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

Ariana Neddermann, FNP-C

Family Nurse Practitioner in Downey, CA · enumerated 2023 · practices at Downey Industrial Medical Group, Inc..

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

National Provider Identifier

1548049471

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ariana Neddermann

Credential FNP-C

Sex Female

Practice address Downey, CA, 90241

Phone (562) 869-1201

Enumeration date Sep 28, 2023

Last updated in NPPES Sep 28, 2023

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95024407 (CA) 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 Ariana Neddermann practice?

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

What is the NPI number for Ariana Neddermann?

The National Provider Identifier (NPI) for Ariana Neddermann is 1548049471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Downey Industrial Medical Group, Inc. Pain Medicine (Anesthesiology) Physician · Downey, CA NPI 1184194128 Elizabeth Pham Family Nurse Practitioner · Downey, CA NPI 1366193120

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-28.