Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Amy M Wiza, AU.D.

Audiologist in Greenfield, WI · enumerated 2007.

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

National Provider Identifier

1750435947

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Registry record

Entity type Individual (Type 1)

Name Ms. Amy M Wiza

Credential AU.D.

Sex Female

Practice address 4448 W Loomis Rd, Greenfield, WI, 53220

Phone (414) 281-5150

Enumeration date Jan 23, 2007

Last updated in NPPES Nov 24, 2021

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 435156 (WI) Secondary

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 435-156 (WI) 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
41146600	Medicaid	WI	-

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 Amy Wiza?

Amy Wiza 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 2021-11-24.