Hospital Clinical Lecturer, Catholic University of Korea Yeouido St. Mary’s Hospital Outpatient Assistant Professor, Department of Dermatology, Catholic University of Medicine Professor, Department of Dermatology, Eulji University College of Medicine Adjunct Professor, Department of Dermatology, Konkuk University College of Medicine, Graduate School of Medicine, Konkuk University Former Associate Professor, Key Doctor, Korea Allergan Co., Ltd. Former Director , CNP CHA & Park Dermatology, Myeongdong Branch

Now Cha & Park Dermatology Clinic (Sungshin Womens University) Director