William Hertz, FNP-C
NPI 1457138166ActiveIndividual· Nurse Practitioner· Bismarck, ND
Nurse Practitioner (FNP-C) with Sanford Bismarck, practicing in Bismarck, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $116,177 for 853 claims, against $3,258 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 11 companies reporting payments in 2025, $460.19 in all, mostly food and beverage. Lists McKenzie County Healthcare Systems Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457138166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Sep 14, 2023 |
| Last updated in NPPES | Dec 12, 2023 |
| Certified by provider | Dec 12, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | R46000 | 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 - Nurse Practitioner (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 56 across 7 procedure codes |
| Paid by Medicare | $3,258 |
Part D prescriptions in 2024
| Prescriptions (claims) | 853 · 1,835 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $116,177 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Sanford BismarckBismarck, ND · 556 clinicians
Hospital affiliations
- McKenzie County Healthcare Systems IncWatford City, ND
- Mobridge Regional Hospital - CahMobridge, SD
- Sakakawea Medical Center - CahHazen, ND
- Sanford Medical Center BismarckBismarck, ND
- South Central HealthWishek, ND
Industry payments (Open Payments)
- 2025$460.19 · 19 payments from 11 companies
- 2024$412.04 · 16 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $115.51 | 2 |
| Amgen Inc. | $85.04 | 5 |
| Actelion Pharmaceuticals US, Inc. | $52.64 | 2 |
| Pfizer Inc. | $44.34 | 2 |
| Astrazeneca Pharmaceuticals LP | $37.98 | 2 |
What the 2025 payments were for
- Food and Beverage$460.19 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 112 nurse practitioners in Bismarck · All nurse practitioners in North Dakota