Jennifer Duffy, APN-CNP
Nurse Practitioner · Elmhurst, IL
Jennifer Duffy, APN-CNP is a nurse practitioner with a practice address in Elmhurst, Illinois, and NPI 1649557927, issued on Nov 14, 2011. Check the license (Illinois 209009133, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jennifer Duffy
- Credential
- APN-CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 209009133 IL
209.009133 IL
Self-reported in NPPES; status is on the state search - Practice location
- 155 E Brush Hill RD, Elmhurst, IL 60126
- Phone
- (630) 646-2273
- Enumerated
- Nov 14, 2011
- Record last updated
- Apr 6, 2026
- Fax
- (331) 221-3858
- Medicare enrollment
- Enrolled (PECOS I20111222000384); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →
Also registered at 155 E Brush Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jennifer Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209009133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average nurse practitioner in 2024
651 Medicare Part D claims for 120 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 431 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen139 claims
- Morphine Sulfate Er108 claims
- Morphine Sulfate53 claims
- Gabapentin42 claims
- Tramadol Hcl42 claims
- Oxycodone Hcl28 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $249.22
7 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 38,884 providers of this specialty with any payment received $791.64 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
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Duffy among 4,892 nurse practitioner records in Illinois
Jennifer Duffy, APN-CNP is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 20% of them.
- NPI issued2011 · 20% of these records are older, 78% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2018 among the 3,389 with a school on file
- Record last updated2026 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
68 nurse practitioner records list a practice address in Elmhurst
They are 68 of the 1,540 NPPES records with a practice address in Elmhurst, and 4,892 nurse practitioner records in Illinois.
All 4,892 in Illinois → Every provider in Elmhurst → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Janyce Agruss, DNSC, APN, FNPElmhurst, IL 601261821133539
- Emily Barszcz, APN-CNPElmhurst, IL 601261407100381
- Elizabeth Clay, APN-CNPElmhurst, IL 601261235411695
- Michelle Domanchuk, APNElmhurst, IL 601261184665010
- Delia Lacavera, APNElmhurst, IL 601261174718787
- Maribeth Maney, APN-CNPElmhurst, IL 601261619260304
- Tiffani McKenna, APN-CNPElmhurst, IL 601261750697447
- Kristine Montero Nichols, APN-CNPElmhurst, IL 601261356614796
Common questions
What is Jennifer Duffy, APN-CNP's NPI number?
Jennifer Duffy, APN-CNP's National Provider Identifier (NPI) is 1649557927, issued on Nov 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Duffy, APN-CNP located?
The NPPES record lists a practice address at 155 E Brush Hill RD, Elmhurst, IL, 60126. Phone: (630) 646-2273. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Duffy, APN-CNP's license?
NPPES lists Illinois license number 209009133, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Jennifer Duffy, APN-CNP prescribe under Medicare Part D?
In 2024, Jennifer Duffy, APN-CNP had 651 Medicare Part D claims for 120 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Jennifer Duffy, APN-CNP's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.