Paul Chao Yuan, Sun M.D.Attending PhysicianOtolaryngology Education: Washington University School of MedicineMain Office:949-305-8000 Orange County Ear Nose and Throat 24411 Health Ctr Dr #600 Laguna Hills, CA 92653 Certifications: Board Certified in Otolaryngology Additional Office: 22 Odyssey, #100 Irvine, CA 92618 (949) 679-9000 Hospital Affiliations: Hoag Affiliated Physicians Mission Hospital Affiliated Physicians O.C.Ear, Nose & Throat Assoc. Certifications:American Board of Otolaryngology , Otolaryngology