NPPES file of Aug 9, 2026

Julia Zelenik, NURSE PRACTITIONER

Family Nurse Practitioner · Darien, IL

Julia Zelenik, NURSE PRACTITIONER is a family nurse practitioner with a practice address in Darien, Illinois, and NPI 1164073599, issued on Sep 26, 2019. Check the license (Illinois 209018468, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164073599
Name
Julia Zelenik
Credential
NURSE PRACTITIONER
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209018468 IL
Self-reported in NPPES; status is on the state search
Practice location
9255 Waterfall Glen Blvd, Darien, IL 60561
Phone
(630) 880-2416
Enumerated
Sep 26, 2019
Record last updated
Sep 26, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →

Verify Julia Zelenik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209018468    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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67% fewer Medicare Part D claims than the average family nurse practitioner in 2024

428 Medicare Part D claims for 49 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Julia Zelenik428
  2. Specialty average1,305

Most prescribed

  1. Anoro Ellipta110 claims
  2. Entresto23 claims
  3. Cyclobenzaprine Hcl19 claims
  4. Atorvastatin Calcium18 claims
  5. Midodrine Hcl18 claims
  6. Albuterol Sulfate Hfa15 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.

Julia Zelenik among 7,639 family nurse practitioner records in Illinois

Julia Zelenik, NURSE PRACTITIONER 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 2019, is newer than 51% of them.

  • NPI issued2019 · 51% of these records are older, 41% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2019 · 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).

3 family nurse practitioner records list a practice address in Darien

They are 3 of the 389 NPPES records with a practice address in Darien, and 7,639 family nurse practitioner records in Illinois.

All 7,639 in Illinois → Every provider in Darien → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Bissy Kumpuckal, NPDarien, IL 605611053784645
  2. Uchechukwu Okoroigwe, FNPDarien, IL 605611528912938
  3. Elizabeth Breier, APNYorkville, IL 605601215273800
  4. Joni Cave, APNYorkville, IL 605601841343001
  5. Diane Craig, FNP-BCYorkville, IL 605601285181149
  6. Adam Estrada, NURSE PRACTITIONERYorkville, IL 605601083126619
  7. Sandra Gonzales, APN/FNP-BCYorkville, IL 605601053691915
  8. Robin Horaz, FNP-BCYorkville, IL 605601245661008

Common questions

What is Julia Zelenik, NURSE PRACTITIONER's NPI number?

Julia Zelenik, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1164073599, issued on Sep 26, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Julia Zelenik, NURSE PRACTITIONER located?

The NPPES record lists a practice address at 9255 Waterfall Glen Blvd, Darien, IL, 60561. Phone: (630) 880-2416. Providers update this record themselves, so call before visiting.

How can I verify Julia Zelenik, NURSE PRACTITIONER's license?

NPPES lists Illinois license number 209018468, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Julia Zelenik, NURSE PRACTITIONER prescribe under Medicare Part D?

In 2024, Julia Zelenik, NURSE PRACTITIONER had 428 Medicare Part D claims for 49 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.