Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Billie H Karnatz

Speech-Language Pathologist in Bartlett, IL · enumerated 2010 · practices at Ages & Stages Therapy, PC.

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

National Provider Identifier

1033412390

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Registry record

Entity type Individual (Type 1)

Name Mrs. Billie H Karnatz

Sex Female

Practice address 685 Morning Glory Ln, Bartlett, IL, 60103

Phone (630) 648-9512

Enumeration date Dec 8, 2010

Last updated in NPPES Dec 8, 2010

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146.010532 (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

What is the NPI number for Billie Karnatz?

The National Provider Identifier (NPI) for Billie Karnatz is 1033412390, a Type 1 (individual) record in the CMS NPPES registry.

Where does Billie Karnatz practice?

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

Other providers at this practice address

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Ages & Stages Therapy, PC Speech-Language Pathologist · Bartlett, IL NPI 1700926300

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-08.