Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Jonathan David Ou, MD

Individual provider Pediatrics Physician · NPI 1518109719

Jonathan David Ou, MD is an Internal Medicine in Diamond Bar, California. Qualified in 2009, 17 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
17
Licensed in
CA
In the registry since
2009
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2707 S Diamond Bar Blvd Ste 104
Diamond Bar, CA 91765
Phone: (909) 594-8331
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2251 N Harbor Blvd, Fullerton, CA 92835-2601 — (714) 449-6230

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A113176 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence A113176 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1518109719
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 2, 2009
Last updated in NPPESAugust 20, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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