Doctor profile · Federal record

Dr. BENJAMIN MASSAT

Hematology & Oncology Physician · MAYWOOD, IL

  • NPI 1659909711
  • 6 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2160 S 1ST AVE
MAYWOOD, IL 601533328
(888) 584-7888

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
June 23, 2023
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Illinois #036165424

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659909711. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$185
Transactions
4
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
GENZYME CORPORATION 1 $104.09
Alexion Pharmaceuticals, Inc. 1 $32.51
Incyte Corporation 1 $28.43
Janssen Pharmaceuticals, Inc 1 $19.91

By nature of payment

Food and Beverage
$185

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
0
Total drug cost
$112
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 11 0 $112

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated May 21, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›