Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eileen D Cayabyab

Clinical Social Worker in Merced, CA · enumerated 2022.

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

National Provider Identifier

1609588607

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Registry record

Entity type Individual (Type 1)

Name Eileen D Cayabyab

Sex Female

Practice address 301 E 13th St, Merced, CA, 95341

Phone (209) 381-6800

Enumeration date Dec 21, 2022

Last updated in NPPES May 21, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
14332903	Other	-	KAISER PERMANENTE

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.

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Frequently asked questions

Is NPI 1609588607 active?

Yes, as of the latest NPPES snapshot, NPI 1609588607 is active (record last updated 2025-05-21).

How do I verify Eileen Cayabyab's NPI record?

Cross-check NPI 1609588607 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 2025-05-21.