Dr Koo Chieh Sian obtained his medical degree (MBBS) from King's College London in 2015 and subsequently obtained his Membership of the Royal College of Physicians (MRCP, UK) in 2018. He was later certified by the Specialist Accreditation Board of Singapore as a Gastroenterologist in 2021.
Dr Koo is currently an Associate Consultant in the Division of Gastroenterology and Hepatology in National University Hospital.
He is proficient in diagnostic and therapeutic endoscopy, and also has a keen interest in advanced endoscopic procedures such as endoscopic retrograde cholangiopancreatography (ERCP).