Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erika Knox, AU.D.

Q: What is the NPI number for Erika Knox?

The National Provider Identifier (NPI) for Erika Knox is 1588139729, a Type 1 (individual) record in the CMS NPPES registry.

Audiologist in Chicago, IL · enumerated 2018.

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

National Provider Identifier

1588139729

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Registry record

Entity type Individual (Type 1)

Name Erika Knox

Credential AU.D.

Sex Female

Practice address 1611 W Harrison St Ste 530, Chicago, IL, 60612

Phone (312) 942-5332

Fax (312) 563-2452

Enumeration date Oct 3, 2018

Last updated in NPPES May 20, 2022

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147001859 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Erika Knox practice?

The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Erika Knox?

The National Provider Identifier (NPI) for Erika Knox is 1588139729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-20.