Doctor profile · Federal record

Dr. BRUCE GERSHENHORN, D.O.

Hematology & Oncology Physician (CMS: MEDICAL ONCOLOGY) · Medical Oncology Physician · Hematology & Oncology Physician · DOWNERS GROVE, IL

  • NPI 1588796478
  • Accepts Medicare
  • 25 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
3745 HIGHLAND AVE FL 2
DOWNERS GROVE, IL 605151584
(630) 275-2300
Additional location
1221 N Highland Ave
Aurora, IL 605061404
(630) 859-8700
Additional location
4305 W Medical Center Dr Ste 1
McHenry, IL 600508425
(815) 759-8100
fax (815) 759-8106
Mailing address
29373 NETWORK PL
CHICAGO, IL 606731293

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
September 30, 2024
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State licenses (2)
Illinois #036127065 · New York #231510

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588796478. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
862
Distinct HCPCS
6
Medicare allowed
$66,880
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 341 232 $100
36415 Insertion of needle into vein for collection of blood sample 309 165 $8
99215 Established patient office or other outpatient visit, 40-54 minutes 121 81 $145
99204 New patient office or other outpatient visit, 45-59 minutes 48 48 $138
99205 New patient office or other outpatient visit, 60-74 minutes 23 23 $188
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 20 14 $82

In context: peer comparison

Among 3 peers in this city , average services per provider: 134. This provider delivers 6.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$164
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 1 $125.01
Gilead Sciences, Inc. 2 $39.24

By nature of payment

Food and Beverage
$164

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
192
Patients
45
Total drug cost
$87,046
Drug Type Claims Patients Total cost
Xarelto (Rivaroxaban) Brand 48 15 $54,822
Eliquis (Apixaban) Brand 37 15 $29,656
Hydroxyurea Generic 27 0 $1,400
Anastrozole Generic 23 0 $344
Prochlorperazine Maleate Generic 18 15 $150
Prednisone Generic 16 0 $188
Dexamethasone Generic 12 0 $178
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 11 0 $309

Hospital affiliations

CMS Hospital Compare