Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel Castro

Adult Companion in Marysville, CA · enumerated 2025.

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

National Provider Identifier

1669354395

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Registry record

Entity type Individual (Type 1)

Name Daniel Castro

Sex Male

Practice address 201 D St Ste R, Marysville, CA, 95901

Phone (530) 441-2400

Enumeration date Jul 23, 2025

Last updated in NPPES Jul 23, 2025

Taxonomy & licenses

372600000X Adult Companion Nursing Service Related 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

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.

What specialty is Daniel Castro?

Daniel Castro is registered in NPPES with the primary taxonomy of Adult Companion. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-23.