Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Katherine Anne Ankrum, M.S.,CCC-A

Audiologist in Marshalltown, IA · enumerated 2015.

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

National Provider Identifier

1821484924

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Registry record

Entity type Individual (Type 1)

Name Mrs. Katherine Anne Ankrum

Credential M.S.,CCC-A

Sex Female

Practice address 101 Iowa Ave W, Marshalltown, IA, 50158

Phone (641) 754-6701

Enumeration date Apr 15, 2015

Last updated in NPPES Apr 15, 2015

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 00297 (IA) Primary

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 Ankrum?

The National Provider Identifier (NPI) for Katherine Ankrum is 1821484924, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katherine Ankrum practice?

The practice location on file with NPPES is in Marshalltown, IA. 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 2015-04-15.