Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria R. Merrill, AU.D., CCC/A

Audiologist in Milwaukee, WI · enumerated 2006.

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

National Provider Identifier

1275567745

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Registry record

Entity type Individual (Type 1)

Name Maria R. Merrill

Credential AU.D., CCC/A

Sex Female

Practice address 3003 W Good Hope Rd, Milwaukee, WI, 53209

Phone (414) 352-3100

Fax (414) 247-4597

Enumeration date Jul 10, 2006

Last updated in NPPES Nov 23, 2021

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 329 (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
P00654386	Other	WI	RR MEDICARE
41142500	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1275567745 active?

Yes, as of the latest NPPES snapshot, NPI 1275567745 is active (record last updated 2021-11-23).

How do I verify Maria Merrill's NPI record?

Cross-check NPI 1275567745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-23.