Dr Calvin Koh
Gastroenterologist and Hepatologist, Singapore | MBBS, MMed (Int Med), MRCP (UK), FAMS, FRCP
Specialist in Gastroenterology and Hepatology at
Gastroenterologist and Physician
The Gastroenterology Group provides evidence-based assessment of digestive and liver diseases. Dr Koh was formerly Senior Consultant and Director of Endoscopy at National University Hospital (NUH).
Conditions Treated
01
Acid Reflux & GERD
Chronic reflux of stomach acid into the esophagus, leading to heartburn and potential long-term damage to the esophageal lining.
02
Gastritis & H. pylori
Inflammation of the stomach lining, often caused by infection with Helicobacter pylori bacteria, leading to abdominal discomfort.
03
Peptic Ulcer Disease
Open sores in the stomach or duodenum lining, typically caused by H. pylori infection or long-term use of non-steroidal anti-inflammatory drugs (NSAIDs).
04
Irritable Bowel Syndrome
A functional gastrointestinal disorder characterized by abdominal pain and altered bowel habits without a specific structural cause.
05
Inflammatory Bowel Disease
Chronic disorders including Crohn's disease and ulcerative colitis, involving inflammation of the digestive tract lining.
06
Colorectal Cancer
Abnormal growth of cells in the colon or rectum, which can lead to the formation of tumors and potentially spread to other parts of the body.
Diagnostic & Therapeutic Procedures
Specialist-led clinical interventions and diagnostic assessments for digestive and liver health.
Gastroscopy
A flexible tube with a camera is passed through the mouth to examine the esophagus, stomach, and duodenum for abnormalities or bleeding.
Colonoscopy
A flexible tube with a camera is passed through the anus to examine the large intestine and rectum for polyps, inflammation, or cancer.
Endoscopic Ultrasound (EUS)
A specialized endoscope with an ultrasound probe is used to create detailed images of the digestive tract walls and surrounding organs.
ERCP
Endoscopic Retrograde Cholangiopancreatography is a procedure to diagnose and treat bile duct and pancreatic diseases.
Small Bowel Enteroscopy
A specialized endoscope is used to examine the small intestine, which is difficult to reach with conventional methods.
Video Capsule Endoscopy
A small capsule is swallowed to capture images of the digestive tract lining, providing a comprehensive view of the small intestine.
Liver Assessment
Diagnostic procedures including ultrasound and biopsy to evaluate liver health and diagnose conditions like hepatitis or cirrhosis.
Gleneagles Hospital
6A Napier Road, Suite #05-37, Singapore 258500
Tel: (65) 6476 7555
Mount Elizabeth Novena
38 Irrawaddy Road, #07-27, Singapore 329563
Tel: (65) 6970 5487
Mount Alvernia Hospital
Medical Centre A, 820 Thomson Road, #02-08, Singapore 574623
Tel (65) 6322 7529