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

Individual provider Emergency Medicine Physician · NPI 1225198849

George D. Tsonis, MD practises Emergency Medicine in Rockford, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1997, 29 years ago. Practices with Tri-County Emergency Physicians Ltd, an 18-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
29
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2006
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

2400 N Rockton Ave
Rockford, IL 61103-3655 Not confirmed with CMS for 18 years — call before visiting
Phone: (815) 971-3333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036-100740 (IL)

Record details

NPI number1225198849
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 12, 2006
Last updated in NPPESNovember 1, 2007

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1997 (29 years in practice)
Group practice Tri-County Emergency Physicians Ltd — 18 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 patients461
Services billed 715 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 Tri-County Emergency Physicians Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 9 are shown here.

Other providers in Rockford