NPPES file of Aug 9, 2026

Dariusz A. Hareza, MD

Infectious Disease Physician · Chicago, IL

Dariusz A. Hareza, MD is an infectious disease physician with a practice address in Chicago, Illinois, and NPI 1760975932, issued on Jun 12, 2018. Check the license (Illinois 036166826, 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
1760975932
Name
Dariusz A. Hareza
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
036166826 IL
Self-reported in NPPES; status is on the state search
Practice location
676 N Saint Clair St Ste 940, Chicago, IL 60611
Phone
(312) 926-8358
Enumerated
Jun 12, 2018
Record last updated
Sep 4, 2024
Fax
(312) 926-9630
Medicare enrollment
Enrolled (PECOS I20240711003326); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2018
Telehealth
Offers telehealth (CMS)
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 676 N Saint Clair St Ste 940

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

  1. Maureen Bolon, MDInfectious Disease Physician1851368773
  2. Diana Cano, NURSE PRACTITIONERNurse Practitioner1891338216
  3. Alexandre Carvalho, MD, MPHHospitalist Physician1386140325
  4. Joshua Craft, MDInfectious Disease Physician1023514791
  5. Muhammad Dhanani, M.D.Infectious Disease Physician1962761809
  6. Alexis Guenette, D.O.Infectious Disease Physician1184979700

Verify Dariusz A. Hareza 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 036166826
    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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92% fewer Medicare Part D claims than the average infectious disease physician in 2024

58 Medicare Part D claims for 15 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Dariusz Hareza58
  2. Specialty average689

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. Northwestern Medical Faculty FoundationChicago, IL

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

Infectious Disease Physician providers in Illinois

There are 464 infectious disease physician records in Illinois.

Other infectious disease physician records in Illinois

  1. Homer Abiad, M.D.Oak Forest, IL1871596817
  2. Annette Abraham, MDChicago, IL1083195093
  3. Chad Achenbach, MDChicago, IL1548278674
  4. Mary Acree, M.D.Evanston, IL1336378348
  5. Tinuola Adeyanju, M.D.Chicago, IL1063413755
  6. Oluwadamilola Adeyemi, MDChicago, IL1376700955
  7. Emily Adochio-Clancy, MDChicago, IL1629606975
  8. Nozaina Aftab, MDLombard, IL1629158662
  9. Javier Aguilar Aragon, M.D.Burr Ridge, IL1336359058
  10. Nooruzsabha Ahmed, M.D.Elgin, IL1407886401

Common questions

What is Dariusz A. Hareza, MD's NPI number?

Dariusz A. Hareza, MD's National Provider Identifier (NPI) is 1760975932, issued on Jun 12, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Dariusz A. Hareza, MD located?

The NPPES record lists a practice address at 676 N Saint Clair St Ste 940, Chicago, IL, 60611. Phone: (312) 926-8358. Providers update this record themselves, so call before visiting.

How can I verify Dariusz A. Hareza, MD's license?

NPPES lists Illinois license number 036166826, 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 Dariusz A. Hareza, MD prescribe under Medicare Part D?

In 2024, Dariusz A. Hareza, MD had 58 Medicare Part D claims for 15 beneficiaries; the average among infectious disease physician prescribers was 689. 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.