Prof. Justin C.Y. Wu is a Hong Kong gastroenterologist, medical educator, and health systems leader. He holds the positions of Associate Dean (Health Systems) of CUHK Medicine and Professor in the Division of Gastroenterology & Hepatology at The Chinese University of Hong Kong (CUHK). Internationally recognized for his expertise in functional gastrointestinal disorders, gastroesophageal reflux disease, and integrative Chinese–Western medicine, he is also a driving force behind hospital and health system innovation.