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JOHN WILLIAMSON
NPI 1710358080
Speech-Language Pathologist in Bellevue, WA

Active since October 13, 2015
123 112TH AVE NE APT 226, BELLEVUE, WA 98004(425) 229-9036 Get Directions Write a Review

NPPES record last updated: September 14, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About John Williamson NPPES

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

JOHN WILLIAMSON (NPI 1710358080) is an individual speech-language pathologist provider in Bellevue, Washington, licensed in Washington (SLP.LL.60606128) and active in the NPI registry since October 2015.

NPPES Registry Identity

NPI1710358080
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NameJOHN WILLIAMSON
Location Address123 112TH AVE NE APT 226Bellevue, WA 98004-6489
Mailing Address123 112th Ave Ne Apt 226Bellevue, WA 98004-6489 · (425) 229-9036
Phone(425) 229-9036
Sole ProprietorNo
Enumeration DateOctober 13, 2015
Last NPPES UpdateSeptember 14, 2021
NPPES CertifiedSeptember 14, 2021
✔ NPI 1710358080 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.60606128
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.

123 112TH AVE NE APT 226, Bellevue, WA 98004
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Other Providers at the Same Location NPPES

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

SOCIAL SKILLS LABORATORY, PLLC
Speech-Language Pathologist
123 112TH AVE NE APT 226
BELLEVUE, WA 98004
King County (425) 229-9036

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 John Williamson's NPI number?

The NPI number for John Williamson is 1710358080. It was assigned to this individual provider in the NPPES registry on October 13, 2015.

Where is John Williamson located?

John Williamson practices at 123 112th Ave NE Apt 226, Bellevue, WA 98004. The listed phone number is (425) 229-9036.

What is John Williamson's specialty?

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

What insurance does John Williamson accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list John Williamson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Williamson was last updated on September 14, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.