1997-2003: Ph.D. in Biomedical Informatics, Columbia University, New York, NY, USA
1997-2000: M.Phil. in Biomedical Informatics, Columbia University, New York, NY, USA
1992-1994: M.S. in Public Health, National Yang-Ming University, Taipei, Taiwan.
1985-1992: M.D., School of Medicine, National Yang-Ming University, Taipei, Taiwan.

2013.07- present: Deputy Director-General, Centers for Disease Control, Taipei, Taiwan
2014.05- present: Academic Editor, PLOS ONE
2005.2- present: Adjunct Associate Professor, Institute of Biomedical informatics & Institute of Public Health, National Yang-Ming University, Taipei, Taiwan
2016.7- present: Board Member of Taiwan Drug Relief Foundation for Drug Hazards, Taipei, Taiwan
2018.1- present: Board Member of Taiwan Blood Services Foundation, Taipei, Taiwa
2006.10- 2013.07: Director, Epidemic Intelligence Center, Centers for Disease Control Taiwan, R.O.C
2005.2-2006.9: Deputy Director, Office of National Health Command Center, Centers for Disease Control Taiwan, R.O.C.
2003.8-2005.1: Associate Professor, Institute of Health Informatics and Decision Making, School of Medicine, National Yang-Ming University, Taipei, Taiwan
2003.8-2005.1 : Jointly Appointed Associate Professor, Institute of Bioinformatics, School of Life Science, National Yang Ming University, Taipei, Taiwan
2003.8-2005.1 : Jointly Appointed Associate Professor, Institute of Public Health, School of Medicine, National Yang Ming University, Taipei, Taiwan
2003.8-2005.1 : Jointly Appointed Associate Professor, Department of Social Medicine, School of Medicine, National Yang Ming University, Taipei, Taiwan
2002-2003: Lecturer, Institute of Health Informatics and Decision Making, National Yang-Ming University, Taipei, Taiwan
1999-2000: TA, Department of Medical Informatics, Columbia University
1997-2002: Graduate Research Assistant, Department of Medical Informatics, Columbia University
1994-2002: Lecturer, Department of Social Medicine, National Yang-Ming University, Taipei, Taiwan
1992-1994: TA, Department of Social Medicine, National Yang-Ming University, Taipei, Taiwan (TA for Introduction to Public Health and Medical Ethics)