Completion of internship at Gangnam St. Marys Hospital as a family medicine specialist

Executive Director, Severance Integrated Medical Research Society Vice President, Severance Aesthetic Research Society Vice-President, Korean Chronic Fatigue Society Vice President, Skin Function Research Society President, Korean Autonomic Neuromedical Society Full Member, Korean Obesity Society Lifetime Member, Korean Obesity Society Regular Member, Korean Low-Carb, High-Fat Dietary Association Director, Korean Society of Anti-Aging Regular Member, Korean Primary Medical Association Regular Member Vitamin Society Regular Member