| 2021.01-2022.01 |
Superintendent, Taipei Veterans General Hospital, Taichung, Taiwan |
| 2015.01-2021.01 |
Superintendent, Taichung Veterans General Hospital, Taichung, Taiwan |
| 2019.04-present |
Executive Audit of Board, Diabetes Association of the Republic of China (Taiwan) |
| 2017.07-present |
Executive Audit of Board, Taiwanese Association of Diabetes Educators (TADE) |
| 2018.01-present |
Executive committee, International Diabetes Federation Western Pacific Region (IDF WPR) |
| 2006.01-present |
Adjunct Professor of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan |
| 2001.08-present |
Adjunct Professor of Medicine, National Chung-Shin University, Taichung, Taiwan |
| 2000.07-present |
Adjunct Professor of Medicine, National Defense Medical Center, Taipei, Taiwan |
| 2016.01-2017.12 |
Chair, International Diabetes Federation Western Pacific Region (IDF WPR) |
| 2013.04-2019.04 |
President, Diabetes Association of the Republic of China (Taiwan) |
| 2012.01-2015.01 |
Deputy Superintendent, Taichung Veterans General Hospital, Taichung, Taiwan |
| 2006.08-2012.07 |
Chairman, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan |
| 2005.07-2011.07 |
President, Taiwanese Association of Diabetes Educators (TADE) |
| 2001.12-2005.12 |
Chairman, Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan |
| 1996.03-2001.11 |
Director, Division of Endocrinology and Metabolism, Taichung Veterans General Hospital, Taichung, Taiwan |
| 1987.05-1989.04 |
Postdoctoral Clinical Research Fellow, Gerontology and Endocrinology, Stanford University Medical Center, Stanford, California, USA |