NPPES file of Aug 9, 2026

Lauren L. Fleps, APN, ANP-BC

Nurse Practitioner · Naperville, IL

Lauren L. Fleps, APN, ANP-BC is a nurse practitioner with a practice address in Naperville, Illinois, and NPI 1720210107, issued on Aug 18, 2009. Check the license (Illinois 209007732, 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
1720210107
Name
Lauren L. Fleps
Credential
APN, ANP-BC
Primary taxonomy
Nurse Practitioner 363L00000X
License number
209007732 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Washington St, Naperville, IL 60540
Phone
(630) 527-7979
Enumerated
Aug 18, 2009
Record last updated
Mar 19, 2025
Fax
(630) 527-7925
Medicaid ID
041348428 IL
Medicare enrollment
Enrolled (PECOS I20091113000436); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 801 S Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sean Adams, M.D.Anesthesiology Physician1598713661
  2. Saroosh Ahmed, MDEmergency Medicine Physician1639335078
  3. Faisal Akbari, M.DHospitalist Physician1740598705
  4. Catherine AlerNurse Practitioner1134584964
  5. Irfan Ali, DOHospitalist Physician1306427760
  6. Sivani Aluru, MDObstetrics & Gynecology Physician1275156325

Verify Lauren L. Fleps 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 209007732
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3% fewer Medicare Part D claims than the average nurse practitioner in 2024

1,077 Medicare Part D claims for 154 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Lauren Fleps1,077
  2. Specialty average1,109

Most prescribed

  1. Spironolactone134 claims
  2. Torsemide129 claims
  3. Entresto89 claims
  4. Potassium Chloride82 claims
  5. Jardiance67 claims
  6. Metoprolol Succinate62 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: $993.17

42 payments; by number, the most common kind was food and beverage; the largest payer was United Therapeutics Corporation. 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.

  1. Lauren Fleps$993.17
  2. Specialty average$791.64

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

  1. Endeavor Health Medical GroupEvanston, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lauren L. Fleps among 4,892 nurse practitioner records in Illinois

Lauren L. Fleps, APN, ANP-BC 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 2009, is newer than 17% of them.

  • NPI issued2009 · 17% of these records are older, 82% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2009 · median 2018 among the 3,389 with a school on file
  • Record last updated2025 · 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).

122 nurse practitioner records list a practice address in Naperville

They are 122 of the 4,634 NPPES records with a practice address in Naperville, and 4,892 nurse practitioner records in Illinois.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Rosemarie Batiste, APN-CNPNaperville, IL 605401245434851
  2. Kathi Corral, ARNPNaperville, IL 605401891943007
  3. Caren Corrigan, APRNNaperville, IL 605401225365794
  4. Sandra Davis, APN-CNPNaperville, IL 605401982762720
  5. Mary Digate, APNNaperville, IL 605401356352512
  6. Elizabeth Gall, APN-CNPNaperville, IL 605401689761017
  7. Christine Hopkins, APN-CNPNaperville, IL 605401144481946
  8. Coni Nielson, APN-CNPNaperville, IL 605401831114933

Common questions

What is Lauren L. Fleps, APN, ANP-BC's NPI number?

Lauren L. Fleps, APN, ANP-BC's National Provider Identifier (NPI) is 1720210107, issued on Aug 18, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Lauren L. Fleps, APN, ANP-BC located?

The NPPES record lists a practice address at 801 S Washington St, Naperville, IL, 60540. Phone: (630) 527-7979. Providers update this record themselves, so call before visiting.

How can I verify Lauren L. Fleps, APN, ANP-BC's license?

NPPES lists Illinois license number 209007732, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Lauren L. Fleps, APN, ANP-BC prescribe under Medicare Part D?

In 2024, Lauren L. Fleps, APN, ANP-BC had 1,077 Medicare Part D claims for 154 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.