Dr. Jonathan Ou, MD


Internal Medicine | Male

Jonathan Ou, MD 2707 S Diamond Bar Blvd Ste 104 Diamond Bar, CA 91765 Get Directions
Dr. Jonathan Ou, MD
Dr. Jonathan Ou, MD is an internal medicine doctor who practices in Diamond Bar, CA. He is 34 years old and has been practicing for 8 years. Dr. Ou is affiliated with Chino Valley Medical Center, Pomona Valley Hospital Medical Center and St.Jude Medical Center.

Learn about this doctor

Dr. Ou's Care Philosophy

As an Internal Medicine/Pediatrics physician, I believe in preventive care and lifestyle changes are the first step in treating chronic diseases.

Dr. Ou's Experience

Experience Match

See how Dr. Ou's experience matches your preferences.


For the best healthcare for your needs, choose a doctor who specializes in your medical condition.

Board Certifications

Board certification indicates that a doctor is highly qualified in the medical field in which they practice.

Conditions Treated

Check to see that this provider treats your medical condition.

Procedures Performed

Check to see that this provider performs the procedure that you need.

Background Check

Check to see if your provider has any malpractices, board actions, or sanctions.


Learn more about where this provider went to medical school, residency, and more.

Awards & Recognition

View information about special awards and recognition for this provider.

Languages Spoken

Check to see what languages this provider and/or staff speak.

Memberships & Professional Affiliations

View memberships and affiliations associated with this provider.

Visiting Dr. Ou

Dr. Ou accepts 6 insurance carriers

Dr. Ou is now accepting new patients

Affiliated Hospitals

Hospital Quality
Check out the quality of care at the 3 hospitals where Dr. Ou has admitting privileges.

Dr. Ou's Reviews

Likelihood of recommending Dr. Ou to family and friends
based on 10 total reviews (1 with a comment)
Dr. Ou's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (1)
in Walnut, CA |
His office doesn't overbook patients so you don't have to wait in the waiting room very long. I went to see him without an appointment and he was able to see me right away. He listens and takes great notes of your condition. He urges you to call him if your have any questions or concerns. They utilize an e-health portal online and you can access your PHR.
Have you seen Dr. Jonathan Ou, MD?
Are you Dr. Ou?
Make it easy for patients to share their feedback. Also manage your personalized profile!

Compare Dr. Ou

Compare this Doctor
View other doctors with similar experience to find the right doctor for you.
View all 10 matches

Dr. Ou's Care Philosophy

As an Internal Medicine/Pediatrics physician, I believe in preventive care and lifestyle changes are the first step in treating chronic diseases.

Dr. Ou's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Internal Medicine
  •  Board certified in Internal Medicine and Pediatrics
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Ou has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for California.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Ou's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Internal Medicine
  • Pediatrics

Conditions Treated

  • Asthma
  • Diabetes
  • Heart Disease
  • High Cholesterol
  • Hyperlipidemia
  • Hypertension


  • Medical School
    University of Southern California / Keck School of Medicine

    Graduated in 2009

  • Internship Hospital
    Loma Linda Univ

    Completed in 2010

  • Residency Hospital
    Loma Linda Univ

    Completed in 2013

  • Undergraduate School
    Pomona College

    Graduated in 2005

Languages Spoken

  • English
  • Mandarin
  • Spanish

Memberships &
Professional Affiliations

Dr. Ou does not have any memberships or affiliations listed. If you are Dr. Ou and would like to add memberships or affiliations, please update your free profile.


  • Internal Medicine
  • Pediatrics

Procedures Performed

  • Electrocardiogram (EKG)
  • Immunization
  • Pap Smear
  • Physical Examination
  • Vaccination