Yih-Dar, Nien-Shy M.D.Attending PhysicianGeneral Surgery Surgical Oncology Education: Pontifical Catholic University of CampinasMain Office:661-902-5600 City of Hope 44151 15th St W Lancaster, CA 93534 Hospital Affiliations: Providence Holy Cross Medical Center ½ΣΚά±£ΟΥ: Aetna POS/EPO Aetna Preferred Provider Organization Anthem Blue Cross Covered CA PPO/EPO Cigna POS/EPO Cigna Preferred Provider Organization (PPO) Health Net PPO/EPO/POS Medi-Cal Medi-Medi (Medicare-Medi-Cal) Medicaid Medicare TriWest PPO United Healthcare EPO United Healthcare POS United Healthcare PPO