NPPES file of Aug 9, 2026

Peter Barath, M.D.

Cardiovascular Disease Physician · Oak Brook, IL

Peter Barath, M.D. is a cardiovascular disease physician with a practice address in Oak Brook, Illinois, and NPI 1639418791, issued on Feb 10, 2013. Check the license (Illinois 036091171, 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
1639418791
Name
Peter Barath
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
036091171 IL
Self-reported in NPPES; status is on the state search
Practice location
3 Hampton Dr, Oak Brook, IL 60523
Phone
(630) 850-9441
Enumerated
Feb 10, 2013
Record last updated
Feb 10, 2013 (not updated in 13 years: call before relying on the address or phone)
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 Peter Barath 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 036091171
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

44 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. Peter Barath44
  2. Specialty average3,078

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.

Peter Barath among 1,073 cardiovascular disease physician records in Illinois

Peter Barath, M.D. is one of 1,073 cardiovascular disease 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 2013, is newer than 70% of them.

  • NPI issued2013 · 70% of these records are older, 26% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2013 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Illinois

There are 1,073 cardiovascular disease physician records in Illinois.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Eric Louie, M.D.Oak Brook, IL 605231780947853
  2. Keenan Adib, MDHinsdale, IL 605211790098804
  3. Nazia Alvi, D.O.Hinsdale, IL 605211225455900
  4. George Cotts, M.D.Hinsdale, IL 605211689601171
  5. Noura Dabbouseh, M.D.Hinsdale, IL 605211770882029
  6. Marcin Dobaczewski, MD, PHDHinsdale, IL 605211770859993
  7. George Gibbs, M.D.Hinsdale, IL 605211346287927
  8. Jerome Hines, M.D.Hinsdale, IL 605211639117856

Common questions

What is Peter Barath, M.D.'s NPI number?

Peter Barath, M.D.'s National Provider Identifier (NPI) is 1639418791, issued on Feb 10, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Peter Barath, M.D. located?

The NPPES record lists a practice address at 3 Hampton Dr, Oak Brook, IL, 60523. Phone: (630) 850-9441. Providers update this record themselves, so call before visiting.

How can I verify Peter Barath, M.D.'s license?

NPPES lists Illinois license number 036091171, 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 Peter Barath, M.D. prescribe under Medicare Part D?

In 2024, Peter Barath, M.D. had 44 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.