Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Justin Kosirog

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1255726238

Justin Kosirog is an Internal Medicine in Oklahoma City, Oklahoma. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2015, 11 years ago. Practices with Illinois Gastroenterology Group LLC, a 116-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
11
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
OK
In the registry since
2015
Specialties on file
2
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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Oklahoma City, OK

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 1740 W Taylor St, Chicago, IL 60612-7232 — (866) 600-2273

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 35686 (OK)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1255726238
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 6, 2015
Last updated in NPPESMay 27, 2020
Certification dateMay 27, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2015 (11 years in practice)
Group practice Illinois Gastroenterology Group Llc — 116 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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