NPPES file of Aug 9, 2026

Stuart A. Issleib, MD

Gastroenterology Physician · La Grange Highlands, IL

Stuart A. Issleib, MD is a gastroenterology physician with a practice address in La Grange Highlands, Illinois, and NPI 1497740393, issued on Sep 16, 2005. Check the license (Illinois 036074032, 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
1497740393
Name
Stuart A. Issleib
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036074032 IL
Self-reported in NPPES; status is on the state search
Practice location
5201 Willow Springs RD Ste 450, La Grange Highlands, IL 60525
Phone
(630) 336-7870
Enumerated
Sep 16, 2005
Record last updated
Apr 19, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(312) 328-7986
Medicaid ID
036074032 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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Verify Stuart A. Issleib 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 036074032
    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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96% fewer Medicare Part D claims than the average gastroenterology physician in 2024

33 Medicare Part D claims for 14 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Stuart Issleib33
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium24 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.

Stuart A. Issleib among 887 gastroenterology physician records in Illinois

Stuart A. Issleib, MD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2018 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Illinois

There are 887 gastroenterology physician records in Illinois.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Eugene Chang, MDBurr Ridge, IL 605271346302890
  2. Sujit Janardhan, M.D., PH. D.Burr Ridge, IL 605271902062037
  3. Kevin Khoury, MDOak Brook, IL 605231235662370
  4. Nancy Reau, MDBurr Ridge, IL 605271164585683
  5. Suriya Sastri, M.D.Willowbrook, IL 605271316904816
  6. Carol Semrad, MDBurr Ridge, IL 605271871656389
  7. Irving Waxman, MDBurr Ridge, IL 605271487717906
  8. Carl CalandraHinsdale, IL 605211366527418

Common questions

What is Stuart A. Issleib, MD's NPI number?

Stuart A. Issleib, MD's National Provider Identifier (NPI) is 1497740393, issued on Sep 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stuart A. Issleib, MD located?

The NPPES record lists a practice address at 5201 Willow Springs RD Ste 450, La Grange Highlands, IL, 60525. Phone: (630) 336-7870. Providers update this record themselves, so call before visiting.

How can I verify Stuart A. Issleib, MD's license?

NPPES lists Illinois license number 036074032, 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 Stuart A. Issleib, MD prescribe under Medicare Part D?

In 2024, Stuart A. Issleib, MD had 33 Medicare Part D claims for 14 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.