NPPES file of Aug 9, 2026

Marta A. Dudek, M.D.

Internal Medicine Physician · Chicago, IL

Marta A. Dudek, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1083666432, issued on May 16, 2006. Check the license (Illinois 038099703, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083666432
Name
Marta A. Dudek
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
038099703 IL
Self-reported in NPPES; status is on the state search
Practice location
5528 N Milwaukee Ave, Chicago, IL 60630
Phone
(773) 631-2015
Enumerated
May 16, 2006
Record last updated
Sep 16, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(773) 631-2040
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 5528 N Milwaukee Ave

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

  1. Janusz Dudek, MDInternal Medicine Physician1073531570

Verify Marta A. Dudek 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 038099703
    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 internal medicine physician in 2024

83 Medicare Part D claims for 47 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Marta Dudek83
  2. Specialty average3,176

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.

The MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Marta A. Dudek among 7,238 internal medicine physician records in Illinois

Marta A. Dudek, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2011 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Omar Alsamman, M.D.Chicago, IL 606301457319808
  2. Miguel Antonatos, M.D.Chicago, IL 606301912285081
  3. Cory Chen, MDChicago, IL 606301851394548
  4. Janusz Dudek, MDChicago, IL 606301073531570
  5. Victor Forys, M.D.Chicago, IL 606301669585857
  6. Bruce Goldenberg, MDChicago, IL 606301528172236
  7. Peter Lim, DOChicago, IL 606301316477995
  8. Sanjoy Majumdar, MDChicago, IL 606301467495648

Common questions

What is Marta A. Dudek, M.D.'s NPI number?

Marta A. Dudek, M.D.'s National Provider Identifier (NPI) is 1083666432, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marta A. Dudek, M.D. located?

The NPPES record lists a practice address at 5528 N Milwaukee Ave, Chicago, IL, 60630. Phone: (773) 631-2015. Providers update this record themselves, so call before visiting.

How can I verify Marta A. Dudek, M.D.'s license?

NPPES lists Illinois license number 038099703, 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 Marta A. Dudek, M.D. prescribe under Medicare Part D?

In 2024, Marta A. Dudek, M.D. had 83 Medicare Part D claims for 47 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Marta A. Dudek, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.