Patrick W. O'Brien, PA-C
NPI 1134577141ActiveIndividual· Physician Assistant, Surgical· Springfield, MA
Physician Assistant, Surgical (PA-C) with Riverbend Medical Group Inc and 1 other group, practicing in Springfield, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $6,058 for 291 claims, against $3,150 paid for services in 2024. Solventum Corporation was the largest of 2 companies reporting payments in 2025, $159.52 in all, mostly food and beverage. Lists Mercy Medical Ctr as a hospital affiliation.
Overview
| NPI | 1134577141 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | May 31, 2016 |
| Last updated in NPPES | Jul 31, 2026 |
| Certified by provider | Jul 31, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | — | MA |
| Physician Assistant, Surgical | 363AS0400X | — | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (CT); Practitioner - Physician Assistant (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 33 across 19 procedure codes |
| Paid by Medicare | $3,150 |
Part D prescriptions in 2024
| Prescriptions (claims) | 291 · 305 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $6,058 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Riverbend Medical Group IncAgawam, MA · 226 clinicians
- SC Orthopedics of New England, PC.Springfield, MA · 10 clinicians
Hospital affiliation
- Mercy Medical CtrSpringfield, MA
Industry payments (Open Payments)
- 2025$159.52 · 3 payments from 2 companies
- 2024$64.32 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Solventum Corporation | $119.43 | 2 |
| Smith+nephew, Inc. | $40.09 | 1 |
What the 2025 payments were for
- Food and Beverage$159.52 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 90 surgical physician assistants in Springfield · All surgical physician assistants in Massachusetts