Dortha, Chu M.D.Attending PhysicianGeneral Surgery Education: Washington University School of MedicineMain Office:661-467-2370 Henry Mayo Newhall Hospital 25425 Orchard Village Rd #150 Valencia , CA 91355 Certification: Board Certified in General Surgery Additional Office:15031 Rinaldi St Ste 150, Mission Hills, CA 91345, (661) 449-9631