Dr Ng graduated from the National University of Singapore in 1998. He received his training in Internal Medicine at Tan Tock Seng Hospital, National University Hospital, Singapore General Hospital and Changi General Hospital. He attained Membership of the Royal College of Physicians of the United Kingdom in 2003. He subsequently underwent Advanced Specialist Training in Renal Medicine at Tan Tock Seng Hospital and obtained Specialist accreditation in Renal Medicine from the Ministry of Health & Singapore Medical Council in 2007.
He was awarded the Health Manpower Development Plan Fellowship where he spent a year at Princess Alexandra Hospital in Brisbane, Australia focusing on recent advances in Haemodialysis care including home haemodialysis and nocturnal haemodialysis. He was conferred Fellowship of the Royal College of Physicians of Edinburgh in 2009 and Fellowship of the Academy of Medicine, Singapore in 2010.
He is active in the promotion of Nephrology in Singapore and was in the Executive Committee of the Singapore Society of Nephrology from 2008 to 2016. He served as Honorary Secretary of the Singapore Society of Nephrology from 2009 to 2012.
He started his private practice at Gleneagles Medical Centre and Mount Elizabeth Novena Specialist Centre in 2012, specialising in the evaluation and treatment of various kidney disorders. He is currently also the medical director of multiple dialysis centres in Singapore.