2019 Diploma, Member of the Royal College of Physicians and Surgeons of Glasgow, UK

2005 Diploma of Surgical Oncology, the Royal College of Surgeons of Thailand

2003 Certificate of Family Medicine, The Royal College of family Physicians of Thailand

1997 Certificate a Course Practical Microsurgery, The Canniesburn Regional Plastic Surgery Unit Edinburgh UK

1998-1989 Head & Neck Surgical Oncology, M.D. Anderson Cancer Center, University of Texas at Houston USA

1982 Diploma Thai Board of Surgery, Siriraj Hospital

1982 Certificate of Medical Science (Surgery), Siriraj Hospital

1977 Medical Doctor, Siriraj Hospital