Dr Calvin Ong is a surgeon with more than 15 years of experience, with a special clinical interest in colorectal and general surgery. He performs minimally invasive as well as advanced robotic surgery for both benign and malignant colorectal conditions such as inflammatory bowel disease, pelvic floor disorders, colorectal cancer, and hernia repair.
Dr Ong completed his Bachelor’s degree in Medicine and Surgery at the National University of Singapore (NUS), in 2008, and completed his Masters of Medicine (Surgery) at NUS in 2016. In the same year, he completed his advanced specialist training and became a fellow with the Royal college of surgeons of Edinburg.
Dr Ong was also awarded the Human Manpower Development Programme scholarship and spent a year at St Marks Hospital where he specialised in inflammatory bowel disease and pelvic floor disorders as part of his fellowship training in the United Kingdom. Upon his return to Singapore, he further developed his skills in Robotic Surgery on the Davinci Xi platform for both benign and malignant colorectal conditions which remains his main interest till this day.
Besides clinical duties, he has also been an active member of Singapore Colorectal Society since 2016 and was in the executive committee in 2022. Dr Ong is also a clinical lecturer for Yong Loo Lin School of Medicine since 2012 and been awarded the title of Clinical Assistant Professor with Duke NUS. He is a keen educator and won the role model clinical educator award in 2014. He was awarded the Gold Singapore Health Quality Award in 2022 and 2024 for his dedicated service in public health.