Dr Chin has been a lecturer at the University of Singapore, and worked in the Departments of Medicine and Haematology, Singapore General Hospital in the 1970s. He was the founder doctor of DR. K. N. Chin & Associates in the 1980s and Balestier Medical Centre/HMI Belstier Hospital in the 1990s. Before joining StarMed, Dr Chin was a general practitioner with particular interest in Health Screening, Diabetes and Hypertension at Balestier Clinic & Health Screening Centre. Besides medical practice, Dr Chin is involved with his wife and children in Health Management International Limited (HMILtd) which is a listed Singapore-based healthcare service and education provider with medical and business activities in Singapore and Malaysia. Dr Chin is also the Singapore’s Ministry of Health-designated doctor for approval for Singapore citizens and permanent resident to use MediSave in Mahkota Medical Centre, Melaka and in Regency Specialist Hospital, Johor.