Quick answers
- Does Anna M. Zwiefel accept Medicare assignment?
- Yes. Medicare's clinician data says Anna M. Zwiefel accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Anna M. Zwiefel's NPI number?
- 1225679780. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anna M. Zwiefel works
Medicare's Facility Affiliation Data lists Anna M. Zwiefel at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Humboldt County Memorial HospitalHumboldt, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161334
- Kossuth Regional Health CenterAlgona, IA · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 161353
- MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160064
- Palo Alto County HospitalEmmetsburg, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161357
- Pocahontas Community HospitalPocahontas, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161305
Practice locations
Addresses where Anna M. Zwiefel is enrolled with Medicare (CMS data updated October 2, 2026).
- 107 W Division StWest Bend, IA 50597 (515) 887‑7881
- 3201 1st StEmmetsburg, IA 50536 (712) 852‑5500
Group practices
Medicare enrollment lists Anna M. Zwiefel as a member of this group (CMS data updated October 2, 2026).
- Palo Alto County Hospital23 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in West Bend
Clinicians with the same Medicare primary specialty in West Bend, IA — not a recommendation.
Other clinicians in Palo Alto County Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225679780 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians