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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

James Olsen

Certified Registered Nurse Anesthetist in Nashua, NH · enumerated 2025.

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

National Provider Identifier

1538055918

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Registry record

Entity type Individual (Type 1)
Name James Olsen
Sex Male
Practice address Nashua, NH, 03060
Phone (603) 577-2000
Enumeration date Jun 13, 2025
Last updated in NPPES Jun 13, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 114609-23 (NH) 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

What is the NPI number for James Olsen?
The National Provider Identifier (NPI) for James Olsen is 1538055918, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Olsen practice?
The practice location on file with NPPES is in Nashua, NH. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-13.