| Name | College | Chapter | Registered Specialty | |
|---|---|---|---|---|
| Joethy Janna | College of Surgeons | Chapter of Plastic, Reconstructive and Aesthetic Surgeons | Plastic Surgery | |
| Johan Azman | College of Physicians | Chapter of Respiratory Physicians, Chapter of Intensivists | Respiratory Medicine, Internal Medicine | |
| John Allumootil Benjamin | College of Surgeons | Chapter of Otorhinolaryngologists | Otorhinolaryngology | |
| John Surej B | College of Psychiatrists | Psychiatry | ||
| John K. S. Woo | ||||
| John Crowe | ||||
| Rayford Scott Jones | ||||
| Jong Khi Min, Winston | College of Anaesthesiologists | Chapter of Intensivists | Anaesthesiology, Intensive Care Medicine | |
| Jong, Michelle | College of Physicians | Chapter of Endocrinologists | Endocrinology | |
| Josefina R. Almonte MD | ||||
| Joseph Roy | College of Paediatrics and Child Health | Chapter of Neonatologists | Paediatric Medicine, Neonatology | |
| Joseph Vijeyakaran Thuraisingam | College of Surgeons | Chapter of Paediatric Surgeons | Paediatric Surgery | |
| Joseph CY Chan | ||||
| Joshi Ashutosh | College of Anaesthesiologists | , Chapter of Pain Medicine Physicians | Anaesthesiology | |
| Juan Sze Joo | College of Emergency Physicians | Section of Emergency Ultrasound | Emergency Medicine | |
| Juay Kang Hng Lester | College of Physicians | Chapter of Dermatologists | Dermatology | |
| Julianah Bte Abu | College of Obstetricians and Gynaecologists | Obstetrics & Gynaecology | ||
| JY Pillay | ||||
| Kaan Sheung Kin | College of Dental Surgeons | Chapter of Orthodontists | Orthodontics | |
| Khadijah Binti Abdul Kader | College of Paediatrics and Child Health | Chapter of Neonatologists | Paediatric Medicine, Neonatology | |
| Dato' Khalid Kadir | ||||
| Fareed Husain Yusuf Kagda | College of Surgeons | Chapter of Orthopaedic Surgeons | Orthopaedic Surgery | |
| Kalaiselvan Karthigaiyan | College of Physicians | Chapter of General Physicians | Internal Medicine | |
| Kalimuddin Shirin | College of Physicians | Chapter of Infectious Disease Physicians | Infectious Diseases | |
| Kalaiyarasi Kaliyaperumal | College of Physicians | Chapter of Gastroenterologists | Gastroenterology |