Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Carl Johan Olson

Registered Nurse in Idaho Falls, ID · enumerated 2025.

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

National Provider Identifier

1336946490

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Registry record

Entity type Individual (Type 1)

Name William Carl Johan Olson

Sex Male

Practice address 3100 Channing Way, Idaho Falls, ID, 83404

Phone (208) 529-6111

Enumeration date Feb 26, 2025

Last updated in NPPES Mar 3, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 74273 (ID) 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

How do I verify William Olson's NPI record?

Cross-check NPI 1336946490 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1336946490 active?

Yes, as of the latest NPPES snapshot, NPI 1336946490 is active (record last updated 2025-03-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-03.