- Deputy Director General, National Health Insurance Administration, Ministry of Health and Welfare
- Director General, Mental Health Division, Ministry of Health and Welfare
- Director, Kunming Prevention and Treatment Center, Taipei City Hospital
- Deputy Director, Kunming Prevention and Treatment Center, Taipei City Hospital
- Attending Physician, Department of Addiction Medicine, Song-De District, Taipei City Hospital
- Resident Physician, Song-De District, Taipei City Hospital
- Intern Physician, Duke University Medical Center, USA
- Adjunct Associate Professor, Graduate Institute of Clinical Medicine, National Chung Hsing University
- Adjunct Assistant Professor, Graduate Institute of Epidemiology and Preventive Medicine, National Taiwan University
- Adjunct Attending Physician, Psychiatry Department, National Taiwan University Hospital
- Regular Member, College on Problem of Drug Dependence, USA
- Phi Beta Kappa Member, Johns Hopkins Bloomberg School of Public Health, USA
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