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
Mailing address2707 S Diamond Bar Blvd Ste 104, Diamond Bar, CA 91765-3500

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

Other providers in Diamond Bar