Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark W Clark, PSY.D.

Psychologist in Vancouver, WA · enumerated 2006.

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

National Provider Identifier

1114081577

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Registry record

Entity type Individual (Type 1)

Name Mark W Clark

Credential PSY.D.

Sex Male

Practice address 7507 Ne 51st St, Vancouver, WA, 98662

Phone (360) 906-1190

Fax (360) 906-1193

Enumeration date Dec 20, 2006

Last updated in NPPES Mar 13, 2026

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PY2226 (WA) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PY2226 (WA) Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
164936	Medicaid	OR	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1114081577 active?

Yes, as of the latest NPPES snapshot, NPI 1114081577 is active (record last updated 2026-03-13).

How do I verify Mark Clark's NPI record?

Cross-check NPI 1114081577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-13.