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MARISSA LYNN COSAERT
NPI 1023975612
Counselor - Mental Health in Walla Walla, WA

Active since January 06, 2026
5 W ALDER ST STE 333, WALLA WALLA, WA 99362(509) 529-4774 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Marissa Lynn Cosaert NPPES

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

MARISSA LYNN COSAERT (NPI 1023975612) is an individual mental health provider in Walla Walla, Washington, licensed in Washington (MHCA.MC.70045905) and active in the NPI registry since January 2026.

NPPES Registry Identity

NPI1023975612
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMARISSA LYNN COSAERT
Location Address5 W ALDER ST STE 333Walla Walla, WA 99362-2849
Mailing Address5 W Alder St Ste 333Walla Walla, WA 99362-2849 · (509) 529-4774
Phone(509) 529-4774
Sole ProprietorNo
Enumeration DateJanuary 6, 2026
NPPES CertifiedJanuary 6, 2026
✔ NPI 1023975612 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in WA · MHCA.MC.70045905
5 W ALDER ST STE 333, Walla Walla, WA 99362
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Other Providers at the Same Location NPPES

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

DELIA SARAH FREY LSWAIC
Social Worker (Clinical)
5 W ALDER ST STE 333
WALLA WALLA, WA 99362
Walla Walla County (509) 301-9011

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 Marissa Cosaert's NPI number?

The NPI number for Marissa Cosaert is 1023975612. It was assigned to this individual provider in the NPPES registry on January 6, 2026.

Where is Marissa Cosaert located?

Marissa Cosaert practices at 5 W Alder St Ste 333, Walla Walla, WA 99362. The listed phone number is (509) 529-4774.

What is Marissa Cosaert's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Marissa Cosaert was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.