Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Catherine L Lanzer, AU.D.

Audiologist in Dayton, OH · enumerated 2016.

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

National Provider Identifier

1043670904

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine L Lanzer

Credential AU.D.

Sex Female

Practice address Dayton, OH, 45402

Phone (937) 496-2600

Fax (937) 496-2610

Enumeration date Mar 4, 2016

Last updated in NPPES Feb 8, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License A.01925 (OH) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

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

How do I verify Catherine Lanzer's NPI record?

Cross-check NPI 1043670904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043670904 active?

Yes, as of the latest NPPES snapshot, NPI 1043670904 is active (record last updated 2018-02-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-08.