Dr Ooi Choon Jin

33 years of experience



Consultation Fee

$150 and above


MBBS (Singapore), MRCP (UK), FRCP (Edinburgh), FAMS (Gastroenterology)

What I do

Dr Ooi Choon Jin provides clinical services, such as:
- Gastritis Treatment
- Liver Disease Treatment
- Gastroscopy
- Constipation Treatment
See more [ + ]- Colonoscopy
- Ulcerative
- Crohn's disease treatment
- Balloon assisted enteroscopy
- Capsule Endoscopy
- Ulcerative colitis
- Crohn’s disease
- Malabsorption
- Helicobacter pylori related disorders
- Gastroenterology
- Hepatology and nutrition

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Pick a clinic location & select time slot to make an appointment

Clinic Locations

CJ Ooi Gastroenterology Clinic
Gleneagles Medical Centre #10-02
6 Napier Road, S 258499

Dr Ooi Choon Jin
1 Farrer Park Station Road
#14-15 Connexion, S 217562
There are no appointments available for this week.

Professional Statement

Dr Ooi Choon Jin is Gastroenterologist practicing at Gleneagles. He received his MBBS from the National University of Singapore in 1989. He then attained MRCP from the Royal College of Physicians, United Kingdom in 1994 and FAMS - Fellowship of the Academy Medicine from Academy of Medicine, Singapore in 2001. Dr Ooi Choon Jin speaks English and Mandarin.

Dr Ooi Choon Jin is a fellow of the Royal College of Physicians, Edinburgh. From 1998 to 2000, he trained at the Gastrointestinal Unit at Massachusetts General Hospital/Harvard Medical School

His main areas of academic interest include ulcerative colitis, Crohn’s ... See more [ + ]disease, malabsorption and Helicobacter pylori related disorders. His clinical interests include all aspects of gastroenterology, hepatology and nutrition. He routinely performs diagnostic and therapeutic gastroscopy, colonoscopy, balloon assisted enteroscopy and capsule endoscopy.

Dr Ooi Choon Jin worked as Head of Gastroenterology and Hepatology Department at Singapore General Hospital from 2000-2012. He also served as Clinical Associate Professor at the Yong Loo Lin School of Medicine at National University of Singapore. Currently, he continues as Adjunct Associate Professor at the Duke-NUS Graduate Medical School. Since 2012, Dr Ooi Choon Jin is a Gastroenterologist at Gleneagles Medical Centre and a Visiting Consultant to the Inflammatory Bowel Disease Centre at Singapore General Hospital.

Dr Ooi Choon Jin has published in various journals such as the Journal of Gastroenterology and Hepatology, Pathology, Annals of Academic Medicine (Singapore), Singapore Medical Journal, Inflammatory Bowel Disease, Gastroenterology, Current Opinion in Gastroenterology and the International Journal of Radiation Oncology, Biology and Physics.

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Languages Spoken

English, Mandarin


National University of Singapore

Awards and Publications

Professional Positions and Memberships

Chairman of the Chapter of Gastroenterologists, Academy of Medicine Singapore
Adjunct Associate Professor, Duke-NUS Graduate Medical School
Formerly Head of Gastroenterology and Hepatology Department, Singapore General Hospital
See more [ + ] Formerly Clinical Associate Professor, Yong Loo Lin School of Medicine, National University of Singapore
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Accredited Hospitals

Gleneagles Hospital
Mount Elizabeth Hospital
Mount Elizabeth Novena Hospital
See more [ + ]Parkway East Hospital
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Insurances Accepted


Health Articles by Dr Ooi Choon Jin

FODMAPs - What are FODMAPs and how does a diet low in FODMAPs help Irritable Bowel Syndrome?

Irritable bowel syndrome (IBS) affects many. Diet, stress and hormonal factors can affect IBS. Many...