Ian L. Greybull, FNP
NPI 1801105531ActiveIndividual· Nurse Practitioner· Bismarck, ND
Nurse Practitioner (FNP) with Shoshone-Paiute Tribes, practicing in Bismarck, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $141,401 for 871 claims, against $10,556 paid for services in 2024. Lists Northeastern Nevada Regional Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1801105531 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | Yes |
| NPI issued | Sep 29, 2010 |
| Last updated in NPPES | Mar 5, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | R29280 | 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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 285 across 34 procedure codes |
| Paid by Medicare | $10,556 |
Part D prescriptions in 2024
| Prescriptions (claims) | 871 · 1,537 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $141,401 |
| Generic share | 65% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Shoshone-Paiute TribesOwyhee, NV · 10 clinicians
Hospital affiliations
- Northeastern Nevada Regional HospitalElko, NV
- Saint Alphonsus Regional Medical CenterBoise, ID
- St Luke's Elmore Medical CenterMountain Home, ID
Industry payments (Open Payments)
None reported for 2025 or 2024.
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