Dr. Wang Yu Tien treats a wide range of gastrointestinal and liver conditions, including GERD, Helicobacter pylori infections, IBS, cirrhosis, and fatty liver disease. With a special focus on gastroesophageal reflux disease and irritable bowel syndrome, he performs specialized tests such as acid reflux monitoring, esophageal manometry, hydrogen breath tests, and intestinal transit studies. In addition to diagnostics, Dr. Wang carries out advanced endoscopic procedures like gastroscopy, colonoscopy, and polypectomy. As a Fellow of the Chapter of Gastroenterology at the Academy of Medicine, Singapore, and a long-serving Scientific Chair and Executive Committee Member of the Gastroenterological Society of Singapore since 2014, he actively contributes to advancing the field.