Jennifer Fitzer, FNP-BC
NPI 1265751838 · Family Nurse Practitioner · Downers Grove, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Fitzer, FNP-BC is a Family Nurse Practitioner provider in Downers Grove, IL (NPI 1265751838).
Provider details
- NPI number
- 1265751838
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 041308450 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service 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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
137 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) |
|---|---|---|
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 49 | $162 |
| Advance Care Planning, First 30 Minutes99497 | 48 | $72 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 | 25 | $176 |
| Hemoglobin A1c Level83036 | 15 | $10 |
Typical Medicare-allowed amounts for these services range $10–$176 (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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 119 | 84 |
| Diphth,pertuss(acell),tet Vacbrand: Boostrix Tdap | 41 | 41 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 1653 W Congress PkwySeven KellogChicago, IL 60612-3833Phone: (312) 563-3835
- 23120 S Lagrange RdFrankfort, IL 60423-7760Phone: (815) 564-5440Fax: (815) 936-5404
- 380 W North StManhattan, IL 60442-9839Phone: (815) 478-4975Fax: (815) 936-9203
- 25711 S Egyptian TrlMonee, IL 60449-8118Phone: (708) 534-7523Fax: (708) 534-7657
Registry dates
- Enumerated
- 2010-05-21
- Last updated
- 2023-11-20
- Certified
- 2023-11-20
Frequently asked questions
- What is Jennifer Fitzer's NPI number?
- Jennifer Fitzer's National Provider Identifier (NPI) is 1265751838, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Fitzer's specialty?
- Jennifer Fitzer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Fitzer located?
- Jennifer Fitzer's practice location on file with NPPES is 1441 Branding Ave Ste 310, Downers Grove, IL 60515-5624.
- What is Jennifer Fitzer's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Fitzer is (630) 829-1038.
- Does Jennifer Fitzer accept Medicare?
- Jennifer Fitzer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Fitzer's NPI active?
- Yes — Jennifer Fitzer's NPI (1265751838) is active in the NPPES registry as of the last update on 2023-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.