John Yun Chang is 42 years old. John lives in Honolulu, HI. Other places in which John has lived are Arcadia, CA; Brea, CA; Fullerton, CA and Irvine, CA. John works at Md. Allison L Chan, Chao-yuan Chan, Eric C Chan, Tien Tzu Chang, Chiensheng S Chan, Liu Ming-chiang Chan, Ming C Chan and Yim Chan are in John family.
