Barbara A. Muir, PA-C
NPI 1104811181ActiveIndividual· Physician Assistant· Westerly, RI
Physician Assistant (PA-C) with Vmd Primary Providers of Rhode Island PC, practicing in Westerly, Rhode Island. Their prescriptions cost Medicare Part D more than their services did: $252,376 for 3,834 claims, against $30,919 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $824.44 in all, mostly food and beverage. Lists South County Hospital Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1104811181 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 15, 2005 |
| Last updated in NPPES | Dec 26, 2023 |
| Certified by provider | Dec 26, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA00257 | RI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 714 across 32 procedure codes |
| Paid by Medicare | $30,919 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,834 · 8,304 30-day fills |
|---|---|
| Patients | 392 |
| Total drug cost | $252,376 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Vmd Primary Providers of Rhode Island PCCumberland, RI · 53 clinicians
Hospital affiliations
- South County Hospital IncWakefield, RI
- Westerly HospitalWesterly, RI
Industry payments (Open Payments)
- 2025$824.44 · 38 payments from 16 companies
- 2024$1,415 · 71 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $162.82 | 8 |
| Glaxosmithkline, LLC. | $122.21 | 7 |
| Novo Nordisk Inc | $103.34 | 4 |
| Biogen, Inc. | $76.60 | 3 |
| Exact Sciences Corporation | $46.85 | 2 |
What the 2025 payments were for
- Food and Beverage$824.44 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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