Tiến sĩ Y khoa, Đại học Khonkaen, Thái Lan, 1993

Certificate of fellowship of Pain Management, Vanderbilt University, USA

Diploma of Licentiate of the Royal College of Physicians, Membership of the Royal Colleges of Surgeons, Royal College of Physicians and Royal College of Surgeons of London (England)

Postdoctoral fellowship in Neurogastroenterology and motility

Graduate Diploma in Clinical Sciences (Radiology), Chulalongkorn University,1993

Research Fellow in Vascular Surgery, SUH NHS Trust, Southampton, UK