| Dr. Chengyu Xu is a California state licensed medical doctor, specializing in Endocrinology. Graduated Magna Cum Laude from Sun Yat-Sen Medical University, completed residency training in Good Samaritan Hospital, and completed the Endocrinology specialist training at University of Miami. Dr. Xu currently is working at Kaiser Permanente, located in 3505 Broadway Oakland CA 94611 | |||