• Resident & Medical Specialist, Plastic Surgery Dept., Seoul Asan Hospital
• Served as Chief Surgeon, Plastic Surgery Dept., Yeongdong Hospital
• Advisory Medical Doctor, Plastic Surgery Dept., Seoul Asan Hospital
• Official member, International Association of Plastic Surgeons
• Official member, the Korean Society of Plastic and Reconstructive Surgeons
• Official member, the Korean Society for Aesthetic Plastic Surgery
• Official member, Korean Cleft Palate-Craniofacial Association
• Official member, the Korean Association of Plastic Surgeons