Anna M. Zwiefel, CNP
Family Medicine Physician · Emmetsburg, IA
Anna M. Zwiefel, CNP is a family medicine physician with a practice address in Emmetsburg, Iowa, and NPI 1225679780, issued on Oct 4, 2019. Check the license (Iowa A156729, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Anna M. Zwiefel
- Credential
- CNP
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A156729 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3201 1St St, Emmetsburg, IA 50536
- Phone
- (712) 852-5500
- Enumerated
- Oct 4, 2019
- Record last updated
- Sep 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191106003117); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 3201 1St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jared Ball, LMSW/ICAADCSocial Worker1699191387
- Amanda Beurskens, ARNP-BCFamily Nurse Practitioner1538767991
- Paula Blocker, LICSWSocial Worker1982243838
- Sara Boysen, ARNPFamily Nurse Practitioner1194273516
- Tami Culver, PTAPhysical Therapy Assistant1881739308
- Melody DegenAthletic Trainer1023628914
Verify Anna M. Zwiefel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license A156729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average family medicine physician in 2024
5,726 Medicare Part D claims for 312 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 48 claims were for opioids.
Most prescribed
- Atorvastatin Calcium397 claims
- Levothyroxine Sodium312 claims
- Omeprazole213 claims
- Losartan Potassium212 claims
- Lisinopril169 claims
- Metoprolol Succinate165 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $543.13
30 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Palo Alto County HospitalWest Bend, IA · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Anna M. Zwiefel among 2,336 family medicine physician records in Iowa
Anna M. Zwiefel, CNP is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 82% of them.
- NPI issued2019 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2006 among the 1,367 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in Emmetsburg
They are 5 of the 72 NPPES records with a practice address in Emmetsburg, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Emmetsburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Patricia Banwart, DOEmmetsburg, IA 505361386655447
- Jason Patton, M.DEmmetsburg, IA 505361538513379
- Daunyale Sporaa, DOEmmetsburg, IA 505361952312985
- Frank Veltri, MDEmmetsburg, IA 505361326059353
- Dustin Smith, MDEagle Grove, IA 505331134191018
- Adam Swisher, DOGowrie, IA 505431518129436
- Jon Ahrendsen, M.D.Clarion, IA 505251326036062
- Adam Andrews, D.O.Clarion, IA 505251295048759
Common questions
What is Anna M. Zwiefel, CNP's NPI number?
Anna M. Zwiefel, CNP's National Provider Identifier (NPI) is 1225679780, issued on Oct 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Anna M. Zwiefel, CNP located?
The NPPES record lists a practice address at 3201 1St St, Emmetsburg, IA, 50536. Phone: (712) 852-5500. Providers update this record themselves, so call before visiting.
How can I verify Anna M. Zwiefel, CNP's license?
NPPES lists Iowa license number A156729, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anna M. Zwiefel, CNP prescribe under Medicare Part D?
In 2024, Anna M. Zwiefel, CNP had 5,726 Medicare Part D claims for 312 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.