NPPES file of Aug 9, 2026

Stewart R. Mann, M.D.

Critical Care Medicine (Internal Medicine) Physician · Oakbrook Terrace, IL

Stewart R. Mann, M.D. is a critical care medicine (internal medicine) physician with a practice address in Oakbrook Terrace, Illinois, and NPI 1174533442, issued on Aug 9, 2006. Check the license (Illinois 036055751, as entered in NPPES) 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
1174533442
Name
Stewart R. Mann
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
036055751 IL
Self-reported in NPPES; status is on the state search
Practice location
1901 S Meyers RD Ste 410B, Oakbrook Terrace, IL 60181
Phone
(630) 634-9340
Enumerated
Aug 9, 2006
Record last updated
Jun 26, 2025
Medicaid ID
036055751 IL
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 1901 S Meyers RD Ste 410B

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

  1. Antanas Razma, MDCritical Care Medicine (Internal Medicine) Physician1265413454

Verify Stewart R. Mann 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 036055751
    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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97% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

20 Medicare Part D claims, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Stewart Mann20
  2. Specialty average696

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.

Stewart R. Mann among 281 critical care medicine (internal medicine) physician records in Illinois

Stewart R. Mann, M.D. is one of 281 critical care medicine (internal medicine) physician records with a practice address in Illinois. 92% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 71% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileNo · 80% of these records are
  • Record last updated2025 · 22% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Illinois

There are 281 critical care medicine (internal medicine) physician records in Illinois.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Antanas Razma, MDOakbrook Terrace, IL 601811265413454
  2. Bartosz Buchcic, M.D.Winfield, IL 601901720303381
  3. Jonathan Cooke, M.D.Winfield, IL 601901235384298
  4. Carmel Goudzwaard, M.D.Winfield, IL 601901851547194
  5. Neal Greenfield, MDWinfield, IL 601901700094364
  6. Jeffrey Huml, MDWinfield, IL 601901407807035
  7. Katarzyna Kaczmarczyk, M.D.Winfield, IL 601901275979692
  8. Felix Ling, MDWinfield, IL 601901477728715

Common questions

What is Stewart R. Mann, M.D.'s NPI number?

Stewart R. Mann, M.D.'s National Provider Identifier (NPI) is 1174533442, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stewart R. Mann, M.D. located?

The NPPES record lists a practice address at 1901 S Meyers RD Ste 410B, Oakbrook Terrace, IL, 60181. Phone: (630) 634-9340. Providers update this record themselves, so call before visiting.

How can I verify Stewart R. Mann, M.D.'s license?

NPPES lists Illinois license number 036055751, 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.

How much does Stewart R. Mann, M.D. prescribe under Medicare Part D?

In 2024, Stewart R. Mann, M.D. had 20 Medicare Part D claims; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.