Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Emma Ruiz, MSW , PPSC

School Social Worker in Castro Valley, CA · enumerated 2024.

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

National Provider Identifier

1316798002

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Registry record

Entity type Individual (Type 1)

Name Mrs. Emma Ruiz

Credential MSW , PPSC

Sex Female

Practice address 20185 San Miguel Ave, Castro Valley, CA, 94546

Phone (510) 537-1919

Enumeration date Mar 29, 2024

Last updated in NPPES Mar 29, 2024

Taxonomy & licenses

1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 68974 (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 Emma Ruiz?

Emma Ruiz is registered in NPPES with the primary taxonomy of School 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-29.