Not Accepting New Patients

Jonathan Ou, MD

4.9 out of 5 (47 Ratings)
  • Internal Medicine
    (Board Certified)
  • Pediatrics
    (Board Certified)
Spanish, Chinese - Mandarin, Chinese - Cantonese, English
Primary Address | Office Details
2707 South Diamond Bar Boulevard
Suite 104

Diamond Bar, CA 91765

Phone: (909) 594-8331

Fax: (909) 869-6631

Medical Groups & Affiliations
  • St. Jude Affiliated Physicians
Get Connected
to Your Provider
(909) 594-8331
  • For us, *Dr. Jonathan talk too fast. Hardly to understand. We keep asking to repeat. When I called to make an appointment, I only mentioned 1 issue then when I visited dr. I mentioned 3 issue. He obviously was not happy. *
    1 Total Comments
  • Meet The Provider

    As an Internal Medicine and Pediatrics physician, I believe the best foundation of good health care is evidence-based practice, continuity of care, and patient empathy. Maintaing good relations with colleagues is also of vital importance, thus emphasizing the need for frequent and clear communication.

    Read More
    Primary Specialties
    Primary Specialties
    • Internal Medicine
      (Board Certified)
    • Pediatrics
      (Board Certified)
    Other Specialties Associations
    Board Certifications

    American Board of Internal Medicine, Internal Medicine

    American Board of Pediatrics, Pediatrics

    Education & Training
    • Medical School
      Keck USC School of Medicine
    • Internship
      Loma Linda University
    • Residency
      Loma Linda University
  • Insurance Accepted

    Insurance Accepted

    Insurance Plan

    • Aetna HMO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross Medicare Advantage
    • Blue Shield of CA HMO
    • Blue Shield of CA HMO – Trio
    • Blue Shield of CA Medicare Advantage
    • Cigna HMO
    • Cigna HMO – Select
    • Clever Care Health Plan
    • Health Net Medicare Advantage
    • SCAN Medicare Advantage
    • United Healthcare Medicare Advantage
    • Vivity by Anthem Blue Cross
    • Insurance Plan: HMO PCP ID

      Aetna: *691732
      Blue Cross: *0DL213
      Blue Shield: 00A1131760
      CIGNA: 8982226004
      CIGNA Select: 8982226006
      Health Net: 3206195883
      United Healthcare: *0183440070

      *Provider ID is the same for both HMO and Medicare Advantage Plans

  • Primary Location

Jonathan Ou, MD