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NEHEMIAH SLIWOSKI
NPI 1407507734
Speech-Language Pathologist in Vancouver, WA

Active since January 18, 2022
800 E 40TH ST, VANCOUVER, WA 98663(360) 313-3331 Get Directions Write a Review

NPPES record last updated: January 18, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Nehemiah Sliwoski NPPES

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

NEHEMIAH SLIWOSKI (NPI 1407507734) is an individual speech-language pathologist provider in Vancouver, Washington, licensed in Washington (SLP.LL.61198998) and active in the NPI registry since January 2022.

NPPES Registry Identity

NPI1407507734
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NameNEHEMIAH SLIWOSKI
Location Address800 E 40TH STVancouver, WA 98663-1874
Mailing Address800 E 40th StVancouver, WA 98663-1874
Phone(360) 313-3331
Sole ProprietorNo
Enumeration DateJanuary 18, 2022
NPPES CertifiedJanuary 18, 2022
✔ NPI 1407507734 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 WA · SLP.LL.61198998
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.

800 E 40TH ST, Vancouver, WA 98663
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Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Giavanna ***** September 20, 2025

5/5
Exceptional diagnostic, consulting, and therapy skills. Responsible, caring, supportive, and a joy to work with! Highly recommended.
Provider 5/5 Office Staff 5/5
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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SUSAN L SYNOLD SLP
Speech-Language Pathologist
800 E 40TH ST
VANCOUVER, WA 98663
Clark County (360) 313-3300

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 Nehemiah Sliwoski's NPI number?

The NPI number for Nehemiah Sliwoski is 1407507734. It was assigned to this individual provider in the NPPES registry on January 18, 2022.

Where is Nehemiah Sliwoski located?

Nehemiah Sliwoski practices at 800 E 40th St, Vancouver, WA 98663. The listed phone number is (360) 313-3331.

What is Nehemiah Sliwoski'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 Nehemiah Sliwoski was last updated on January 18, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.