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Dr. Garr J Crookston, AU.D.

Audiologist-Hearing Aid Fitter in Alameda, CA · enumerated 2006.

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

National Provider Identifier

1104999200

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Registry record

Entity type Individual (Type 1)
Name Dr. Garr J Crookston
Credential AU.D.
Sex Male
Practice address 2314 Central Ave, Alameda, CA, 94501
Phone (510) 865-8113
Fax (510) 865-8115
Enumeration date Nov 16, 2006
Last updated in NPPES Apr 26, 2012

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 108267-4101 (UT) Primary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

Other identifiers

Identifier Type State Issuer
00001814488-05 Other UT UHC

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 Garr Crookston?
Garr Crookston is registered in NPPES with the primary taxonomy of Audiologist-Hearing Aid Fitter. 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 2012-04-26.