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Mariana Mcilwain, AU.D

Audiologist in Olympia, WA · enumerated 2018.

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

National Provider Identifier

1922597152

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Registry record

Entity type Individual (Type 1)

Name Mariana Mcilwain

Credential AU.D

Sex Female

Practice address 128 Lilly Rd Ne Ste 202, Olympia, WA, 98506

Phone (360) 357-6314

Enumeration date May 3, 2018

Last updated in NPPES Jun 25, 2018

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License LD60863106 (WA) 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
91-1829653	Other	WA	TAX ID

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 Mariana Mcilwain?

Mariana Mcilwain 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 2018-06-25.