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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. OSVALDO C ARENAS-DIAZ M.D.
NPI 1043204142
Specialist in Covina, CA

Active since September 02, 2005
218 W BADILLO ST, COVINA, CA 91723(626) 332-6243(626) 331-1264 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Osvaldo C Arenas-diaz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. OSVALDO C ARENAS-DIAZ M.D. (NPI 1043204142) is an individual specialist in Covina, California, licensed in California (A34699) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1043204142
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. OSVALDO C ARENAS-DIAZCredential: M.D.
Location Address218 W BADILLO STCovina, CA 91723-1906
Mailing Address218 W Badillo StCovina, CA 91723-1906 · (626) 332-6243 · Fax (626) 331-1264
Phone(626) 332-6243
Fax(626) 331-1264
Sole ProprietorNo
Enumeration DateSeptember 2, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1043204142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in CA · A34699
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
218 W BADILLO ST, Covina, CA 91723
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Other Identifiers 1

Medicaid00A346990CA

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JEFFREY KIM-WAYNE GIN M.D.
Family Medicine
218 W BADILLO ST
COVINA, CA 91723
Los Angeles County (626) 332-6234
KIM-WAYNE MEDICAL ENTERPRISES INC
Family Medicine
218 W BADILLO ST
COVINA, CA 91723
Los Angeles County (626) 332-6234

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Osvaldo Arenas-diaz's NPI number?

The NPI number for Osvaldo Arenas-diaz is 1043204142. It was assigned to this individual provider in the NPPES registry on September 2, 2005.

Where is Osvaldo Arenas-diaz located?

Osvaldo Arenas-diaz practices at 218 W Badillo St, Covina, CA 91723. The listed phone number is (626) 332-6243.

What is Osvaldo Arenas-diaz's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Osvaldo Arenas-diaz was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.