- 1964: Medical Doctor Mahidol University
- 1966: Diploma in Clinical Sciences in Eye Ear Nose & Throat Mahidol University
- 1969: Training in EENT Siriraj Hospital & Faculty of Medicine, Mahidol University
- 1969: Certificate in Re-constructive and Plastic Surgery University of Vienna, Vienna Austria
- 1969: Certificate of Micro-surgery of The Ear University of Vienna, Vienna
- 1969: Diploma in Oto-rhino-laryngology (DLO) University of Vienna, Austria
- 1969: Training with Certificate in Neuro-Otology University of Vienna, Austria
- 1970-1972: Training with Certificate in Neuro-Oto-audiology Institute of Laryngology & Otology & Nuffield Hearing Center- University of London, UK
- 1972: Diploma in Laryngology & Otoloty The Royal College of Physicians of London and Royal College of Surgeons of England University of London
- 1972: Thai Board of Proficiency in ORL - Thai Medical Council
- 1972: Training in Audiological Medicine Nuffield Hearing Center London,UK
- 1974: Certificate of Training in Neuro-Otology Ear Research Institute Los Angeles Foundation Los Angeles U.S.A.
- 1974: Training in Neuro-Otology - House Ear Institute, Los Angeles
- 1976: Fellow of International College of Surgeon (FICS 1976 )
- 1983: Training in Audiological Medicine University of Copenhagen, Denmark
- 1988: Training in Audiological Medicine, University of Toronto, Canada
- 1999: Clinical Professor in ORL, Mahidol University
- 1999: Professor in ORL, University Bureau Thailand
- 2009: Fellow of Royal College of Surgeon of London 2009 (FRCS)
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