Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Arianna M Andersen, FNP

Nurse Practitioner in Grand Junction, CO · enumerated 2006.

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

National Provider Identifier

1558436618

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Registry record

Entity type Individual (Type 1)

Name Ms. Arianna M Andersen

Credential FNP

Sex Female

Practice address 603 28 1/4 Rd, Grand Junction, CO, 81506

Phone (970) 263-2600

Enumeration date Nov 22, 2006

Last updated in NPPES Nov 24, 2015

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0004532-NP (CO) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
20436505	Medicaid	CO	-

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 Arianna Andersen?

The National Provider Identifier (NPI) for Arianna Andersen is 1558436618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Arianna Andersen practice?

The practice location on file with NPPES is in Grand Junction, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Richard Doyle Family Medicine Physician · Grand Junction, CO NPI 1942252275 Jennifer Copeland Family Medicine Physician · Grand Junction, CO NPI 1679591051 Janet Moore Pediatrics Physician · Grand Junction, CO NPI 1417068958 Jan Leah Lamb Pediatrics Physician · Grand Junction, CO NPI 1114011863 David Terry Family Medicine Physician · Grand Junction, CO NPI 1528185972 Community Medical Group, LLC Family Medicine Physician · Grand Junction, CO NPI 1558505503 Jessica King Physician Assistant · Grand Junction, CO NPI 1811127319 Robert Boyer Family Medicine Physician · Grand Junction, CO NPI 1245551316

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-24.