New Search
William Ko MD
Practice accepting new patients.

William Ko MD

(714) 446-5200
Primary Specialties
  • Pain Medicine
    (Board Certified)
Secondary Specialties
  • Anesthesiology
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Affiliated Physician
  • St. Jude Heritage Medical Group
  • Additional Languages Spoken
    Mandarin Chinese

Primary Office

100 E. Valencia Mesa Dr., Suite 310
Fullerton, CA 92835
(714) 446-5200
(714) 446-5181
Web Page:
Recommend this Physician Request an Update for this Physician
4.5 out of 5 (98 Ratings | 12 Comments)


Everyone was rushed because they were too far behind with patients - my treatment DID NOT work as it has before.
Personal and all the above - excellent doctor!
Didn't like the way he spoke to me with out finding my info very insensitive, felt disrespected my husband was with me and also felt the same way. Did he have a bad day!!!
*Dr. Ko has helped improve my ability to continue my life/job with his continuous effort and care of my medical needs beyond what I ever thought possible.
12 Total Comments Page 1 2 3   Next


  • Medical School:
    University of Southern California School of Medicine - Los Angeles, CA
  • Internship:
    Harbor-UCLA Medical Center - Torrance, CA
  • Residency:
    Harbor-UCLA Medical Center - Torrance, CA
  • Fellowship:
    UCLA Medical Center - Los Angeles, CA
  • Board Certified in Anesthesiology
  • Board Certified in Pain Medicine


  • OCMA Physicians of Excellence - 2014
  • OCMA Physicians of Excellence - 2016

This is Your Hospital

Tell Us Why St. Jude is Your Hospital.

Tell My Story
This is Your Hospital