Kwangdong Hospital

M.D., College of Medicine, Korea University

M.P.H., Johns Hopkins Bloomberg School of Public Health

Former Professor, Division of Gastroenterology, Ilsan CHA Hospital

Former Director, Center for Geriatric Medicine, CHA Bundang Medical Center

Former President, CHAUM (CHA Anti-Aging Life Center)

Former Professor, Department of Gastroenterology, Korea University Medical Center

Former Assistant Professor, Division of Gastroenterology, Samsung Medical Center

Former Visiting Professor, Johns Hopkins University School of Medicine (USA)

Former Research Fellow, Division of Gastroenterology, Harvard Medical School (USA)

Former Visiting Professor, International Healthcare Center, Korea University Medical Center

International Medical Volunteer, Mongolia – KOICA (Korea International Cooperation Agency)

Commendation from the Minister of Health and Welfare (Korea) – for excellence in CPR outreach and training

Professor Emeritus, Seoul National University College of Medicine

Former Professor, SNUH Allergy and Clinical Immunology & Dept. of Internal Medicine Seoul National University College of Medicine

Former President, The Korean Academy of Asthma, Allergy and Clinical Immunology

Former President, Healthcare System Gangnam Center, SNUH

Neurology Residency, Stroke Center, Asan Medical Center, Seoul, Korea

Research Fellow, Department of Neurology, Asan Medical Center

Clinical Assistant Professor, Department of Neurology, Asan Medical Center

Three-time recipient of the Excellence in Fellowship Award, Asan Medical Center

Former Doctor, Neuro ICU, NYP Hospital, USA

Chief Neurologist & Deputy Director of Dementia Services, Seongnam Senior Health Center

Certified in Clinical Neurophysiology

Completed Special Dementia Grading Course (Korea Dementia Association)

Completed Cognitive Behavioral Therapy (CBT) Training – Korean Society for Depressive and Bipolar Disorders

Completed Continuing Education in Depression Care – KDBD

Full Member, Korean Neurological Association (KNA)

Full Member, Korean Stroke Society (KSS)

Full Member, Korean Dementia Association (KDA)

Clinical Instructor, Department of Rehabilitation Medicine, Gangnam Severance Hospital

Researcher, Industry-Academic Cooperation Foundation, Yonsei University Health System

Supervising Specialist, Department of Rehabilitation Medicine, Yonsei University College of Medicine

Full Member, Korean Academy of Rehabilitation Medicine (KARM)

Full Member, Korean Association of Clinical Pain Physicians (KACPP)

Full Member, Korean Society for Neurorehabilitation (KSNR)

Full Member, Korean Spinal Cord Society (KoSCoS)

Full Member, Korean Spinal Cord Society (KoSCoS)

Full Member, Korean Society for Geriatric Rehabilitation (KSGR)

Full Member, Korean Society of Sports Medicine (KSSM)

Winner of the Excellence Poster Award, 46th Annual Conference of the Korean Academy of Rehabilitation Medicine

Full Member, The Society of Korean Medicine (SKOM)

Full Member, The Society of Internal Korean Medicine

Full Member, The Society of Immuno-Acupuncture

Full Member, The Society of Obstetrics and Gynecology of Korean Medicine

Certified in Musculoskeletal Ultrasound (RMSK), American Registry for Diagnostic Medical Sonography (ARDMS)​

Former Adjunct Professor, College of Korean Medicine, Daejeon University

Former Instructor, U.S. Air Force Medical Center

Auditor, Association of Korean Medicine Hospitals

Full Member, The Society of Internal Korean Medicine

Full Member, The Society of Applied Kinesiology

Certified Instructor, Korean Balance Taping Medical Society

Full Member, The Society of Natural Korean Medicine

Full Member, The Society of Sasang Constitutional Medicine

Full Member, The Society of Pharmacopuncture

Full Member, The Society of Sports Korean Medicine

Full Member, The Society of Korean Medicine

Certified in Musculoskeletal Ultrasound (RMSK), American Registry for Diagnostic Medical Sonography (ARDMS)​