• Chair man Department of Neurology.

• Cerebrovascular disease
• Pain disorders
• Vertigo

• MD(1975), Department of Medical Science, National Defense Medical Center.

• (1975~1980)Resident and chief Resident, Neuro-Psychiatry Department, Taipei Veterans General Hospital.
• (1980~1983) Attending Doctor, Neuro-Psychiatry Department, Taipei Veterans General Hospital.
• (1983~2011)Chief, Neurology division of Internal Medicine. Department, Far eastern Memorial Hospital.
• (1996~2001) Chair, Department of Internal Medicine and Chief, Neurology division of Internal Medicine Department, Far eastern Memorial Hospital.
• (2011~2017/02)Vice Chair, Department of Internal Medicine, Far eastern Memorial Hospital.
• (2017/02~)Chair man Department of Neurology, Far eastern Memorial Hospital.