Mark S. Hammar, PA-C
NPI 1609998731ActiveIndividual· Physician Assistant, Medical· Rexburg, ID
Physician Assistant, Medical (PA-C) in Rexburg, Idaho, licensed in ID, with an NPI issued in April 2007. Enrolled in Medicare as practitioner - physician assistant. Seqirus USA Inc was the largest of 2 companies reporting payments in 2025, $46.23 in all, mostly food and beverage.
Overview
| NPI | 1609998731 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 6, 2007 |
| Last updated in NPPES | Jun 1, 2021 |
| Certified by provider | Jun 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA-734 | ID |
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 (ID) |
|---|
Industry payments (Open Payments)
- 2025$46.23 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Seqirus USA Inc | $29.18 | 1 |
| Collegium Pharmaceutical, Inc. | $17.05 | 1 |
What the 2025 payments were for
- Food and Beverage$46.23 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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