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

Mark Kelly

Individual provider Diagnostic Radiology Physician · NPI 1770641136

Mark Kelly practises Diagnostic Radiology in Winfield, Illinois. Graduated from Northwestern University Feinberg Medical School in 1992, 34 years ago. Practices with Radiology Subspecialists of Northern Illinois LLC, a 32-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
34
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2006
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Practice location Address checks out

25 N Winfield Rd
Winfield, IL 60190 Not confirmed with CMS for 19 years — call before visiting
Phone: (630) 933-4240
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 036091461 (IL)

Record details

NPI number1770641136
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESJuly 9, 2007

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1992 (34 years in practice)
Group practice Radiology Subspecialists Of Northern Illinois Llc — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients1,728
Services billed 2,587 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

Colleagues at Radiology Subspecialists of Northern Illinois LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

Other providers in Winfield