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

KATHLEEN L MATTHEWS
NPI 1942134101
Registered Nurse - Psychiatric/Mental Health in Mercer Island, WA

Q: What is Kathleen Matthews's NPI number?

The NPI number for Kathleen Matthews is 1942134101. It was assigned to this individual provider in the NPPES registry on June 11, 2026.

Q: What is Kathleen Matthews's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Psychiatric/Mental Health, with taxonomy code 163WP0808X.

Q: When was this NPI record last updated?

The NPPES record for Kathleen Matthews was last updated on June 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.

Active since June 11, 2026

9725 SE 36TH ST STE 205, MERCER ISLAND, WA 98040(425) 495-0727 Get Directions Write a Review

NPPES record added: June 11, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Kathleen L Matthews NPPES

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

KATHLEEN L MATTHEWS (NPI 1942134101) is an individual psychiatric/mental health provider in Mercer Island, Washington, licensed in Washington (RN.60296984) and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1942134101

Entity TypeIndividualFemale

Primary Taxonomy163WP0808X

Provider Legal NameKATHLEEN L MATTHEWS

Location Address9725 SE 36TH ST STE 205Mercer Island, WA 98040-3840

Mailing Address5751 58th Ave NeSeattle, WA 98105-2019 · (425) 417-7027

Phone(425) 495-0727

Sole ProprietorNo

Enumeration DateJune 11, 2026

NPPES CertifiedJune 11, 2026

✔ NPI 1942134101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered Nurse · Psychiatric/Mental HealthNursing Service Providers

Taxonomy Code163WP0808X

License✔ Licensed in WA · RN.60296984

9725 SE 36TH ST STE 205, Mercer Island, WA 98040

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBEKAH VIGILEOS NP

Nurse Practitioner (Psychiatric/Mental Health)

9725 SE 36TH ST STE 205
MERCER ISLAND, WA 98040

King County (480) 434-9153

CRESCENT OUTPATIENT AND WELLNESS PLLC

Clinic/Center (Adult Mental Health)

9725 SE 36TH ST STE 205
MERCER ISLAND, WA 98040

King County (425) 495-0727

CRESCENT OUTPATIENT AND WELLNESS PLLC

Nurse Practitioner (Psychiatric/Mental Health)

9725 SE 36TH ST STE 205
MERCER ISLAND, WA 98040

King County (480) 434-9153

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 Kathleen Matthews's NPI number?

The NPI number for Kathleen Matthews is 1942134101. It was assigned to this individual provider in the NPPES registry on June 11, 2026.

Where is Kathleen Matthews located?

Kathleen Matthews practices at 9725 SE 36th St Ste 205, Mercer Island, WA 98040. The listed phone number is (425) 495-0727.

What is Kathleen Matthews's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Psychiatric/Mental Health, with taxonomy code 163WP0808X.

When was this NPI record last updated?

The NPPES record for Kathleen Matthews was last updated on June 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.