Dr Teo is an Associate Professor of Medicine at the National University of Singapore. He graduated from the National University of Ireland (University College, Cork) and won the Aodan O Donnchada Memorial Prize for the best paediatric project and the P.F. Fitzpatrick Prize in Social and Preventive Medicine. He underwent internal medicine residency training at the University Hospitals of Cleveland (Case Western Reserve University), winning the Norman Gordon Award for being an outstanding medical resident. He subsequently graduated from the Cleveland Clinic Nephrology Fellowship training program, and remained as a Clinical Scholar in Nephrology undertaking clinical research training.

Besides being certified by the American Board on Internal Medicine in internal medicine and nephrology, he is also a Fellow of the American Society of Nephrology, member of the American College of Physicians, and American Society of Transplantation. Dr Teo's clinical and research interest is in intensive care nephrology and the renal support of the critically ill. In addition, he is involved in the long-term care of kidney transplant patients. His other research interests include the epidemiology of acute and chronic kidney failure and glomerular filtration rates.