Dr. Helen Xiao-Ou Xu, MD is a health care provider primarily located in Murrieta, CA, with other offices in Loma Linda, CA and Moreno Valley, CA (and 4 other locations). She has 38 years of experience. Her specialties include Otolaryngology-Head & Neck Surgery. Dr. Xu is affiliated with Loma Linda University Medical Center. She speaks English and Spanish.