Wencheng, Jen M.D.Attending PhysicianInternal Medicine Education: Keck School of Medicine of USCMain Office:626-416-3051 Optum Care 416 W. Las Tunas Dr #305 San Gabriel, CA 91776 Clinic Intersts:internal medicine and primary care.Certification: Board Certified in Internal Medicine Hospital Affiliations: San Gabriel Valley Medical Center Providence Holy Cross Medical Center