CORNERSTONE PSYCHOLOGICAL SERVICES, PLLC
NPI 1396439873
Community/Behavioral Health in Hayden, ID

Q: What is Cornerstone Psychological Services, PLLC's specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

Active since June 07, 2023

579 W HAYDEN AVE, HAYDEN, ID 83835(509) 289-2642 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 12, 2026, Sep 6, 2023, Jun 7, 2023 (3 updates tracked since 2023).

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About Cornerstone Psychological Services, Pllc NPPES

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

CORNERSTONE PSYCHOLOGICAL SERVICES, PLLC (NPI 1396439873) is a healthcare organization registered as a community/behavioral health in Hayden, Idaho and active in the NPI registry since June 2023. The organization lists Courtney Edmonson, Owner/psychologist, as its authorized official.

NPPES Registry Identity

NPI1396439873

Entity TypeOrganization

Primary Taxonomy251S00000X

Legal Business NameCORNERSTONE PSYCHOLOGICAL SERVICES, PLLC

Location Address579 W HAYDEN AVEHayden, ID 83835-9726

Mailing Address579 W Hayden AveHayden, ID 83835-9726 · (509) 289-2642

Phone(509) 289-2642

Organization SubpartNo

Authorized OfficialCourtney EdmonsonOwner/psychologist · (509) 289-2642

Enumeration DateJune 7, 2023

Last NPPES UpdateMarch 12, 20263 updates tracked since enumeration

NPPES CertifiedMarch 12, 2026

✔ NPI 1396439873 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity/Behavioral HealthAgencies

Taxonomy Code251S00000X

Definition

A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.

579 W HAYDEN AVE, Hayden, ID 83835

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Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cornerstone Psychological Services, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Cornerstone Psychological Services, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Courtney Edmonson, PSYD

Clinical Psychologist

NPI 1366950933

579 W HAYDEN AVE
Hayden, ID 83835

(509) 289-2642

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Cornerstone Psychological Services, PLLC's NPI number?

The NPI number for Cornerstone Psychological Services, PLLC is 1396439873. It was assigned to this organization in the NPPES registry on June 7, 2023.

Where is Cornerstone Psychological Services, PLLC located?

Cornerstone Psychological Services, PLLC is located at 579 W Hayden Ave, Hayden, ID 83835. The listed phone number is (509) 289-2642.

What is Cornerstone Psychological Services, PLLC's specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

Is Cornerstone Psychological Services, PLLC enrolled in Medicare?

Yes. Cornerstone Psychological Services, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cornerstone Psychological Services, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Cornerstone Psychological Services, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Cornerstone Psychological Services, PLLC was last updated on March 12, 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.