Dr. Ling Xu is a California state licensed medical doctor, specializing in Internal Medicine. Graduated Magna Cum Laude from Guangzhou Medical University, completed residency training in exas Tech University HSC El Paso, Dr. Xu currently is working at Bay Valley Medical Group, located in 20126 Stanton Ave Castro Valley CA 94546 Please call +1-510-581-2559 to contact. | |||