Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Astrid Henriquez Olonan

Social Worker in Fairfield, CA · enumerated 2017.

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

National Provider Identifier

1861917890

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Registry record

Entity type Individual (Type 1)

Name Astrid Henriquez Olonan

Sex Female

Practice address 2101 Courage Dr, Fairfield, CA, 94533

Phone (707) 784-8718

Enumeration date Aug 10, 2017

Last updated in NPPES Jan 10, 2024

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 105664 (CA) Primary

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 specialty is Astrid Olonan?

Astrid Olonan is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-10.