Doctor profile · Federal record

Dr. Istvan Redei, M.D.

Hematology (Internal Medicine) Physician · Specialist · Chicago, IL

  • NPI 1306818109
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2361 Paysphere Circle
Chicago, IL 60674
(847) 746-4358
Mailing address
2520 Elisha Avenue
Zion, IL 60099

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
March 6, 2015
Specialty taxonomy
207RH0000X — NUCC code
State license (1)
Illinois #036.109262

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1306818109. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
216
Distinct HCPCS
4
Medicare allowed
$18,021
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 126 69 $68
99214 Established patient office or other outpatient visit, 30-39 minutes 66 49 $101
99215 Established patient office or other outpatient visit, 40-54 minutes 13 11 $148
38222 Biopsy and aspiration of bone marrow sample for diagnosis 11 11 $78

In context: peer comparison

Among 8 peers in Chicago Hematology (Internal Medicine) Physician, average services per provider: 404. This provider delivers 0.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
348
Patients
52
Total drug cost
$2,228,234
Drug Type Claims Patients Total cost
Acyclovir Generic 117 40 $2,746
Calquence (Acalabrutinib Maleate) Brand 25 0 $338,572
Revlimid (Lenalidomide) Brand 25 0 $436,180
Xembify (Immune Globulin,Gamma(Igg)Klhw) Brand 24 0 $53,593
Pomalyst (Pomalidomide) Brand 21 0 $519,484
Potassium Chloride Generic 18 0 $234
Imbruvica (Ibrutinib) Brand 17 0 $266,999
Levofloxacin Generic 16 12 $185
Venclexta (Venetoclax) Brand 16 0 $201,593
Lenalidomide Generic 15 0 $222,180

Frequently asked questions

Auto-generated from federal data
What is Dr. Istvan Redei's medical specialty?
Dr. Istvan Redei practices Hematology (Internal Medicine) Physician in Chicago, IL.
Where does Dr. Istvan Redei practice?
Dr. Istvan Redei practices at 2361 Paysphere Circle, Chicago, IL 60674. Office phone: 8477464358.
What is Dr. Istvan Redei's NPI?
Dr. Istvan Redei's National Provider Identifier (NPI) is 1306818109, issued by NPPES.
What procedures does Dr. Istvan Redei commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.