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

William Maier

Individual provider Case Manager/Care Coordinator · NPI 1346479052

William Maier is a Case Manager/Care Coordinator in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2009.

Licensed in
WA
In the registry since
2009
Specialties on file
2

Practice location Address checks out

1200 5th Ave Ste 800
Seattle, WA 98101-3136
Phone: (206) 374-0109
Show map & directions

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

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence RC6010404 (WA)
Case Manager/Care Coordinator Taxonomy 171M00000X (WA)

Record details

NPI number1346479052
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 2, 2009
Last updated in NPPESFebruary 23, 2023
Certification dateJanuary 13, 2023
Mailing address1200 5th Ave Ste 800, Seattle, WA 98101-3136

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