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

Individual provider Surgery Physician · NPI 1841717345

Dr. Jonathan Vonk, MD practises Diagnostic Radiology in Springfield, Illinois. Qualified in 2017, 9 years ago. Practices with Central Illinois Radiological Associates Ltd, a 204-clinician group and accepts Medicare assignment. Licensed in Illinois and Nebraska.

Years since qualifying
9
Licensed in
IL, NE
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

800 E Carpenter St
Springfield, IL 62769-2353
Phone: (217) 544-6464
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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 036-161807 (IL)
Surgery Physician Taxonomy 208600000X · Licence 8095 (NE)

Record details

NPI number1841717345
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 24, 2017
Last updated in NPPESMay 6, 2025
Certification dateMay 6, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Central Illinois Radiological Associates Ltd — 204 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients630
Services billed 1,018 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. Those with a page here are linked.

  • St Anthonys Memorial Hospital Hospital · Effingham, IL · listed as St Anthonys Memorial Hospital of the Hospital Sisters of the Third
  • Hshs St Elizabeth'S Hospital Hospital · O Fallon, IL
  • St Johns Hospital Hospital · Springfield, IL
  • St Josephs Hospital Hospital · Breese, IL
  • St Marys Hospital Hospital · Decatur, IL

Colleagues at Central Illinois Radiological Associates Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 204 clinicians in the practice; 12 are shown here.

Other providers in Springfield