June1985-March1991: M.D., Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand July1992- June1993: Pediatric Residency, Seton Hall University, Jersey City Medical Center July1993- June1996: Internal Medicine Residency, University of Medicine and Dentistry of New Jersey July1996-June1999: Cardiovascular Disease Fellowship, University of Medicine and Dentistry of New Jersey July 1999-June 2000: Electrophysiology and Cardiac Pacing Fellowship, University of Massachusetts July 2000 - April 2001: Clinical Instructor, University of Massachusetts Memorial Healthcare System April 2001-March 2002: Assistant Professor of Medicine, University of Massachusetts Memorial Healthcare System April 2002 – January 2003: Electrophysiologist, Pacific Rim Electrophysiology Research Institute Since February 2003: Clinical cardiac electrophysiologist, Faculty of Medicine, Ramathibodi hospital, Mahidol University, Bangkok, Thailand President APHRS 2020-2021