Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine Louise Isbell, AU.D.

Audiologist in Rancho Cordova, CA · enumerated 2013.

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

National Provider Identifier

1841625456

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Louise Isbell

Credential AU.D.

Sex Female

Practice address 11100 Coloma Rd, Rancho Cordova, CA, 95670

Phone (916) 361-7290

Enumeration date Sep 13, 2013

Last updated in NPPES Jun 26, 2017

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 132 (AK) Secondary

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 3122 (CA) Secondary

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 3122 (CA) 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

What is the NPI number for Katherine Isbell?

The National Provider Identifier (NPI) for Katherine Isbell is 1841625456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katherine Isbell practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-06-26.