Dr Doreen Koay Siew Ching

Dr Doreen Koay Siew Ching is a gastroenterologist and physician with expertise in digestive system disorders, liver diseases, and advanced endoscopic procedures. She manages a wide range of gastrointestinal and hepatobiliary conditions including gastritis, acid reflux disease, liver disorders, inflammatory bowel disease, gastrointestinal bleeding, and colorectal conditions. With specialised international training in advanced endoscopic imaging and endoscopic resection techniques, Dr Doreen Koay Siew Ching is experienced in performing complex diagnostic and therapeutic endoscopic procedures aimed at early disease detection and minimally invasive treatment. Her clinical approach combines evidence-based digestive care, preventive health strategies, and personalised long-term disease management tailored to each patient’s needs. Dr Doreen Koay Siew Ching is committed to comprehensive patient-centred care while working closely with multidisciplinary teams to improve digestive health outcomes and quality of life for patients with acute and chronic gastrointestinal conditions. MBBCh, BAO (Ire) — Bachelor of Medicine, Bachelor of Surgery and Bachelor of the Art of Obstetrics, Ireland LRCP&SI — Licentiate of the Royal College of Physicians and Surgeons of Ireland Fellowship in Advanced Endoscopic Imaging & Endoscopic Resection (Australia)