Dr Tan is a geriatrician by training. She has been involved in direct patient care across the entire continuum including acute hospitals as well as in the intermediate and long term care sector. She has also been active in the development of geriatric medicine services in Singapore where she headed Geriatric Medicine units in both Changi General Hospital and Singapore General Hospital.
As a policy maker, she was with the Ministry of Health, Singapore and held concurrent appointments in the Epidemiology and Disease Control, Integrated Health Services and Health Finance Divisions. She served as Deputy Director (Elderly and Disability Policy), Ministry of Community Development, Youth and Sports and worked on the Prime Minster Office (Ageing) portfolio. Under the Ageing Portfolio, she developed the Wellness Programme, a national programme to promote Active Ageing. She was part of the government led Ministerial Committee for Ageing team adopting Whole of government approach to ageing that included the built environment, housing, transport, health and social services. Her involvement as a policy maker included policy planning, service development, financing and licensing, regulation.
She is currently spearheading Active Ageing Programmes through The Good Life Medical Centre that partners seniors and their families and include preventive health screening, risk assessment, vaccination , health literacy and follow-up programmes for the middle agers.