Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jason Allen Butler, M.A.

Psychologist in Eureka, CA · enumerated 2009.

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

National Provider Identifier

1467689893

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Registry record

Entity type Individual (Type 1)

Name Mr. Jason Allen Butler

Credential M.A.

Sex Male

Practice address 1802 California St, Eureka, CA, 95501

Phone (707) 443-7358

Fax (707) 443-1092

Enumeration date Jun 11, 2009

Last updated in NPPES Jun 11, 2009

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

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 Jason Butler?

Jason Butler is registered in NPPES with the primary taxonomy of Psychologist. 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 2009-06-11.