Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mary Joan Kristine R Diaz, PHARMD

Pharmacist in Huntington Park, CA · enumerated 2021 · practices at Pacific Coast Rx LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1508446204

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Registry record

Entity type Individual (Type 1)

Name Mary Joan Kristine R Diaz

Credential PHARMD

Sex Female

Practice address Huntington Park, CA, 90255

Phone (323) 587-1200

Fax (323) 587-1300

Enumeration date Apr 8, 2021

Last updated in NPPES Apr 8, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 62830 (CA) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Joan Kristine Diaz?

The National Provider Identifier (NPI) for Mary Joan Kristine Diaz is 1508446204, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Joan Kristine Diaz practice?

The practice location on file with NPPES is in Huntington Park, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Pacific Coast Rx LLC Community/Retail Pharmacy · Huntington Park, CA NPI 1578795803

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-08.