# CORNERSTONE PSYCHOLOGIST, PS

> Is this information incorrect? This page shows public data from NPPES. Update your record in NPPES and this page will update automatically within 7 days. [Update your NPPES record](https://nppes.cms.hhs.gov)

- **Entity:** Organization
- **Status:** Active
- **Organization subpart:** No

## Provider details

- **NPI number:** 1295947687
- **Authorized official:** JOHN ESTELLE (PRESIDENT)
- **Authorized official phone:** (509) 455-8886

## Contact information

- **Practice address:** 1525 W 8TH AVE, SPOKANE, WA 99204-3414
- **Practice address phone:** (509) 455-8886
- **Practice address fax:** (509) 455-8887
- **Mailing address:** 1525 W 8TH AVE, SPOKANE, WA 99204-3414
- **Mailing address phone:** (509) 455-8886
- **Mailing address fax:** (509) 455-8887

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 103TC0700X | Clinical Psychologist | PY1950 | WA | — |
| 103TC0700X | Clinical Psychologist | PY2057 | WA | — |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner | AP30005127 | WA | Yes |

## Other

- **Enumeration date:** 05/05/2007
- **Last updated:** 09/11/2025