Mary Isom, PA-C
NPI 1336599083ActiveIndividual· Physician Assistant· Wahpeton, ND
Physician Assistant (PA-C) with Sanford Medical Center Fargo, practicing in Wahpeton, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $190,544 for 3,021 claims, against $36,811 paid for services in 2024. Astellas Pharma US Inc was the largest of 2 companies reporting payments in 2025, $39.96 in all, mostly food and beverage. Lists Sanford Medical Center Fargo and 1 other hospital as hospital affiliations.
Overview
| NPI | 1336599083 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 14, 2016 |
| Last updated in NPPES | Jun 14, 2016 |
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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 274 |
|---|---|
| Services billed | 2,809 across 63 procedure codes |
| Paid by Medicare | $36,811 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,021 · 5,769 30-day fills |
|---|---|
| Patients | 404 |
| Total drug cost | $190,544 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Sanford Medical Center FargoWest Fargo, ND · 1,225 clinicians
Hospital affiliations
- Sanford Medical Center FargoFargo, ND
- St Francis Medical CenterBreckenridge, MN
Industry payments (Open Payments)
- 2025$39.96 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $24.34 | 1 |
| Axsome Therapeutics, Inc. | $15.62 | 1 |
What the 2025 payments were for
- Food and Beverage$39.96 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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