Jennifer Marie Hemmelgarn, CNP
Family Nurse Practitioner · Naperville, IL
Jennifer Marie Hemmelgarn, CNP is a family nurse practitioner with a practice address in Naperville, Illinois, and NPI 1720394208, issued on Aug 23, 2010. Check the license (Illinois 209.011496, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jennifer Marie Hemmelgarn
- Credential
- CNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209.011496 IL
COA.11742-NP OH
Self-reported in NPPES; status is on the state search - Practice location
- 1220 Hobson RD, Naperville, IL 60540
- Phone
- (630) 646-7880
- Enumerated
- Aug 23, 2010
- Record last updated
- Sep 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (630) 646-5610
- Medicare enrollment
- Enrolled (PECOS I20101102001402); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 1220 Hobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jennifer Marie Hemmelgarn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209.011496Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,233 Medicare Part D claims for 238 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium215 claims
- Amlodipine Besylate167 claims
- Levothyroxine Sodium132 claims
- Omeprazole100 claims
- Lisinopril96 claims
- Metformin Hcl88 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: $548.75
35 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through one group practice
- Mount Carmel Healthproviders IncWesterville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Marie Hemmelgarn among 7,639 family nurse practitioner records in Illinois
Jennifer Marie Hemmelgarn, CNP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 11% of them.
- NPI issued2010 · 11% of these records are older, 88% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2018 among the 4,778 with a school on file
- Record last updated2014 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 family nurse practitioner records list a practice address in Naperville
They are 100 of the 4,634 NPPES records with a practice address in Naperville, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Naperville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Megan Biederman, NPNaperville, IL 605401316276538
- Michael Coffel, FNP-BCNaperville, IL 605401275795866
- Jessica Harnish, NPNaperville, IL 605401427453539
- Alison Lennhardt, FNP-CNaperville, IL 605401366866501
- Cheryl Lorenzin, NPNaperville, IL 605401417226986
- Shannon Messerges, NP-CNaperville, IL 605401528430725
- Abigail Murphy, APNNaperville, IL 605401164812988
- Jeanne Ondyak, CNPNaperville, IL 605401346202165
Common questions
What is Jennifer Marie Hemmelgarn, CNP's NPI number?
Jennifer Marie Hemmelgarn, CNP's National Provider Identifier (NPI) is 1720394208, issued on Aug 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Marie Hemmelgarn, CNP located?
The NPPES record lists a practice address at 1220 Hobson RD, Naperville, IL, 60540. Phone: (630) 646-7880. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Marie Hemmelgarn, CNP's license?
NPPES lists Illinois license number 209.011496, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Jennifer Marie Hemmelgarn, CNP prescribe under Medicare Part D?
In 2024, Jennifer Marie Hemmelgarn, CNP had 3,233 Medicare Part D claims for 238 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.
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.