- Internal Medicine Resident, Faculty of Medicine, Chiang Mai University ; 1991-1995
- Cardiology Fellow, Cardiology Unit, Siriraj Hospital, Mahidol University ; 1995-1997
- Clinical and Interventional Cardiologist, Special Medical Service Center, Chaing Mai University ; 1998-2003
- Consulting Interventional Cardiologist, Heart Center, Chiang Mai University; 1998-2003
- Clinical and Interventional Cardiologist, Chiang Mai Ram Heart Center, Chiang Mai Ram Hospital ; 2003- present
- Director, Chiang Mai Ram Heart Center, Chiang Mai Hospital ; 2005-present