Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Justyna Anna Koscielniak, APRN, CNP

Individual provider Gerontology Nurse Practitioner · NPI 1902571235

Justyna Anna Koscielniak, APRN, CNP is a Nurse Practitioner in Peoria, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2021, 5 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
5
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2021
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

1001 Main St Ste 200
Peoria, IL 61606-2035
Phone: (309) 672-5682
Fax: (309) 672-3147
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 530 Ne Glen Oak Ave, Peoria, IL 61637-0001 — (619) 779-1392

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 277004369 (IL)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 209.023771 (IL)

Record details

NPI number1902571235
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , CNP
Sole proprietorNo
NPI enumeratedAugust 10, 2021
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2021 (5 years in practice)
Group practice Osf Multi-Specialty Group — 2128 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients35
Services billed 36 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Osf Multi-Specialty Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2128 clinicians in the practice; 12 are shown here.

Other providers in Peoria