Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julia Kay Diedrich

Speech-Language Pathologist in Lake in the Hills, IL · enumerated 2024.

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

National Provider Identifier

1639903933

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Registry record

Entity type Individual (Type 1)

Name Julia Kay Diedrich

Sex Female

Practice address 1301 Pyott Rd, Lake in the Hills, IL, 60156

Phone (847) 829-0922

Enumeration date Aug 28, 2024

Last updated in NPPES Aug 28, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 242.007823 (IL) 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

Where does Julia Diedrich practice?

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

What is the NPI number for Julia Diedrich?

The National Provider Identifier (NPI) for Julia Diedrich is 1639903933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-28.