NPPES file of Aug 9, 2026

John Shallat

Internal Medicine Physician · Peoria, IL

John Shallat is an internal medicine physician with a practice address in Peoria, Illinois, and NPI 1942381306, issued on Oct 18, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942381306
Name
John Shallat
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
200 E Pennsylvania Ave, Peoria, IL 61603
Phone
(309) 655-7990
Enumerated
Oct 18, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(309) 655-7953
Medicare enrollment
Enrolled (PECOS I20040309001109); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 E Pennsylvania Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Angela Adams, APRNFamily Nurse Practitioner1922687938
  2. Leena Geetha Adhikesavan, M.DInternal Medicine Physician1689735201
  3. Kenneth ArnettAllergy Physician1437249760
  4. Sharon Aycock, PA-CPhysician Assistant1104813997
  5. James Bauer, M.D.Internal Medicine Physician1912901711
  6. Stephanie Beckstrom, APNNurse Practitioner1487127734

Verify John Shallat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,248 Medicare Part D claims for 435 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 128 claims were for opioids.

  1. John Shallat1,248
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium61 claims
  2. Amlodipine Besylate49 claims
  3. Levothyroxine Sodium48 claims
  4. Losartan Potassium43 claims
  5. Morphine Sulfate43 claims
  6. Lorazepam35 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Osf Multi-Specialty GroupPeoria, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John Shallat among 7,238 internal medicine physician records in Illinois

John Shallat is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1996 · median 2003 among the 3,580 with a school on file
  • Record last updated2007 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

173 internal medicine physician records list a practice address in Peoria

They are 173 of the 4,621 NPPES records with a practice address in Peoria, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Leena Geetha Adhikesavan, M.DPeoria, IL 616031689735201
  2. James Bauer, M.D.Peoria, IL 616031912901711
  3. Benito Camacho, MDPeoria, IL 616031477634285
  4. Malini ChavaliPeoria, IL 616031245311778
  5. Dennis Crnkovich, M.D.Peoria, IL 616031831164409
  6. Dean Gravlin, M.D.Peoria, IL 616031053315861
  7. R GulleyPeoria, IL 616031316028855
  8. John HouserPeoria, IL 616031417038852

Common questions

What is John Shallat's NPI number?

John Shallat's National Provider Identifier (NPI) is 1942381306, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Shallat located?

The NPPES record lists a practice address at 200 E Pennsylvania Ave, Peoria, IL, 61603. Phone: (309) 655-7990. Providers update this record themselves, so call before visiting.

How can I verify John Shallat's license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Shallat prescribe under Medicare Part D?

In 2024, John Shallat had 1,248 Medicare Part D claims for 435 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.