NPPES file of Aug 9, 2026

Alexander Jablonowski, M.D.

Occupational Medicine Physician · McHenry, IL

Alexander Jablonowski, M.D. is an occupational medicine physician with a practice address in McHenry, Illinois, and NPI 1497807630, issued on Jan 17, 2007. Check the license (Illinois 336-014672, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1497807630
Name
Alexander Jablonowski
Credential
M.D.
Primary taxonomy
Occupational Medicine Physician 2083X0100X
License number
336-014672 IL
Self-reported in NPPES; status is on the state search
Practice location
4309 W Medical Center Dr Ste B300, McHenry, IL 60050
Phone
(815) 759-4224
Enumerated
Jan 17, 2007
Record last updated
Nov 2, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(815) 363-0136
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 4309 W Medical Center Dr Ste B300

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

  1. Margaret Sorrells, PA-CMedical Physician Assistant1164573374

Verify Alexander Jablonowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 336-014672
    Check 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

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Occupational Medicine Physician providers in Illinois

There are 80 occupational medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other occupational medicine physician records in Illinois

  1. Tabasum Amir, M.D.Park Ridge, IL1891883641
  2. Stella Anozie, M.D.Crystal Lake, IL1720130966
  3. Mark Austin, DOHerrin, IL1780754127
  4. Bethany Bouldin, MDChicago, IL1356192637
  5. George Bridgeforth, M.D.Franklin Park, IL1306968110
  6. John Briggs, DOSpringfield, IL1114276607
  7. Ramon Castillo, M.D.Elk Grove Village, IL1124130083
  8. Philbert Chen, MDUrbana, IL1073548970
  9. Howard Chey, M.D.North Chicago, IL1922207489
  10. Gregory Clem, M.D.Springfield, IL1407949993

Common questions

What is Alexander Jablonowski, M.D.'s NPI number?

Alexander Jablonowski, M.D.'s National Provider Identifier (NPI) is 1497807630, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Jablonowski, M.D. located?

The NPPES record lists a practice address at 4309 W Medical Center Dr Ste B300, McHenry, IL, 60050. Phone: (815) 759-4224. Providers update this record themselves, so call before visiting.

How can I verify Alexander Jablonowski, M.D.'s license?

NPPES lists Illinois license number 336-014672, as entered by the provider. 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.