Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Williamson

Individual provider Speech-Language Pathologist · NPI 1710358080

John Williamson is a Speech-Language Pathologist in Bellevue, Washington. Licensed in Washington. Registered with an NPI since 2015.

Licensed in
WA
In the registry since
2015

Practice location Address checks out

123 112th Ave NE Apt 226
Bellevue, WA 98004-6489
Phone: (425) 229-9036
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence SLP.LL.60606128 (WA)

Record details

NPI number1710358080
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 13, 2015
Last updated in NPPESSeptember 14, 2021
Certification dateSeptember 14, 2021
Mailing address123 112th Ave Ne Apt 226, Bellevue, WA 98004-6489

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