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

William Diercks

Individual provider Counselor · NPI 1225736135

William Diercks is a Counselor in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2023.

Licensed in
WA
In the registry since
2023

Practice location Address checks out

216 James St
Seattle, WA 98104-5102
Phone: (206) 464-6454
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence CG61411525 (WA)

Record details

NPI number1225736135
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 20, 2023
Last updated in NPPESFebruary 24, 2023
Certification dateFebruary 24, 2023
Mailing address216 James St, Seattle, WA 98104-5102

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