NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marianne Larsen, PA-C

Medical Physician Assistant in Lake City, FL · enumerated 2007.

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

National Provider Identifier

1043350093

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marianne Larsen
Credential PA-C
Sex Female
Practice address 4225 Nw American Ln, Lake City, FL, 32055
Enumeration date Feb 7, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0003034 (FL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marianne Larsen practice?
The practice location on file with NPPES is in Lake City, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marianne Larsen?
The National Provider Identifier (NPI) for Marianne Larsen is 1043350093, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.