- 1980 - Intern, Faculty of Medicine , Chiangmai University
- 1981-1984 - Residency Training, Department of Med., Chiangmai University
- 1985-1986 - Residency Training in Neurology , Siriraj Hospital Mahidol University
- 1986-1998 - Lecturer in Neurology , Department of Medicine , Chiangmai University
- 1998-2010 - Neurologist, Phayao Ram Hospital , Phayao
- 2015-present - Neurologist, Geriatric Medical Center , Chiangmai University