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CORTNEY ALICE OSTER
NPI 1225915309
Counselor in Chehalis, WA

Active since August 19, 2025
135 W MAIN ST, CHEHALIS, WA 98532(360) 748-4339 Get Directions Write a Review

NPPES record last updated: August 19, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Cortney Alice Oster NPPES

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

CORTNEY ALICE OSTER (NPI 1225915309) is an individual counselor in Chehalis, Washington, licensed in Washington (CG70040484) and active in the NPI registry since August 2025.

NPPES Registry Identity

NPI1225915309
Entity TypeIndividualFemale
Primary Taxonomy101Y00000X
Provider Legal NameCORTNEY ALICE OSTER
Location Address135 W MAIN STChehalis, WA 98532-4817
Mailing Address2428 W Reynolds AveCentralia, WA 98531-4554 · (360) 330-9044 · Fax (360) 736-0689
Phone(360) 748-4339
Sole ProprietorNo
Enumeration DateAugust 19, 2025
NPPES CertifiedAugust 19, 2025
✔ NPI 1225915309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in WA · CG70040484
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
135 W MAIN ST, Chehalis, WA 98532
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Other Providers at the Same Location NPPES 20

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

MS. TERESA ANN WILLIAMS B.A.
Counselor
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-6696
TROY ACHORD
Counselor (Addiction (Substance Use Disorder))
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-4339
MRS. MARIE ELENA HALVERSON
Counselor
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 292-8043
EZRA JOEL FOSS NP-C
Nurse Practitioner (Psychiatric/Mental Health)
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-4339
MS. KELLI ANN FAUST REGISTERED NURSE
Registered Nurse (Psychiatric/Mental Health)
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-6696
MS. BELLA LUZ MENDEZ B.A.
Counselor (Mental Health)
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-6696
TINA MICHELLE CLARK
Counselor (Mental Health)
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 748-6696
TINA MARIE SANTIAGO M.A., LMFTA
Marriage & Family Therapist
135 W MAIN ST
CHEHALIS, WA 98532
Lewis County (360) 330-7181

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 Cortney Oster's NPI number?

The NPI number for Cortney Oster is 1225915309. It was assigned to this individual provider in the NPPES registry on August 19, 2025.

Where is Cortney Oster located?

Cortney Oster practices at 135 W Main St, Chehalis, WA 98532. The listed phone number is (360) 748-4339.

What is Cortney Oster's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Cortney Oster was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.