Michael Callahan
NPI 1356979538ActiveIndividual· Physician Assistant· Fredericksburg, VA
Physician Assistant in Fredericksburg, Virginia, with an NPI issued in April 2020. Part D covered 14 prescriptions written in 2024, 86% of them generic. Abiomed was the largest of 2 companies reporting payments in 2025, $144.48 in all, mostly food and beverage.
Overview
| NPI | 1356979538 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Apr 1, 2020 |
| Last updated in NPPES | Apr 5, 2020 |
| Certified by provider | Apr 5, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 14 · 14 30-day fills |
|---|---|
| Total drug cost | $1,029 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$144.48 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $120.88 | 5 |
| Boston Scientific Corporation | $23.60 | 1 |
What the 2025 payments were for
- Food and Beverage$144.48 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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