Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Brett Anthony Kosowski, DO
Pediatrics Physician in Peoria, IL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942996384
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Registry record
Entity type Individual (Type 1)
Name Brett Anthony Kosowski
Credential DO
Sex Male
Practice address 530 Ne Glen Oak Ave, Peoria, IL, 61637
Phone (309) 655-7171
Enumeration date Apr 17, 2023
Last updated in NPPES Jul 17, 2026
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 036180569 (IL) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Brett Kosowski?
The National Provider Identifier (NPI) for Brett Kosowski is 1942996384, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brett Kosowski practice?
The practice location on file with NPPES is in Peoria, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jack Gibson Obstetrics & Gynecology Physician · Peoria, IL NPI 1346235777 Cara Phillips Pharmacist · Peoria, IL NPI 1801881446 Mary Ross Pediatric Hematology & Oncology Physician · Peoria, IL NPI 1841287588 Samir Saxena Internal Medicine Physician · Peoria, IL NPI 1902883648 Clarissa Rhode Diagnostic Radiology Physician · Peoria, IL NPI 1326026030 Robert Mcwilliams Medical Oncology Physician · Peoria, IL NPI 1487633962 University of Illinois Internal Medicine Physician · Peoria, IL NPI 1255301909 University of Illinois Pediatric Critical Care Medicine Physician · Peoria, IL NPI 1205807187
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-17.