| Name | College | Chapter | Registered Specialty | |
|---|---|---|---|---|
| Si-Hoe Cheng Kit | College of Radiologists | Chapter of Diagnostic Radiologists | Diagnostic Radiology | |
| Si-Hoe Kok Soon | College of Dental Surgeons | Chapter of Periodontists | Periodontics | |
| Sim Li Ping | College of Psychiatrists | Psychiatry | ||
| Sim Tiong Peng | College of Emergency Physicians | Emergency Medicine | ||
| Sim Richard | College of Surgeons | Chapter of General Surgeons | General Surgery | |
| Sim Song Teck, Roland | College of Surgeons | Chapter of Otorhinolaryngologists, Section of Facial Plastic and Reconstructive Surgery | Otorhinolaryngology | |
| Sim Wee Kiat | College of Dental Surgeons | Chapter of Orthodontists | Orthodontics | |
| Sim Peng Chuan, Timothy | College of Dental Surgeons | Chapter of Endodontists | Endodontics | |
| Sim Kah Ming | College of Anaesthesiologists | Chapter of Intensivists | Anaesthesiology, Intensive Care Medicine | |
| Sim Hong Gee | College of Surgeons | Chapter of Urologists | Urology | |
| Sim Kang | College of Psychiatrists | Psychiatry | ||
| Sim Poh Choo, Christina | College of Dental Surgeons | Chapter of Prosthodontists | Prosthodontics | |
| Sim Han Jen, Daniel | College of Ophthalmologists | Ophthalmology | ||
| Sim Kwang Yong, Christopher | College of Dental Surgeons | Chapter of Prosthodontists | Prosthodontics | |
| Sim Sze Keen | College of Paediatrics and Child Health | Paediatric Medicine | ||
| Sim Guat Bee Irene | College of Dental Surgeons | Chapter of Endodontists | Endodontics | |
| Sim Xiangrong Bryan | College of Ophthalmologists | Ophthalmology | ||
| Sim Siam Wee | College of Surgeons | Chapter of Paediatric Surgeons | Paediatric Surgery | |
| Sim Ming Ann | College of Anaesthesiologists | Anaesthesiology | ||
| Sim Khung Peng Shaun Sebastian | College of Ophthalmologists | Ophthalmology | ||
| Sim Soon Phang Allen | College of Surgeons | Chapter of Urologists | Urology | |
| Sim Tiong Beng | College of Emergency Physicians | Section of Geriatric Emergency Medicine | Emergency Medicine | |
| Sin Yoong Kong, Kenny | College of Surgeons | Chapter of Cardiothoracic Surgeons | Cardiothoracic Surgery | |
| Sin Gwen Li | College of Psychiatrists | Section of Neuropsychiatry, Chapter of Sleep Medicine Physicians | Psychiatry | |
| Kijja Sindhvananda |