Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katelyn Mae Cook

Q: What is the NPI number for Katelyn Cook?

The National Provider Identifier (NPI) for Katelyn Cook is 1538090378, a Type 1 (individual) record in the CMS NPPES registry.

Speech-Language Pathologist in Atascadero, CA · enumerated 2026.

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

National Provider Identifier

1538090378

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Registry record

Entity type Individual (Type 1)

Name Katelyn Mae Cook

Sex Female

Practice address 6501 Lewis Ave, Atascadero, CA, 93422

Phone (805) 462-4230

Enumeration date May 28, 2026

Last updated in NPPES May 28, 2026

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 38241 (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 is the NPI number for Katelyn Cook?

The National Provider Identifier (NPI) for Katelyn Cook is 1538090378, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katelyn Cook practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-28.