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

Treat Mental Health Washington LLC

Organization Community/Behavioral Health Agency · NPI 1477374304

Treat Mental Health Washington LLC is a Community/Behavioral Health Agency in Bellevue, Washington. Registered with an NPI since 2024.

In the registry since
2024
Specialties on file
3
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

13555 SE 36th St Ste 110
Bellevue, WA 98006-1400
Phone: (949) 506-6162
Show map & directions

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

Specialties & licences

Community/Behavioral Health Agency (primary) Taxonomy 251S00000X
Adult Mental Health Clinic/Center Taxonomy 261QM0850X
Adolescent and Children Mental Health Clinic/Center Taxonomy 261QM0855X

Record details

NPI number1477374304
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Emily Hinson — Authorized Official · (206) 483-0322
NPI enumeratedOctober 23, 2024
Last updated in NPPESJuly 23, 2026
Certification dateJuly 23, 2026
Mailing address2915 Red Hill Ave Ste A210c, Costa Mesa, CA 92626-7979

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