Jennifer Mazza, ARNP, FNP-C
NPI 1366968968 · Family Nurse Practitioner · Fairfield, IA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Mazza, ARNP, FNP-C is a Family Nurse Practitioner provider in Fairfield, IA (NPI 1366968968).
Provider details
- NPI number
- 1366968968
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- A119156 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
192 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 107 | $136 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 50 | $94 |
| Urinalysis, Manual Test81002 | 23 | $3 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 12 | $35 |
Typical Medicare-allowed amounts for these services range $3–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 71 | 69 |
| Prednisone | 63 | 58 |
| Cefdinir | 63 | 61 |
| Cephalexin | 41 | 40 |
| Azithromycin | 22 | 22 |
| Doxycycline Monohydrate | 21 | 20 |
| Mupirocin | 19 | 18 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-08-16
- Last updated
- 2024-06-21
- Certified
- 2024-06-21
Frequently asked questions
- What is Jennifer Mazza's NPI number?
- Jennifer Mazza's National Provider Identifier (NPI) is 1366968968, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Mazza's specialty?
- Jennifer Mazza is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Mazza located?
- Jennifer Mazza's practice location on file with NPPES is 2709 W Briggs Ave, Fairfield, IA 52556-2649.
- What is Jennifer Mazza's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Mazza is (319) 356-1616.
- Does Jennifer Mazza accept Medicare?
- Jennifer Mazza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Mazza's NPI active?
- Yes — Jennifer Mazza's NPI (1366968968) is active in the NPPES registry as of the last update on 2024-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.