Anna M. Zwiefel, CNP
NPI 1225679780ActiveIndividual· Family Medicine· Emmetsburg, IA
Family Medicine (CNP) with Palo Alto County Hospital, practicing in Emmetsburg, Iowa. Part D covered 5,726 prescriptions written in 2024, 88% of them generic. Lilly USA, LLC was the largest of 10 companies reporting payments in 2025, $477.49 in all, mostly food and beverage. Lists Humboldt County Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1225679780 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | No |
| NPI issued | Oct 4, 2019 |
| Last updated in NPPES | Sep 23, 2020 |
| Certified by provider | Aug 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A156729 | IA |
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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 5,726 · 12,141 30-day fills |
|---|---|
| Patients | 312 |
| Total drug cost | $525,171 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Palo Alto County HospitalEmmetsburg, IA · 23 clinicians
Hospital affiliations
- Humboldt County Memorial HospitalHumboldt, IA
- Kossuth Regional Health CenterAlgona, IA
- Mercyone North Iowa Medical CenterMason City, IA
- Palo Alto County HospitalEmmetsburg, IA
- Pocahontas Community HospitalPocahontas, IA
Other facilities
- Community Health ServicesHome health agency · Algona, IA
- West Bend Health and RehabilitationNursing home · West Bend, IA
Industry payments (Open Payments)
- 2025$477.49 · 34 payments from 10 companies
- 2024$543.13 · 30 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $219.65 | 18 |
| Viatris Specialty LLC | $94.36 | 5 |
| Phathom Pharmaceuticals, Inc. | $42.10 | 3 |
| E.R. Squibb & Sons, L.L.C. | $33.54 | 2 |
| Exact Sciences Corporation | $15.69 | 1 |
What the 2025 payments were for
- Food and Beverage$477.49 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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