Dr. Yeoh practises as a Senior Consultant at the Division of Gastroenterology and Hepatology, National University Hospital (NUH).
His research interest is in enhancing the early detection of gastric and colorectal cancers. He is the Lead Principal Investigator of the Singapore Gastric Cancer Consortium, a national flagship research group, which aims to improve the outcomes for gastric cancer by early detection, improving treatment and advancing the understanding of gastric carcinogenesis. He has published over 180 peer-reviewed papers in international journals. He also chairs the National Colorectal Cancer Screening Committee of the Health Promotion Board, Ministry of Health, which recommends guidelines for the national colorectal screening programme in Singapore.
Dr. Yeoh received his MBBS (Bachelor of Medicine, Bachelor of Surgery) from NUS in 1987. He trained in internal medicine and gastroenterology at NUH. He is a Fellow of the Academy of Medicine, Singapore, Fellow of the Royal College of Physicians of London and Glasgow, and a member of the American Gastroenterology Association and American Society of Gastrointestinal Endoscopy. He has received several awards for his research work, including the Nishi-Takahashi Lectureship at the 9th International Gastric Cancer Conference in 2011, the National Medical Excellence Award as Outstanding Clinician Scientist from the Ministry of Health in 2013, and the Public Administration Medal (Silver) in 2016 for his contributions to medical education and healthcare.