NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ryan L Larsen, PA-C

Surgical Physician Assistant in Eureka, CA · enumerated 2006.

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

National Provider Identifier

1750300216

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ryan L Larsen
Credential PA-C
Sex Male
Practice address 2826 Harris St, Eureka, CA, 95503
Phone (707) 443-8066
Fax (707) 268-3250
Enumeration date Jul 18, 2006
Last updated in NPPES Feb 18, 2015

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA17509 (CA) Primary

Other identifiers

Identifier Type State Issuer
0PA175090 Medicaid CA -
970003244 Other - RAILROAD MEDICARE

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

What is the NPI number for Ryan Larsen?
The National Provider Identifier (NPI) for Ryan Larsen is 1750300216, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ryan Larsen practice?
The practice location on file with NPPES is in Eureka, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-18.