Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gwendolyn M Regan, MS CCC A

Audiologist in Madison, WI · enumerated 2006.

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

National Provider Identifier

1750345476

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Registry record

Entity type Individual (Type 1)

Name Gwendolyn M Regan

Credential MS CCC A

Sex Female

Practice address 1 S Park St, Madison, WI, 53715

Phone (608) 287-2650

Fax (608) 287-2550

Enumeration date Apr 12, 2006

Last updated in NPPES Apr 29, 2009

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 281156 (WI) 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

What specialty is Gwendolyn Regan?

Gwendolyn Regan is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-29.