Doctor's Profile

Professional Qualifications
MBBS (Singapore),
M Med (Internal Medicine),
MRCP (UK),
PhD (Sheffield),
FAMS (Gastroenterology), FRCP (London & Glasgow)

Gastroenterologist and Physician

Dr Gwee Kok Ann

Adjunct Assistant Professor of Medicine
National University of Singapore

Gwee Kok Ann, MBBS, FAMS (Gastroenterology), FRCP, PhD, practices at Gleneagles Hospital. He obtained his medical degree from National University of Singapore in 1985, completed his gastroenterology training at National University Hospital, Singapore, undertook further training in UK and Canada, and was awarded a PhD from University of Sheffield for his thesis on Post-infectious IBS.

“No matter your digestive concern, we provide thorough evaluations and a wide range of treatments.”

Doctor's Profile & History

Dr Gwee is a leading authority on irritable bowel syndrome (IBS) and constipation, being the lead author of position papers on IBS, use of probiotics for digestive disorders, dyspepsia and constipation. He was a member of the Rome Committee that publishes international guidelines for research and management of functional GI disorders, past president of the IBS Support Group (a patient self-help group), the ANMA (an Asian expert panel organisation dedicated to the science and practice of neurogastroenterology and motility), and recipient of the Rome Foundation Research Award 2014.

He is also Adjunct Associate Professor of Medicine at the National University of Singapore. Professor Gwee has international publications on the role of probiotics in clinical management, post-infectious IBS, the roles of melatonin, sleep disturbance and gluten sensitivity in IBS, endoscopic evaluation of gastro-esophageal reflux disease, and the effect of Helicobacter pylori treatment in dyspepsia. In addition to the management of stomach, liver and bowel disorders, Dr Gwee provides expertise in the management of dyspepsia, indigestion, gas related complaints, bowel habit training and dietary management of food intolerance, refractory GERD and H pylori infection, and small intestinal bacterial overgrowth. His specific hepatology interests are the management of fatty liver and hepatitis E.

Our Values

Caring for Your Digestive Health, Every Step of the Way

From diagnosis to treatment, we guide you through your journey to better digestive health.

Compassionate Care

We treat every patient with empathy, ensuring a supportive and respectful experience throughout their healthcare journey.

Excellence in Treatment

We are committed to delivering the highest standard of care, using advanced technology and evidence-based practices for optimal outcomes.

Patient-Centered Approach

We prioritise each patient's unique needs and preferences, creating personalised treatment plans that promote their long-term health and well-being.

Our Team

Meet Our Doctors

Dr Calvin Koh

Gastroenterologist and Physician

Dr Webber Chan

Gastroenterologist and Physician

Dr Roland Chong

Gastroenterologist and Physician

Dr Lui Hock Foong

Gastroenterologist and Physician

FAQs

Frequently Asked Questions

An endoscopy is a minimally invasive procedure where a thin, flexible tube with a camera is used to examine the digestive tract. It is often recommended to diagnose or monitor conditions like acid reflux, ulcers, or abnormal growths.
Before a colonoscopy, you will be given detailed instructions, which typically include a liquid diet the day before and taking a prescribed laxative to empty the colon for a clear view during the procedure.
Most gastroenterology procedures, like endoscopy and colonoscopy, are performed with sedation, ensuring you remain comfortable and pain-free throughout the process. Some patients may experience mild discomfort afterward, but recovery is typically quick.
We work with a wide range of insurance providers to ensure that our patients receive the care they need without financial concerns. If you’re unsure about your coverage, our team is happy to assist you in confirming your plan's benefits.

Visit Us

The Gastroenterology Group Clinics

Gleneagles Hospital Annexe Block

Phone Number

Mt Elizabeth Novena Hospital Medical Centre

Phone Number

Mt. Alvernia Medical Centre A

Phone Number

Parkway East Medical Centre

Phone Number