NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Barbieri, NP

Family Nurse Practitioner in Sebastopol, CA · enumerated 2025.

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

National Provider Identifier

1134929573

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ellen Barbieri
Credential NP
Sex Female
Practice address 2264 Green Hill Rd, Sebastopol, CA, 95472
Enumeration date Mar 14, 2025
Last updated in NPPES Mar 14, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95030533 (CA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 Ellen Barbieri practice?
The practice location on file with NPPES is in Sebastopol, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ellen Barbieri?
The National Provider Identifier (NPI) for Ellen Barbieri is 1134929573, 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 2025-03-14.