NPPES file of Aug 9, 2026

Kelsey Peifer, DNP, FNP-BC, APRN

Nurse Practitioner · Sycamore, IL

Kelsey Peifer, DNP, FNP-BC, APRN is a nurse practitioner with a practice address in Sycamore, Illinois, and NPI 1437810876, issued on Jan 7, 2022. Check the license (Illinois 209024180, 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
1437810876
Name
Kelsey Peifer
Credential
DNP, FNP-BC, APRN
Primary taxonomy
Nurse Practitioner 363L00000X
License number
209024180 IL
Self-reported in NPPES; status is on the state search
Practice location
165 E Plank RD, Sycamore, IL 60178
Phone
(844) 599-3700
Enumerated
Jan 7, 2022
Record last updated
Aug 19, 2024
Medicare enrollment
Enrolled (PECOS I20240830002933); accepts Medicare assignment
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 165 E Plank RD

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

  1. Jessica Anderson, FNP-BCNurse Practitioner1023681079
  2. Khadeeja Khan, PA-CPhysician Assistant1316871288
  3. Tara Kristiansen, APRNFamily Nurse Practitioner1902539463
  4. Jennifer McCormick, M.D.Gynecology Physician1548272685
  5. Amber Sayles, PA-CPhysician Assistant1679211551
  6. Kolawole Sofowora, M.D.Pediatrics Physician1124434964

Verify Kelsey Peifer 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 209024180
    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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58% fewer Medicare Part D claims than the average nurse practitioner in 2024

467 Medicare Part D claims for 132 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Kelsey Peifer467
  2. Specialty average1,109

Most prescribed

  1. Methylprednisolone24 claims
  2. Albuterol Sulfate Hfa20 claims
  3. Atorvastatin Calcium18 claims
  4. Lisinopril18 claims
  5. Sertraline Hcl17 claims
  6. Prednisone12 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.

Bills Medicare through one group practice

  1. Central Dupage Physician GroupGeneva, IL

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

Kelsey Peifer among 4,892 nurse practitioner records in Illinois

Kelsey Peifer, DNP, FNP-BC, APRN 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 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 20% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2018 among the 3,389 with a school on file
  • Record last updated2024 · 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).

29 nurse practitioner records list a practice address in Sycamore

They are 29 of the 549 NPPES records with a practice address in Sycamore, and 4,892 nurse practitioner records in Illinois.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Heidi Beckstrom, APNSycamore, IL 601781740516541
  2. Angelica Bellisario, APRN, CNPSycamore, IL 601781457695272
  3. Jamie Gibson, APN, NP-CSycamore, IL 601781174067227
  4. Marie Gonzalez, APRN,CNPSycamore, IL 601781992108666
  5. Michelle Gosnell, APRNSycamore, IL 601781528601127
  6. Andrew Hornung, APN-CNPSycamore, IL 601781265897755
  7. Ma Vanessa Mabazza, APRN,NP-C,AGPCNP-BCSycamore, IL 601781780175380
  8. Jessica Moede, APRNSycamore, IL 601781457815938

Common questions

What is Kelsey Peifer, DNP, FNP-BC, APRN's NPI number?

Kelsey Peifer, DNP, FNP-BC, APRN's National Provider Identifier (NPI) is 1437810876, issued on Jan 7, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Kelsey Peifer, DNP, FNP-BC, APRN located?

The NPPES record lists a practice address at 165 E Plank RD, Sycamore, IL, 60178. Phone: (844) 599-3700. Providers update this record themselves, so call before visiting.

How can I verify Kelsey Peifer, DNP, FNP-BC, APRN's license?

NPPES lists Illinois license number 209024180, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Kelsey Peifer, DNP, FNP-BC, APRN prescribe under Medicare Part D?

In 2024, Kelsey Peifer, DNP, FNP-BC, APRN had 467 Medicare Part D claims for 132 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.