Tonja Leana Winekauf, ARNP
NPI 1710275912ActiveIndividual· Nurse Practitioner, Family· Vermillion, SD
Nurse Practitioner, Family (ARNP) with Iowa Physicians Clinic Medical Foundation and 3 other groups, practicing in Vermillion, South Dakota. Their prescriptions cost Medicare Part D more than their services did: $210,554 for 3,521 claims, against $59,984 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2024, $302.35 in all, mostly food and beverage. Lists Sanford Vermillion Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1710275912 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Jul 21, 2011 |
| Last updated in NPPES | Dec 19, 2025 |
| Certified by provider | Dec 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 106627 | IA |
| Nurse Practitioner | 363L00000X | 71006713A | IN |
| Nurse Practitioner, Family | 363LF0000X | CP002690 | SD |
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 (IA); Practitioner - Nurse Practitioner (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 198 |
|---|---|
| Services billed | 2,324 across 62 procedure codes |
| Paid by Medicare | $59,984 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,521 · 6,370 30-day fills |
|---|---|
| Patients | 302 |
| Total drug cost | $210,554 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Iowa Physicians Clinic Medical FoundationDes Moines, IA · 1,246 clinicians
- Northwest Iowa Hospital CorporationBellevue, NE · 160 clinicians
- Floyd Valley HealthcareLe Mars, IA · 38 clinicians
- Hawarden Regional Healthcare Clinics LLCHawarden, IA · 21 clinicians
Hospital affiliations
- Sanford Vermillion Medical CenterVermillion, SD
- St Lukes Regional Medical CenterSioux City, IA
Industry payments (Open Payments)
- 2024$302.35 · 6 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $138.59 | 4 |
| Otsuka America Pharmaceutical, Inc. | $123.63 | 1 |
| Abbott Laboratories | $40.13 | 1 |
What the 2024 payments were for
- Food and Beverage$175.19 · 3 payments
- Education$127.16 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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