Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guadalupe T Castillo, LADC,

Addiction (Substance Use Disorder) Counselor in Willmar, MN · enumerated 2014.

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

National Provider Identifier

1669885851

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Registry record

Entity type Individual (Type 1)

Name Guadalupe T Castillo

Credential LADC,

Sex Female

Practice address 1125 6th St Se, Willmar, MN, 56201

Phone (320) 235-4613

Enumeration date Jun 5, 2014

Last updated in NPPES Jun 5, 2014

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 301036 (MN) 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 Guadalupe Castillo?

Guadalupe Castillo is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. 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 2014-06-05.