Doctor of Philosophy, Kyung Hee University, Seoul, 2001.
Director, department neurosurgery Chuncheon Sacred Heart Hospital College Medicine Hallym University, Republic of Korea, since 2005, director, spine center, since 2006. Executive secretary Korean Neurotrauma Society, Seoul, since 2003, Korean Neurospine Society, Seoul, since 2006, Korean Peripheral Nerve Society, Seoul, since 2008. President Korean Peripheral Nerve Surgery Research Society, Seoul, since 2008.
Married Hyun-Sook Chang. Children: Sung-Won, Sung-Woo.