About Dr. A. B. John
  • Graduated University of Singapore in 1982
  • Attended Naval Diving Unit Republic of Singapore
  • Attended National Service from 1983 to 1984 (treating ENT diving related problems)
  • Became a Singapore Ministry of Health ENT Trainee in 1985
  • Trained at Singapore General Hospital (largest hospital in Singapore) from 1985-1989
  • Completed ENT Traineeship in 1989, obtained ENT Surgical Fellowship from Glasgow
  • 1989 to 1993 Managed skull base conditions along with neurologists and neurosurgeons at Tan Tock Seng Hospital (2nd largest hospital in Singapore), and sinus & nasal problems with the chest physicians & rheumatologists Awarded the ENT Rhinology (nose & sinus conditions) Ministry of Health S’pore
  • Training Fellowship in London in 1993. Subspecialized in endoscopic sinus surgery & surgery of the anterior skull base.
Studied under renowned skull base surgeon, Dr. Anthony Chessman, at Royal National ENT Institute, London & renowned endoscopic sinus surgeon, Dr Ian Mackay, at the Charing Cross & Brompton Hospitals, in London. Trained in open approaches & minimally invasive techniques of anterior skull base surgery & in functional and aesthetic nose surgery.

Appointed Head of Tan Tock Seng Hospital ENT Department from 1995 to 1998

Developed successful programs in Rhinology, Laryngology & Audiology, for the hospital.

Opened private practice in 1998 at Mount Elizabeth Medical Center & Hospital (largest private practice medical facility in Singapore).

Appointed Visiting Consultant ENT Services, Alexander Hospital w.e.f. 15th July 2006.


 Dr. John was previously holding the posts of:
  • ENT representative in the Medical Board of Mount Elizabeth Hospital.
  • Committee member & the private practice representative in the Singapore Society of Otolaryngology, Head & Neck Surgery.
  • Attended National Service from 1983 to 1984 (treating ENT diving related problems)
  • Committee member in the Academy of Medicine Singapore’s, Chapter of ENT Head & Neck Surgeons.
  • Co-Chairman, Medical Standards Review Committee for Parkway Hospitals (Mount Elizabeth, Gleneagles & East Shore Hospital), Singapore