| Rank | Name |
| Chairman | Dr Tan Thai Lian |
| Vice-Chairman | Dr Angeline Seah |
| Honorary Secretary | Dr Lee Liang Tee |
| Members | Dr Anupama Roy Chowdhury |
| Dr Ng Shu Ee | |
| Dr Sze Yuen Lei | |
| Dr Yoon Peng Soon | |
| Co-opted Members | Dr Chew Aik Phon |
| Dr Dennis Seow Chuen Chai |
| Rank | Name |
| Chairman | Dr Tan Thai Lian |
| Vice-Chairman | Dr Angeline Seah |
| Honorary Secretary | Dr Lee Liang Tee |
| Members | Dr Ng Shu Ee |
| Dr Foo Swee Sen | |
| Dr Sze Yuen Lei | |
| Dr Christopher Lien Tsung Chien | |
| Co-opted Members | Dr Chew Aik Phon |
| Dr Dennis Seow Chuen Chai |
| Rank | Name |
| Chairman | Dr Christopher Lien Tsung Chien |
| Vice-Chairman | Dr Mark Chan Peng Chew |
| Honorary Secretary | Dr Lee Liang Tee |
| Members | Dr Melvin Chua Peng Wei |
| Dr Ee Chye Hua | |
| Dr Foo Swee Sen | |
| Dr Norhisham Bin Main | |
| Co-opted Members | Dr Reshma A Merchant |
| Dr Wong Sweet Fun | |
| Dr Chew Aik Phon |
| Rank | Name |
| Chairman | Dr Christopher Lien Tsung Chien |
| Vice-Chairman | Dr Mark Chan Peng Chew |
| Honorary Secretary | Dr Norhisham Bin Main |
| Members | Dr Melvin Chua Peng Wei |
| Dr Tan Thai Lian | |
| Dr Ee Chye Hua | |
| Co-opted Members | Dr Lee Liang Tee |
| Dr Wong Sweet Fun | |
| Dr Reshma A Merchant |
| Rank | Name |
| Chairman | Dr Pang Weng Sun |
| Vice-Chairman | Dr Seow Chuen Chai Dennis |
| Honorary Secretary | Dr Norhisham Bin Main |
| Members | Dr Chan Peng Chew Mark |
| Dr James Low Yiew Hock | |
| Dr Ee Chye Hua | |
| Dr Lien Tsung Chien Christopher |
| Rank | Name |
| Chairman | Dr Ding Yew Yoong |
| Vice-Chairman | Dr Tan Thai Lian |
| Honorary Secretary | Dr Dennis Seow Chuen Chai |
| Members | Dr Christopher Lien Tsung Chien |
| Dr Reshma Aziz Merchant | |
| Dr Norhisham Bin Main |
| Rank | Name |
| Chairman | Dr Ding Yew Yoong |
| Vice-Chairman | Dr Tan Thai Lian |
| Honorary Secretary | Dr Dennis Seow Chuen Chai |
| Members | Dr James Alvin Low Yiew Hock |
| Dr Christopher Lien Tsung Chien | |
| Dr Ee Chye Hua |
| Rank | Name |
| Chairman | A/Prof Philip Choo Wee Jin |
| Vice-Chairman | Dr Tan Thai Lian |
| Honorary Secretary | Dr Dennis Seow Chuen Chai |
| Members | Dr Lieu Ping Kong |
|
|
Dr Reshma Aziz Merchant |
| Dr James Alvin Low Yiew Hock | |
| Dr Carol Tan Yean Eng |
| Rank | Name |
| Chairman | Dr Philip Choo Wee Jin |
| Vice-Chairman | Dr Pang Weng Sun |
| Honorary Secretary | Dr Tan Thai Lian |
| Members | Dr Ding Yew Yoong |
|
|
Dr James Alvin Low Yiew Hock |
| Dr Ee Chye Hua | |
| Dr Christopher Lien Tsung Chien |