- Wonkwang University Hospital Internal Medicine Resident
- Full-time physician, clinical assistant professor, Department of Internal Medicine, Wonkwang University Hospital
- Director of Internal Medicine, Gunsan Medical Center
- Chief of Department of Hematology and Oncology, Jeonju Jesus Hospital
- Clinical Associate Professor, International St. Mary's Hospital, Catholic Kwandong University
- Regular member of the Korean Society of Hematology
- Regular member of the Korean Society of Medical Oncology
- Regular member of the Korean Anticancer Therapy Research Society
- Regular member of the Korean Society of Internal Medicine
- Regular member of the Korean Medical Association
