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

Jonathan D Ou MD Inc

Organization Internal Medicine Physician · NPI 1497199772

Jonathan D Ou MD Inc is an Internal Medicine Physician in Diamond Bar, California. Licensed in California. Registered with an NPI since 2013.

Licensed in
CA
In the registry since
2013
Specialties on file
2
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2707 S Diamond Bar Blvd Ste 104
Diamond Bar, CA 91765-3500
Phone: (909) 594-8331
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A113176 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence A113176 (CA)

Record details

NPI number1497199772
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jonathan Ou — Owner/President · (909) 670-7880
NPI enumeratedApril 17, 2013
Last updated in NPPESApril 17, 2013
Mailing address2707 S Diamond Bar Blvd, Suite 104, Diamond Bar, CA 91765-3500

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