- Regular member of the Korean Society of Primary Care - Regular member of the Korean Academy of Obesity & Aesthetic Treatment - Regular member of the Korean Society for Aesthetic & Laser Surgery - Regular member of the International Anti-Aging Society - Formerly at Seoul Yonsei Seongsim Clinic - Formerly at the National Police Hospital, Department of Family Medicine - Former Deputy Director at I Love Dermatology Clinic - Former Deputy Director at Flower Dermatology Clinic