New Search Wendy J. Gu MD (626) 964-2880 Primary Specialties Internal Medicine Date Appointed 10/7/2014 Primary Office Address: 1850 S. Azusa ave., Suite 205 Hacienda Heights, CA 91745 Phone: (626) 964-2880 Fax: (626) 964-2834 Recommend this Physician Get Directions Areas of Expertise Internal Medicine