Dr Cheng Jun is a gastroenterologist based at Mount Elizabeth Hospital in Singapore, with a strong focus on advanced procedures such as endoscopic ultrasound and ERCP. He brings extensive experience from his previous roles as a consultant gastroenterologist and hepatologist at Singapore General Hospital and as a medical advisory board member at Mount Elizabeth Hospital. Dr Cheng has held several leadership positions, including president of the Gastroenterological Society of Singapore and vice-president of the World Organization of Gastroenterology. He actively contributes to medical education by leading live endoscopy workshops and mentoring junior gastroenterologists.