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

Mathias Castillo

Interpreter in Lynnwood, WA · enumerated 2026.

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

National Provider Identifier

1013811843

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Registry record

Entity type Individual (Type 1)
Name Mathias Castillo
Sex Male
Practice address Lynnwood, WA, 98037
Phone (206) 866-4867
Enumeration date Oct 5, 2026
Last updated in NPPES Oct 5, 2026

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

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.

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Frequently asked questions

Where does Mathias Castillo practice?
The practice location on file with NPPES is in Lynnwood, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mathias Castillo?
The National Provider Identifier (NPI) for Mathias Castillo is 1013811843, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-05.