Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Gretchen L Nelson, M.S.,CC-A

Audiologist in Birmingham, AL · enumerated 2008.

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

National Provider Identifier

1326290008

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Registry record

Entity type Individual (Type 1)

Name Mrs. Gretchen L Nelson

Credential M.S.,CC-A

Sex Female

Practice address 833 Saint Vincents Dr, Suite 402, Birmingham, AL, 35205

Phone (205) 933-9236

Fax (205) 933-9213

Enumeration date Oct 14, 2008

Last updated in NPPES Nov 5, 2009

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 0907A (AL) Primary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 0907A (AL) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Gretchen Nelson?

Gretchen Nelson 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 2009-11-05.