Prof Lee is currently the Deputy Group Chief Executive Officer, Regional Health System, SingHealth that seeks to enable the population in Eastern Singapore to keep well, get well and live well.  He also Chairs the Planning Committee for the upcoming Eastern General and Community Hospitals.  He was previously the Chief Executive Officer of Changi General Hospital, a 1000 bed acute teaching hospital.  Prior appointments included senior leadership positions in the Ministry of Health Singapore where he was involved in the strategic development and improvement of healthcare services as well as health regulation and finance.