Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claudia Castillo

Interpreter in Greeley, CO · enumerated 2026.

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

National Provider Identifier

1023947975

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Registry record

Entity type Individual (Type 1)

Name Claudia Castillo

Sex Female

Practice address 101 E 20th St Lot 8, Greeley, CO, 80631

Phone (970) 702-1898

Enumeration date May 18, 2026

Last updated in NPPES May 18, 2026

Taxonomy & licenses

171R00000X Interpreter Other Service Providers 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

Where does Claudia Castillo practice?

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

What is the NPI number for Claudia Castillo?

The National Provider Identifier (NPI) for Claudia Castillo is 1023947975, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-18.