Tammie J. Harder, PA-C
NPI 1477651628ActiveIndividual· Physician Assistant· Grand Forks, ND
Physician Assistant (PA-C) with Altru Health System and 1 other group, practicing in Grand Forks, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $811,314 for 9,759 claims, against $83,406 paid for services in 2024. Exact Sciences Corporation reported $71.93 in payments in 2025, mostly food and beverage. Lists Altru Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1477651628 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Oct 13, 2020 |
| Certified by provider | Oct 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PAC0031 | ND |
| Nurse Practitioner | 363L00000X | PAC0031 | ND |
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 (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 571 |
|---|---|
| Services billed | 1,666 across 36 procedure codes |
| Paid by Medicare | $83,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,759 · 21,548 30-day fills |
|---|---|
| Patients | 755 |
| Total drug cost | $811,314 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Altru Health SystemGrand Forks, ND · 684 clinicians
- Christian Unity Hospital CorporationGrafton, ND · 24 clinicians
Hospital affiliations
- Altru HospitalGrand Forks, ND
- Northwood Deaconess Health CenterNorthwood, ND
- Unity Medical CenterGrafton, ND
Other facilities
- Altru's Home HealthHome health agency · Grand Forks, ND
- Good Samaritan Society Home CareHome health agency · Devils Lake, ND
Industry payments (Open Payments)
- 2025$71.93 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $71.93 | 1 |
What the 2025 payments were for
- Food and Beverage$71.93 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 67 physician assistants in Grand Forks · All physician assistants in North Dakota