Open in Google Maps

Sydney Adventist Hospital

185 Fox Valley Rd, Wahroonga NSW 2076 – Open in Google Maps

Campsie Day Surgery

56-58 Campsie St, Campsie NSW 2194 – Open in Google Maps