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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

BRETT ANTHONY KOSOWSKI DO
NPI 1942996384
Pediatrics in Peoria, IL

Active since April 17, 2023PECOS Enrolled
530 NE GLEN OAK AVE, PEORIA, IL 61637(309) 655-7171 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 17, 2026, Jul 6, 2026 (2 updates tracked since 2026).

About Brett Anthony Kosowski Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRETT ANTHONY KOSOWSKI DO (NPI 1942996384) is an individual pediatrics provider in Peoria, Illinois, licensed in Illinois (036180569) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942996384
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameBRETT ANTHONY KOSOWSKICredential: DO
Location Address530 NE GLEN OAK AVEPeoria, IL 61637-0001
Mailing Address233 John DrBartlett, IL 60103-8613 · (630) 965-3519
Phone(309) 655-7171
Sole ProprietorNo
Enumeration DateApril 17, 2023
Last NPPES UpdateJuly 17, 20262 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
✔ NPI 1942996384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036180569
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
530 NE GLEN OAK AVE, Peoria, IL 61637
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brett Anthony Kosowski Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DEEPAK S NAIR M.D.
Psychiatry & Neurology (Neurology)
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2000
DR. HAMID MAHMOOD ZIA M.D
Pathology (Anatomic Pathology & Clinical Pathology)
530 NE GLEN OAK AVE, CENTRAL ILLINOIS PATHOLOGY SC
PEORIA, IL 61637
Peoria County (309) 624-9011
THOMAS JAMES MCMORROW MD
Pediatrics
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2553
ALEXANDRA ROPER MD
Surgery
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2000
JAPMEHR KAUR SANDHU M.B.B.S.
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 624-9351
THOMAS BLACKWELL JR. MD
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2000
LUKE KLOFT
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-2109
ABIGAIL V. WELU DO
Student in an Organized Health Care Education/Training Program
530 NE GLEN OAK AVE
PEORIA, IL 61637
Peoria County (309) 655-6710

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brett Kosowski's NPI number?

The NPI number for Brett Kosowski is 1942996384. It was assigned to this individual provider in the NPPES registry on April 17, 2023.

Where is Brett Kosowski located?

Brett Kosowski practices at 530 NE Glen Oak Ave, Peoria, IL 61637. The listed phone number is (309) 655-7171.

What is Brett Kosowski's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Brett Kosowski enrolled in Medicare?

Yes. Brett Kosowski is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Brett Kosowski was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.