Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Stephen A Larson, MS. ED.

Social Worker in La Grande, OR · enumerated 2009.

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

National Provider Identifier

1972733467

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Registry record

Entity type Individual (Type 1)

Name Mr. Stephen A Larson

Credential MS. ED.

Sex Male

Practice address 1100 K Ave, La Grande, OR, 97850

Phone (541) 962-8800

Fax (541) 963-5272

Enumeration date Jul 20, 2009

Last updated in NPPES Jul 20, 2009

Taxonomy & licenses

104100000X Social Worker 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 Stephen Larson?

Stephen Larson is registered in NPPES with the primary taxonomy of Social Worker. 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 2009-07-20.