Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Edna Miroslava Olvera Diaz

Marriage & Family Therapist in Antioch, CA · enumerated 2022.

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

National Provider Identifier

1639893183

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Registry record

Entity type Individual (Type 1)

Name Edna Miroslava Olvera Diaz

Sex Female

Practice address 2335 Country Hills Dr, Antioch, CA, 94509

Phone (925) 608-8700

Enumeration date Sep 28, 2022

Last updated in NPPES Feb 3, 2026

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 160969 (CA) Primary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

106S00000X Behavior Technician Behavioral Health & Social Service Providers Secondary

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

Where does Edna Olvera Diaz practice?

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

What is the NPI number for Edna Olvera Diaz?

The National Provider Identifier (NPI) for Edna Olvera Diaz is 1639893183, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-03.