Dr Reuben Wong

Dr Reuben Wong

Clinical Interest:

Gut Motility, Functional GI Disorders, Gut Microbiome

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Dr Reuben is a gastroenterologist and founding partner of gutCARE. He also serves as an Associate Professor (Adjunct) at NUS and Visiting Consultant at the National University Hospital. 

Dr Reuben obtained his MBBS from the National University of Singapore and served full-time in the public sector for 18 years. He is a Fellow of the Academy of Medicine and Fellow of the Royal College of Physicians. Dr Reuben also stands amongst a handful of gastroenterologists from Asia to be conferred a Fellowship by the American Gastroenterological Association. 

A proponent of patient advocacy, he was President of the national IBS Support Group for three terms and remains an advisor. Dr Reuben also gives back to the community, serving on the board of the St Andrew’s Nursing Homes and Home for the Aged. He is active in church service and is blessed with a loving wife and family of four growing kids.


English, Mandarin, Bahasa Indonesia & Melayu, Hakka, Hokkien and Cantonese

Clinical Expertise

Dr Reuben has sub-specialty interests in reflux and swallowing disorders, Irritable Bowel Syndrome (IBS), gut microbiota, chronic constipation/diarrhea and endoscopy quality. He pursued sub-specialty training at the University of North Carolina on a MOH HMDP Award. Upon return, he helmed the Functional Gastroenterology service at NUH. As Senior Consultant and Clinical Director of the Gastrointestinal Motility Laboratory, Dr Reuben performed High Resolution Manometry in Singapore, enabling new insight into oesophageal and anorectal disorders.

Dr Reuben is a proponent of gut cancer screening, having set up quality and research programs in colorectal cancer screening. He believes in the role of the microbiome, and was part of the team that performed Singapore’s first Fecal Microbiota Transplant.

As a key opinion leader, Dr Reuben sits on medical advisory boards and national committees. Internationally, he is actively involved in drafting the new language for both upper and lower gut motility testing, and sits on both the International Anorectal Physiology Workgroup and the Esophageal Chicago IV Committee. He was in the SAGES POEMS guidelines workgroup, and is co-chair on the Rome V Chapter Committee, writing the new global guidelines and setting the standard for the treatment of Functional Gut disorders.

Awards & Research
  • Dr Wong believes that clinical practice should be evidence-based. He has authored numerous peer-reviewed publications and book chapters that have influenced the practice of medicine, and is regularly invited as faculty to speak and chair sessions at international scientific meetings and workshops. 
  • Dr Wong’s research has garnered many awards, amongst which are multiple Investigator Awards , the NUHS Leadership in Academic Medicine and the MOH National Quality Improvement awards.
  • In the realm of clinical practice, Dr Wong has received the National Service Excellence (Gold), NUHS Sunny-Side and two Long Service awards. 
  • In recognition of service to the nation and the SAF, Dr Wong had been awarded both the Long Service and Good Service Medals, and received the Commanding Officer’s Medal. 
  • In recognition of excellence in community service, Dr Wong has received the SMA Medical Society award, the AIA National Achievement and the Rotary Club of Singapore West Excellence Awards.
Teaching Experience
  • As an Associate Professor, Dr Reuben is involved in pedagogy at multiple levels.
  • He was Director Undergraduate education for gastroenterology, and continues teaching as clinical lecturer and tutor with both the departments of Medicine and Physiology at NUS.
  • For specialists-in-training, he set-up the NUH IBS Clinic where he mentored residents, registrars and was supervisor to psychology MA and PhD students.
  • At the postgraduate level, Dr Reuben actively runs international teaching webinars is the director of GIMotility, Asia’s pioneering hands-on neuromotility course.
  • A proponent of patient education, Dr Reuben contributes media articles and shares about gut health on radio and television.