Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gabriella Guillen

Speech-Language Pathologist in Carol Stream, IL · enumerated 2024.

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

National Provider Identifier

1467285437

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Registry record

Entity type Individual (Type 1)

Name Gabriella Guillen

Sex Female

Practice address 545 Belmont Ln, Carol Stream, IL, 60188

Phone (630) 526-6835

Enumeration date Aug 23, 2024

Last updated in NPPES Jun 24, 2025

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 242008007 (IL) 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 Gabriella Guillen?

Gabriella Guillen is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. 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 2025-06-24.