Seoul National University honors the people who made distinguished achievements in their lives with the Distinguished SNU Members Award. It has been the highest honor bestowed upon SNU alumni or faculty since 1991. The award is granted annually on the founding anniversary of the university during the official anniversary ceremony.
Doctor Chang provided free medical treatment for the poor, and founded the first private-led medical insurance association in 1975, which later became the initiation of the national medical insurance system. Chang was also an extraordinary surgeon who first succeeded in liver resection in Korea.