Jennifer Hemmelgarn, CNP
NPI 1720394208 · Family Nurse Practitioner · Naperville, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Hemmelgarn, CNP is a Family Nurse Practitioner provider in Naperville, IL (NPI 1720394208).
Provider details
- NPI number
- 1720394208
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- COA.11742-NP (OH)
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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
126 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $103 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 27 | $103 |
| Administration of Influenza Virus VaccineG0008 | 11 | $30 |
Typical Medicare-allowed amounts for these services range $30–$103 (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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 215 | 54 |
| Amlodipine Besylate | 167 | 44 |
| Levothyroxine Sodium | 132 | 31 |
| Omeprazole | 100 | 29 |
| Lisinopril | 96 | 26 |
| Metformin Hcl | 88 | 21 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$549 across 35 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
- 2010-08-23
- Last updated
- 2014-09-08
Frequently asked questions
- What is Jennifer Hemmelgarn's NPI number?
- Jennifer Hemmelgarn's National Provider Identifier (NPI) is 1720394208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Hemmelgarn's specialty?
- Jennifer Hemmelgarn is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Hemmelgarn located?
- Jennifer Hemmelgarn's practice location on file with NPPES is 1220 Hobson Rd, Naperville, IL 60540-8139.
- What is Jennifer Hemmelgarn's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Hemmelgarn is (630) 646-7880.
- Does Jennifer Hemmelgarn accept Medicare?
- Jennifer Hemmelgarn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Hemmelgarn's NPI active?
- Yes — Jennifer Hemmelgarn's NPI (1720394208) is active in the NPPES registry as of the last update on 2014-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.