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

John Shallat

Individual provider Internal Medicine Physician · NPI 1942381306

John Shallat practises Internal Medicine in Peoria, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1996, 30 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
30
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2006
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Practice location Address checks out

200 E Pennsylvania Ave
Peoria, IL 61603-3089 Not confirmed with CMS for 19 years — call before visiting
Phone: (309) 655-7990
Fax: (309) 655-7953
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X (IL)

Record details

NPI number1942381306
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 18, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1996 (30 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 patients24
Services billed 40 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

  • Saint Francis Medical Center Hospital · Peoria, IL
  • Osf Hospice Hospice · Peoria, IL
  • Osf Hospice Hospice · Loves Park, IL
  • Osf Hospice - Eastern Region Hospice · Bloomington, IL
  • Osf Hospice - Urbana Hospice · Champaign, IL

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