Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LESLIE ZWART M.A., SLP
NPI 1295967214
Speech-Language Pathologist in Dekalb, IL

Q: What is Leslie Zwart's NPI number?

The NPI number for Leslie Zwart is 1295967214. It was assigned to this individual provider in the NPPES registry on August 10, 2009.

Q: What is Leslie Zwart's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Q: When was this NPI record last updated?

The NPPES record for Leslie Zwart was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 10, 2009

1161 GLIDDEN AVE, DEKALB, IL 60115(779) 777-0010 Get Directions Write a Review

NPPES record last updated: October 26, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 26, 2026, Sep 29, 2026 (2 updates tracked since 2026).

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About Leslie Zwart M.a., Slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LESLIE ZWART M.A., SLP (NPI 1295967214) is an individual speech-language pathologist provider in Dekalb, Illinois, licensed in Illinois (146.009860) and active in the NPI registry since August 2009.

NPPES Registry Identity

NPI1295967214

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameLESLIE ZWARTCredential: M.A., SLP

Location Address1161 GLIDDEN AVEDekalb, IL 60115-4376

Mailing AddressPo Box 103Shabbona, IL 60550-0103 · (779) 777-0010

Phone(779) 777-0010

Sole ProprietorNo

Enumeration DateAugust 10, 2009

Last NPPES UpdateOctober 26, 20262 updates tracked since enumeration

NPPES CertifiedOctober 26, 2026

✔ NPI 1295967214 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers

Taxonomy Code235Z00000X

License✔ Licensed in IL · 146.009860

Definition

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

1161 GLIDDEN AVE, Dekalb, IL 60115

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leslie Zwart's NPI number?

The NPI number for Leslie Zwart is 1295967214. It was assigned to this individual provider in the NPPES registry on August 10, 2009.

Where is Leslie Zwart located?

Leslie Zwart practices at 1161 Glidden Ave, Dekalb, IL 60115. The listed phone number is (779) 777-0010.

What is Leslie Zwart's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Leslie Zwart was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.