Istvan Redei, M.D.
Hematology (Internal Medicine) Physician · Chicago, IL
Istvan Redei, M.D. is a hematology (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1306818109, issued on Feb 6, 2006. Check the license (Illinois 036.109262, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Istvan Redei
- Credential
- M.D.
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License number
- 036.109262 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2361 Paysphere Circle, Chicago, IL 60674
- Phone
- (847) 746-4358
- Enumerated
- Feb 6, 2006
- Record last updated
- Mar 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 47 in Illinois → Look up another NPI →
Also registered at 2361 Paysphere Circle
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Choh, M.D.Vascular & Interventional Radiology Physician1588641104
- Dennis Citrin, M.D.Medical Oncology Physician1518944800
- Syed Khalid, D.O.Emergency Medicine Physician1790006393
- Alfonso Mellijor, M.D.Surgical Oncology Physician1356328728
Verify Istvan Redei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.109262Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
17 Medicare Part D claims for 11 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D.
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.
Istvan Redei among 47 hematology (internal medicine) physician records in Illinois
Istvan Redei, M.D. is one of 47 hematology (internal medicine) 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 53% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2015 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in Illinois
There are 47 hematology (internal medicine) physician records in Illinois.
All 47 in Illinois → Every provider in Chicago → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Robert Stein, MDChicago, IL 606931245230309
- Jagoda Jasielec, M.D.Chicago, IL 606371508039249
- Anjana Chandran, MDChicago, IL 606161902292253
- Irene Dehghan-Paz, MDChicago, IL 606121801053905
- Kunal Desai, MD MBA MSChicago, IL 606121982100012
- Deborah Katz, MDChicago, IL 606121396901500
- Hosam Khayal, MDChicago, IL 606121144271206
- Seo-Hyun Kim, M.D.Chicago, IL 606121710253992
Common questions
What is Istvan Redei, M.D.'s NPI number?
Istvan Redei, M.D.'s National Provider Identifier (NPI) is 1306818109, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Istvan Redei, M.D. located?
The NPPES record lists a practice address at 2361 Paysphere Circle, Chicago, IL, 60674. Phone: (847) 746-4358. Providers update this record themselves, so call before visiting.
How can I verify Istvan Redei, M.D.'s license?
NPPES lists Illinois license number 036.109262, 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 Istvan Redei, M.D. prescribe under Medicare Part D?
In 2024, Istvan Redei, M.D. had 17 Medicare Part D claims for 11 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. 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.