NPI Portal NPI Lookup & Verification

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

Mrs. Rubi Nunez Ayala, ASW , MSW

Social Worker in Menlo Park, CA · enumerated 2025.

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

National Provider Identifier

1578363685

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Registry record

Entity type Individual (Type 1)
Name Mrs. Rubi Nunez Ayala
Credential ASW , MSW
Sex Female
Practice address Menlo Park, CA, 94025
Enumeration date Mar 17, 2025
Last updated in NPPES Mar 17, 2025

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 127318 (CA) Primary

Other identifiers

Identifier Type State Issuer
127318 Other CA BOARD OF BEHAVIORAL SCIENCES

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

Is NPI 1578363685 active?
Yes, as of the latest NPPES snapshot, NPI 1578363685 is active (record last updated 2025-03-17).
How do I verify Rubi Ayala's NPI record?
Cross-check NPI 1578363685 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-17.