2014.10 – Present

CEO, MD Healthcare Inc.

2014 – 2015

Director, Ewha Institute of Convergence Medicine,
Ewha Womans University Medical Center

2006 – 2014

Professor, Department of Life Science, Pohang University of Science and Technology (POSTECH)

1999 – 2006

Professor, Department of Internal Medicine, Seoul National University College of Medicine

1995 – 1997

Fellow, Division of Allergy and Clinical Immunology in Internal Medicine Department, Seoul National University Hospital

1993 – 1997

MS & PhD, Seoul National University College of Medicine

1991 – 1995

Resident, Department of Internal Medicine,
Seoul National University Hospital

1981 - 1987

Undergraduate (MD), Seoul National University College of Medicine