Anna Zwiefel, CNP
NPI 1225679780 · Family Medicine Physician · Emmetsburg, IA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Zwiefel, CNP is a Family Medicine Physician provider in Emmetsburg, IA (NPI 1225679780).
Provider details
- NPI number
- 1225679780
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- A156729 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 397 | 108 |
| Levothyroxine Sodium | 312 | 71 |
| Omeprazole | 213 | 58 |
| Losartan Potassium | 212 | 56 |
| Lisinopril | 169 | 41 |
| Metoprolol Succinate | 165 | 41 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$543 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-10-04
- Last updated
- 2020-09-23
- Certified
- 2020-08-25
Frequently asked questions
- What is Anna Zwiefel's NPI number?
- Anna Zwiefel's National Provider Identifier (NPI) is 1225679780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Zwiefel's specialty?
- Anna Zwiefel is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Zwiefel located?
- Anna Zwiefel's practice location on file with NPPES is 3201 1st St, Emmetsburg, IA 50536-2516.
- What is Anna Zwiefel's phone number?
- The practice phone number listed in the NPPES registry for Anna Zwiefel is (712) 852-5500.
- Does Anna Zwiefel accept Medicare?
- Anna Zwiefel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Zwiefel's NPI active?
- Yes — Anna Zwiefel's NPI (1225679780) is active in the NPPES registry as of the last update on 2020-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.