Registry data as of Aug 27, 2026

John Zabrowski, M.D.

Diagnostic Radiology Physician · Alton, IL

John Zabrowski, M.D. is a diagnostic radiology physician with a practice address in Alton, Illinois, and NPI 1821058397, issued on Mar 27, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821058397
Name
John Zabrowski
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
Practice location
1 Saint Anthonys Way, Alton, IL 62002
Phone
(618) 465-4520
Enumerated
Mar 27, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1 Saint Anthonys Way

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

  1. Katie Albrecht, NP-CNurse Practitioner1528735149
  2. Sara Bennett, LCSWClinical Social Worker1447884481
  3. Natasha Cheek, CRNACertified Registered Nurse Anesthetist1023330057
  4. Carolann Coates, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1568205953
  5. John Conti, PA-CPhysician Assistant1912432766
  6. Kristina Davis, MS CCC-SLPSpeech-Language Pathologist1689986705

Verify John Zabrowski 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.

81% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

13 Medicare Part D claims, against an average of 68 among the 2,907 providers of this specialty who prescribed in Part D.

  1. John Zabrowski13
  2. Specialty average68

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.

Diagnostic Radiology Physician providers in Illinois

There are 1,679 diagnostic radiology physician records in Illinois.

Other diagnostic radiology physician records in Illinois

  1. Samir Abboud, MDChicago, IL1124361324
  2. Ramez Abdalla, M.B., B. CHChicago, IL1407410392
  3. Sarah Abdel-HadiChicago, IL1932846490
  4. Hiroyuki AbeChicago, IL1275684243
  5. Nicole Abedrabbo, MDChicago, IL1629872395
  6. Rita Abejo, MDChicago, IL1477509537
  7. Matthew Abell, M.D.Springfield, IL1568726826
  8. Kinan Abou-Kassem, MDSpringfield, IL1609405026
  9. Srishti Abrol, MDChicago, IL1396240214
  10. Gregory Adamo, M.D.Elk Grove Village, IL1790712347

Common questions

What is John Zabrowski, M.D.'s NPI number?

John Zabrowski, M.D.'s National Provider Identifier (NPI) is 1821058397, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Zabrowski, M.D. located?

The NPPES record lists a practice address at 1 Saint Anthonys Way, Alton, IL, 62002. Phone: (618) 465-4520. Providers update this record themselves, so call before visiting.

How can I verify John Zabrowski, M.D.'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 Zabrowski, M.D. prescribe under Medicare Part D?

In 2024, John Zabrowski, M.D. had 13 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 68. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.