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

Trillium Therapy Collective, PLLC

Organization Mental Health Clinic/Center (Including Community Mental Health Center) · NPI 1619616828

Trillium Therapy Collective, PLLC is a Mental Health Clinic/Center (Including Community Mental Health Center) in Seattle, Washington. Registered with an NPI since 2022.

In the registry since
2022
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5608 17th Ave NW Ste 1513
Seattle, WA 98107-5232
Phone: (206) 880-1712
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Clinic/Center (Including Community Mental Health Center) (primary) Taxonomy 261QM0801X

Record details

NPI number1619616828
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Alexandra Campbell — Cofounder · (347) 753-2025
NPI enumeratedJune 3, 2022
Last updated in NPPESJune 3, 2022
Certification dateJune 3, 2022
Mailing address5608 17th Ave Nw Ste 1513, Seattle, WA 98107-5232

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