NPPES file of Aug 9, 2026

Jennifer Rebecca Mazza, ARNP, FNP-C

Family Nurse Practitioner · Fairfield, IA

Jennifer Rebecca Mazza, ARNP, FNP-C is a family nurse practitioner with a practice address in Fairfield, Iowa, and NPI 1366968968, issued on Aug 16, 2017. Check the license (Iowa A119156, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366968968
Name
Jennifer Rebecca Mazza
Credential
ARNP, FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
A119156 IA
Self-reported in NPPES; status is on the state search
Practice location
2709 W Briggs Ave, Fairfield, IA 52556
Phone
(319) 356-1616
Enumerated
Aug 16, 2017
Record last updated
Jun 21, 2024
Medicare enrollment
Enrolled (PECOS I20171229000595); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2709 W Briggs Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Judith Book-Davin, ARNPFamily Nurse Practitioner1578540944
  2. Brooke Vicker, ARNPGerontology Nurse Practitioner1720456346

Verify Jennifer Rebecca Mazza in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license A119156    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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53% fewer Medicare Part D claims than the average family nurse practitioner in 2024

613 Medicare Part D claims for 364 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 37 claims were for opioids.

  1. Jennifer Mazza613
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass71 claims
  2. Cefdinir63 claims
  3. Prednisone63 claims
  4. Cephalexin41 claims
  5. Azithromycin22 claims
  6. Doxycycline Monohydrate21 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.

Bills Medicare through one group practice

  1. Emergency Services OF Iowa LLCOttumwa, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

7 family nurse practitioner records list a practice address in Fairfield

They are 7 of the 178 NPPES records with a practice address in Fairfield, and 1,971 family nurse practitioner records in Iowa.

All 7 in Fairfield → All 1,971 in Iowa → Every provider in Fairfield →

Other family nurse practitioner records in Iowa

  1. Lynne AbbottCedar Rapids, IA1699357277
  2. Amina AbdullahCedar Rapids, IA1598420747
  3. Brandon Abel, DNPIowa City, IA1043160674
  4. Andrea AchenbachIowa City, IA1881975910
  5. Rachel Ackerman, NPSheldon, IA1275124372
  6. Tonia Ackerman, ARNPPleasant Hill, IA1932142692
  7. Rachel Adams, NPDes Moines, IA1013662485
  8. Abdullahi Ahmed, AGPCNPDes Moines, IA1336924836
  9. Caitlyn Al-Ostaz, DNP FNP-CIowa City, IA1457188740
  10. Alaa Al-Talla, ARNPWaverly, IA1396592291

Common questions

What is Jennifer Rebecca Mazza, ARNP, FNP-C's NPI number?

Jennifer Rebecca Mazza, ARNP, FNP-C's National Provider Identifier (NPI) is 1366968968, issued on Aug 16, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Rebecca Mazza, ARNP, FNP-C located?

The NPPES record lists a practice address at 2709 W Briggs Ave, Fairfield, IA, 52556. Phone: (319) 356-1616. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Rebecca Mazza, ARNP, FNP-C's license?

NPPES lists Iowa license number A119156, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Jennifer Rebecca Mazza, ARNP, FNP-C prescribe under Medicare Part D?

In 2024, Jennifer Rebecca Mazza, ARNP, FNP-C had 613 Medicare Part D claims for 364 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.