Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Barbara Ann Gillen, FNP

Family Nurse Practitioner in Billings, MT · enumerated 2006.

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

National Provider Identifier

1093876211

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Registry record

Entity type Individual (Type 1)

Name Ms. Barbara Ann Gillen

Credential FNP

Sex Female

Practice address 2315 St Andrews Dr, Billings, MT, 59105

Phone (406) 861-8549

Enumeration date Dec 12, 2006

Last updated in NPPES Apr 6, 2018

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN-100171 (MT) Primary

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

Is NPI 1093876211 active?

Yes, as of the latest NPPES snapshot, NPI 1093876211 is active (record last updated 2018-04-06).

How do I verify Barbara Gillen's NPI record?

Cross-check NPI 1093876211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-06.