Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deirdre L Courtney, AU.D.

Audiologist in Glen Burnie, MD · enumerated 2014.

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

National Provider Identifier

1851704779

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Registry record

Entity type Individual (Type 1)

Name Deirdre L Courtney

Credential AU.D.

Sex Female

Practice address 7845 Oakwood Rd, Glen Burnie, MD, 21061

Phone (107) 604-3274

Fax (866) 253-2466

Enumeration date Jun 9, 2014

Last updated in NPPES Apr 15, 2019

Taxonomy & licenses

231HA2400X Assistive Technology Practitioner Audiologist Speech, Language and Hearing Service Providers · License 01322 (MD) Secondary

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 01322 (MD) 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
01322	Other	MD	LICENSE

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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 Deirdre Courtney?

Deirdre Courtney 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 2019-04-15.