Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Denise Greiner, AUD

Audiologist in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1639100910

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Registry record

Entity type Individual (Type 1)

Name Denise Greiner

Credential AUD

Sex Female

Practice address 675 N Saint Clair St, Galter 15-200, Chicago, IL, 60611

Phone (312) 695-8182

Enumeration date Jul 5, 2006

Last updated in NPPES Sep 23, 2008

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147-001155 (IL) 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.

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Frequently asked questions

How do I verify Denise Greiner's NPI record?

Cross-check NPI 1639100910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639100910 active?

Yes, as of the latest NPPES snapshot, NPI 1639100910 is active (record last updated 2008-09-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-23.