Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary L Leno, P.M.H.N.P.

Adult Psychiatric/Mental Health Clinical Nurse Specialist in Walla Walla, WA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457301491

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Registry record

Entity type Individual (Type 1)

Name Gary L Leno

Credential P.M.H.N.P.

Sex Male

Practice address 1520 Kelly Pl, Suite 234, Walla Walla, WA, 99362

Phone (509) 522-4000

Fax (509) 522-5290

Enumeration date May 11, 2006

Last updated in NPPES Feb 24, 2015

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 200350053NP PMHNP-PP (OR) Secondary

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License AP60426528 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
223347	Medicaid	OR	-
1457301491	Medicaid	WA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gary Leno?

Gary Leno is registered in NPPES with the primary taxonomy of Adult Psychiatric/Mental Health Clinical Nurse Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-24.