NPPES file of Aug 9, 2026

Irum Shahab, M.D.

Nephrology Physician · Aurora, IL

Irum Shahab, M.D. is a nephrology physician with a practice address in Aurora, Illinois, and NPI 1811165962, issued on Feb 12, 2008. Check the license (Illinois 036119635, 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
1811165962
Name
Irum Shahab
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
036119635 IL
2006023096 MO
Self-reported in NPPES; status is on the state search
Practice location
4100 Healthway Dr, Aurora, IL 60504
Phone
(630) 851-3105
Enumerated
Feb 12, 2008
Record last updated
Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(630) 978-6669
Medicare enrollment
Enrolled (PECOS I20081010000389); accepts Medicare assignment
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 4100 Healthway Dr

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

  1. Huma Abbas, M.D.Psychiatry Physician1609039163
  2. Michael Agro, DPT, PTPhysical Therapist1104516343
  3. Sara Bealert, PAMedical Physician Assistant1134115330
  4. Fatimah BhuiyanBehavior Technician1083541478
  5. Elizabeth Brandon, DOFamily Medicine Physician1659302347
  6. Autumn Bryant, M.A., CCC-SLP/LSpeech-Language Pathologist1063829661

Verify Irum Shahab 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 036119635
    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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31% more Medicare Part D claims than the average nephrology physician in 2024

1,923 Medicare Part D claims for 307 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Irum Shahab1,923
  2. Specialty average1,465

Most prescribed

  1. Calcitriol280 claims
  2. Furosemide212 claims
  3. Hydralazine Hcl162 claims
  4. Losartan Potassium145 claims
  5. Potassium Chloride109 claims
  6. Amlodipine Besylate101 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. Advocate Health And Hospitals CorporationAurora, IL

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

Nephrology Physician providers in Illinois

There are 572 nephrology physician records in Illinois.

Other nephrology physician records in Illinois

  1. Momen Abbasi, M.D.Chicago, IL1184472268
  2. Ahmed AbdouHarvey, IL1821526492
  3. Mohan Abraham, MDChicago, IL1144550088
  4. Pabitra Adhikari, MDChicago, IL1427629740
  5. Bhavani Adusumilli, MDSpringfield, IL1568792604
  6. Vikram Aggarwal, M.DChicago, IL1316235583
  7. Akansha Agrawal, MDChicago, IL1396280905
  8. Kireet Agrawal, MDChicago, IL1780831719
  9. Fayzan Ahmad, MDChicago, IL1376005835
  10. Mashood Ahmad, MDRockford, IL1043232846

Common questions

What is Irum Shahab, M.D.'s NPI number?

Irum Shahab, M.D.'s National Provider Identifier (NPI) is 1811165962, issued on Feb 12, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Irum Shahab, M.D. located?

The NPPES record lists a practice address at 4100 Healthway Dr, Aurora, IL, 60504. Phone: (630) 851-3105. Providers update this record themselves, so call before visiting.

How can I verify Irum Shahab, M.D.'s license?

NPPES lists Illinois license number 036119635, 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 Irum Shahab, M.D. prescribe under Medicare Part D?

In 2024, Irum Shahab, M.D. had 1,923 Medicare Part D claims for 307 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.