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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

LAKE WASHINGTON THERAPEUTICS PLLC
NPI 1497675672
Psychologist - Clinical in Seattle, WA

Active since July 17, 2026
4105 E MADISON ST STE 222, SEATTLE, WA 98112(206) 860-1752(206) 338-6413 Get Directions Write a Review

NPPES record added: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Lake Washington Therapeutics Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LAKE WASHINGTON THERAPEUTICS PLLC (NPI 1497675672) is a healthcare organization registered as a clinical in Seattle, Washington and active in the NPI registry since July 2026. The organization lists Beverly Excell Cartwright, Psychologist, as its authorized official.

NPPES Registry Identity

NPI1497675672
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameLAKE WASHINGTON THERAPEUTICS PLLC
Location Address4105 E MADISON ST STE 222Seattle, WA 98112-3204
Mailing Address4105 E Madison St Ste 222Seattle, WA 98112-3204 · (206) 860-1752 · Fax (206) 338-6413
Phone(206) 860-1752
Fax(206) 338-6413
Organization SubpartNo
Authorized OfficialBeverly Excell CartwrightPsychologist · (206) 860-1752
Enumeration DateJuly 17, 2026
NPPES CertifiedJuly 17, 2026
✔ NPI 1497675672 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
4105 E MADISON ST STE 222, Seattle, WA 98112
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lake Washington Therapeutics PLLC's NPI number?

The NPI number for Lake Washington Therapeutics PLLC is 1497675672. It was assigned to this organization in the NPPES registry on July 17, 2026.

Where is Lake Washington Therapeutics PLLC located?

Lake Washington Therapeutics PLLC is located at 4105 E Madison St Ste 222, Seattle, WA 98112. The listed phone number is (206) 860-1752.

What is Lake Washington Therapeutics PLLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Lake Washington Therapeutics PLLC was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.