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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Barbara A Muir, PA-C

Physician Assistant in Westerly, RI · enumerated 2005.

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

National Provider Identifier

1104811181

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Registry record

Entity type Individual (Type 1)
Name Mrs. Barbara A Muir
Credential PA-C
Sex Female
Practice address 77 Franklin St Ste 104, Westerly, RI, 02891
Fax (401) 348-3053
Enumeration date Sep 15, 2005
Last updated in NPPES Dec 26, 2023

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA00257 (RI) Primary

Other identifiers

Identifier Type State Issuer
7009514 Medicaid RI -

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 1104811181 active?
Yes, as of the latest NPPES snapshot, NPI 1104811181 is active (record last updated 2023-12-26).
How do I verify Barbara Muir's NPI record?
Cross-check NPI 1104811181 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 2023-12-26.