3.9
18 Ratings with 2 written Reviews
Summary
Dr. Jonathan Ou specializes in internal medicine, providing comprehensive care for adult patients with a wide range of health conditions. He earned his medical degree from the Keck School of Medicine at the University of Southern California and completed his residency training at Loma Linda University Medical Center Program. With 17 years of experience in practice, Dr. Ou brings extensive knowledge to managing both routine health maintenance and complex medical conditions. He provides care in English.
Dr. Ou practices at Chino Valley Medical Center and sees patients in Diamond Bar, California. He focuses on managing heart-healthy conditions such as high cholesterol and high blood pressure. His practice includes preventive care services like flu vaccinations and heart monitoring through EKG testing. Dr. Ou also provides colorectal cancer screening to help detect problems early. Patients have given him an average rating of 3.9 out of 5 stars.
Dr. Ou practices at Chino Valley Medical Center and sees patients in Diamond Bar, California. He focuses on managing heart-healthy conditions such as high cholesterol and high blood pressure. His practice includes preventive care services like flu vaccinations and heart monitoring through EKG testing. Dr. Ou also provides colorectal cancer screening to help detect problems early. Patients have given him an average rating of 3.9 out of 5 stars.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 17 years of experience
- speaks English
- Loma Linda University Medical Center Program
- 2 written reviews
- 1 specialty
- 6 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 1 office location
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Location
Compare with Similar Doctors
 |  |  |  |
| Jonathan Ou | Marcel Benjamin, PharmD | Dr. Tooba Rehman, MD | Karthikeyan Viswanathan, DO |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 17 Years of Experience | 16 Years of Experience | 12 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English, Tamil | |
| Diamond Bar , CA | Costa Mesa , CA | Katy , TX | Palo Alto , CA |
| Med School: Keck School of Medicine of the University of Southern California | Med School: CHICAGO MEDICAL SCHOOL AT ROSALIND FRANKLIN UNIVERSITY OF MEDICINE & SCIENCE | Med School: Bassett Medical Center - Cooperstown, New York | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Jonathan Ou
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Jonathan Ou has the following specialty
Specialty Expertise
Jonathan Ou has the following 6 areas of expertise
Certifications, License, & Education
17 Years Experience
Jonathan Ou holds an expired medical license in the state of California.
Medical License
Medical Doctor with an expired medical license in the state of California that expired in 2026.
Education & Training
Residency
Completed their residency at Loma Linda University Medical Center Program.
Medical School
Graduated from Keck School of Medicine of the University of Southern California in 2009.
NPI Number
Jonathan Ou's NPI number is 1518109719.
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Frequently Asked Questions
- Does Jonathan Ou accept my insurance?
- You can see the insurance plans that Jonathan Ou accepts on their Vitals profile.
- Where is Jonathan Ou's office located?
- Jonathan Ou's office is located at 2707 S Diamond Bar Blvd Ste 104, Diamond Bar, CA, 91765.
- Is Jonathan Ou accepting new patients?
- Jonathan Ou is accepting new patients on Vitals. View Jonathan Ou's profile on Vitals to make an appointment.
- Which hospitals is Jonathan Ou affiliated with?
- Jonathan Ou is affiliated with Chino Valley Medical Center.
- Does Jonathan Ou accept virtual/telehealth appointments?
- Jonathan Ou has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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