Dr Dennis Koh graduated from University of Nottingham, United Kingdom with a Bachelor in Medicine and Bachelor in Surgery (MBBS) as well as a Bachelor in Medical Science. He then furthered his medical education and embarked on his surgical training in Singapore. He obtained his Master of Medicine in Surgery from National University of Singapore in 2005.

Dr Koh proceeded to complete his advanced surgical training with Singapore General Hospital and became a fellow of the Royal College of Surgeons of Edinburgh in 2009. He was also admitted as a Fellow of the Academy of Medicine (Surgery) of Singapore in the same year. He was awarded the SingHealth Health Manpower Development Plan (HMDP) Award and furthered his training in Hôpitaux Universitaires de Genève (HUG), Switzerland.

Dr Koh was a consultant surgeon in the Department of Colorectal Surgery in Singapore General Hospital, one of the most progressive and comprehensive Colorectal Units in Singapore, before setting up his own private practice in 2016. He is also the current Clinical Governance Officer of Curasia Endoscopy Centre.

With a special interest in colorectal surgery, Dr Koh has performed numerous colon and rectal surgeries, both open and minimally invasive. To date, he has performed more than ten thousand endoscopic procedures. He believes that each surgery should be adapted and tweaked to each patient’s unique case and situation with minimal impact on the patient’s lifestyle which allows for better outcomes. He also believes that patient care lies not only in a good surgical outcome but also with good communication and information sharing with both the patients and their loved ones. He is a firm believer of providing adequate and accurate information to the patients to aid them to come to good informed decisions with regards to their health and treatments.

Besides his passion for clinical practice, Dr Koh firmly believes in the importance of training the next generation of surgeons. He held several teaching appointments including Assistant Professor with Duke-NUS Graduate Medical School and Clinical Senior Lecturer in Yong Loo Lin School of Medicine, National University of Singapore. As a core faculty member of the SingHealth General Surgery Residency Program, he was actively involved in residency teaching and surgical skills training. He conducted and trained medical students and surgical trainees in endoscopy and laparoscopic skills with the use of stimulation machines. He also conducted many animal and cadaveric workshops to teach both local and overseas surgical trainees and surgeons. He was consistently ranked highly by his medical students and surgical trainees for his outstanding teachings.