Dr Lim Pui San is the Family Physician Principal Staff at NHG Toa Payoh Polyclinic. She graduated from the University of Glasgow with an MBChB in 1992 and completed postgraduate training in Family Medicine in 2005. She is accredited by the Family Physicians Accreditation Board as a Family Physician.

Dr Lim has clinical interest in treating chronic patients with multiple co-morbidities and needs as well as a special interest in patient safety and clinical quality assurance. She serves as an examiner for the Yong Loo Lin School of Medicine National University of Singapore Master of Nursing postgraduate examinations and is a faculty member of the Institute of Healthcare Quality, National Healthcare Group.