Joseph Victor Zwirko, PA-C
NPI 1346403037ActiveIndividual· Physician Assistant· Springfield, MA
Physician Assistant (PA-C) with Ortho Ma LLC, practicing in Springfield, Massachusetts. 700 Medicare patients in 2024, $144,247 paid; nearly all of their 841 Part D prescriptions were generic (99%).
Overview
| NPI | 1346403037 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jul 3, 2008 |
| Last updated in NPPES | Nov 15, 2023 |
| Certified by provider | Nov 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2557 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 700 |
|---|---|
| Services billed | 8,341 across 57 procedure codes |
| Paid by Medicare | $144,247 |
Part D prescriptions in 2024
| Prescriptions (claims) | 841 · 864 30-day fills |
|---|---|
| Patients | 340 |
| Total drug cost | $5,252 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Ortho Ma LLCWestfield, MA · 19 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 175 physician assistants in Springfield · All physician assistants in Massachusetts