- 1986 - 1991Ph.D., Internal Medicine, College of Medicine,
Seoul National University
- 1982 - 1986M.S., Internal Medicine, College of Medicine,
Seoul National University
- 1976 - 1982M.D., Medicine, College of Medicine,
Seoul National University
- 2023 – Professor, Division of Pulmonary Medicine,
Gangbuk Samsung Hospital
- 2022 – Emeritus Professor,
Sungkyunkwan University
- 2021President, Korean Academy of Tuberculosis
and Respiratory Disease
- 2021 – 2023Honorary President, Samsung Medical Center
- 2015 – 2021President & CEO, Samsung Medical Center
- 2011 – 2012Dean, School of Medicine, Sungkyunkwan University
- 1997 – 2022Professor, School of Medicine,
Sungkyunkwan University
- 1994 – Consultant Physician, Pulmonary Division,
Samsung Medical Center
- 1991 – 1993Research Fellow, Department of Thoracic
Medicine, National Heart and Lung Institute, UK
- 2021Yuhan Academic Award, Korean Academy of
Tuberculosis and Respiratory Disease
- 2015Commendation, President of Korea
- 2012Samsung Proud People Awards, Samsung Group
- 2009Commendation, Ministry of Health and Welfare
- 1988Commendation, Presidential Security Service Chief