| Rank | Name |
| Chairman | Dr Jansen Koh Meng Kwang |
| Vice-Chairman | Dr Tan Geak Poh |
| Honorary Secretary | Dr Chai Gin Tsen |
| Members | Dr Adrian Kee |
| Dr Alvin Ng Choon Yong | |
| Dr Sean Loh Chee Hong | |
| Dr Tan Gan Liang | |
| Co-opted Members | Dr Andrew Li Yunkai |
| Dr Leow Leong Chai |
| Rank | Name |
| Chairman | Dr Phua Ghee Chee |
| Vice-Chairman | Dr Noel Stanley Tay Wey Tut |
| Honorary Secretary | Dr Tan Geak Poh |
| Members | Dr Jansen Koh Meng Kwang |
| Dr Benjamin Ho | |
| Dr Chai Gin Tsen | |
| Dr Law John Lik Muk |
| Rank | Name |
| Chairman | Dr Phua Ghee Chee |
| Vice-Chairman | Dr Noel Stanley Tay Wey Tut |
| Honorary Secretary | Dr Tan Geak Poh |
| Members | Dr Jansen Koh |
| Dr Benjamin Ho | |
| Dr Chai Gin Tsen | |
| Dr Law John Lik Muk |
| Rank | Name |
| Chairman | Dr Augustine Tee Kim Huat |
| Vice-Chairman | Dr Phua Ghee Chee |
| Honorary Secretary | Dr Noel Stanley Tay Wey Tut |
| Members | Dr John Abisheganaden |
| Dr Hui Kok Pheng | |
| Dr Khoo See Meng | |
| Dr Law John Lik Muk | |
| Co-opted Members | Dr Tan Geak Poh |
| Dr Yap Kim Hoong |
| Rank | Name |
| Chairman | Dr Augustine Tee Kim Huat |
| Vice-Chairman | Dr Phua Ghee Chee |
| Honorary Secretary | Dr Noel Stanley Tay Wey Tut |
| Members | Dr John Abisheganaden |
| Dr Hui Kok Pheng | |
| Dr Khoo See Meng | |
| Dr Law John Lik Muk |
| Rank | Name |
| Chairman | Dr John Abisheganaden |
| Vice-Chairman | Dr Loo Chian Min |
| Honorary Secretary | Dr Pek Wee Yang |
| Members | Dr Goh Soon Keng |
| Dr Augustine Tee Kim Huat | |
| Dr Kong Po Marn |
| Rank | Name |
| Chairman | Dr John Abisheganaden |
| Vice-Chairman | Dr Loo Chian Min |
| Honorary Secretary | Dr Pek Wee Yang |
| Members | Dr Goh Soon Keng |
| Dr Augustine Tee Kim Huat | |
| Dr Kong Po Marn |
| Rank | Name |
| Chairman | Dr Alan Ng Wei Keong |
| Vice-Chairman | Dr Loo Chian Min |
| Honorary Secretary | Dr Pek Wee Yang |
| Members | Dr Khoo Kay Leong |
|
|
Dr Azman Johan |
| Dr Raghuram Jagadesan | |
| Dr Cheong Tuck Hong |
| Rank | Name |
| Chairman | Dr Alan Ng Wei Keong |
| Vice-Chairman | Dr Loo Chian Min |
| Honorary Secretary | Dr Pek Wee Yang |
| Members | Dr Hui Kok Pheng |
|
|
Dr Khoo Kay Leong |
| Co-Opted Members | Dr Azman Johan |
| Dr Cheong Tuck Hong |