Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrea S Gerlach, AU.D.

Audiologist in Dallas, TX · enumerated 2007.

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

National Provider Identifier

1164565545

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Registry record

Entity type Individual (Type 1)

Name Andrea S Gerlach

Credential AU.D.

Sex Female

Practice address 7777 Forest Ln, A103, Dallas, TX, 75230

Phone (972) 566-7359

Enumeration date Feb 15, 2007

Last updated in NPPES Aug 13, 2012

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 01105 (MD) Secondary

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 80257 (TX) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

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 Andrea Gerlach?

Andrea Gerlach 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-13.