- Seoul National University Boramae Hospital, full-time surgeon, spine surgery
- Seoul National University Boramae Hospital, clinical consultant physician.
- CM Hospital, chief doctor of spine surgery.
- KS Hospital, director of spine center.
- Regular member of the Korean Orthopedic Association.
- Regular member of the Korean Society of Spine Surgery.
- Seoul National University orthopedic surgery alumnus
- AO spine member
- Former field doctor of Kiwoom Heroes baseball team
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