Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

GHASSAN ZALZALEH

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1992704035
CMS profile
45019
Location
OAK LAWN, IL

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2023 · Entire year

$7,669.57

145 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $4,440.00 1
Food and Beverage $2,899.65 140
Education $329.92 4

By paying entity

PY2023 · entire year · sorted by reported total

Payment records · PY2023

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

145 matching records · $7,669.57 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 145 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 145.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Karyopharm Therapeutics Inc. $19.5212/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056900599 CMS
GE HEALTHCARE $22.8412/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261061199656 CMS
TerSera Therapeutics LLC $35.7212/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052416851 CMS
Novartis Pharmaceuticals Corporation $26.8512/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993309773 CMS
RECORDATI_RARE_DISEASES_INC. $24.8912/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060355781 CMS
E.R. Squibb & Sons, L.L.C. $13.3212/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015439415 CMS
Alexion Pharmaceuticals, Inc. $24.0512/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016975465 CMS
Mirati Therapeutics, Inc. $21.5611/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058006997 CMS
Pharmacyclics LLC, An AbbVie Company $20.9511/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298401 CMS
Incyte Corporation $14.2111/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044427083 CMS
TerSera Therapeutics LLC $30.7511/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261052416855 CMS
Blueprint Medicines Corporation $24.5411/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051281505 CMS
Janssen Biotech, Inc. $17.3611/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988383470 CMS
Alexion Pharmaceuticals, Inc. $17.4211/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261017084565 CMS
Genmab U.S., Inc. $28.6711/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051344605 CMS
Merck Sharp & Dohme LLC $26.7611/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048322409 CMS
GENZYME CORPORATION $22.3911/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049856161 CMS
Janssen Biotech, Inc. $27.3411/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988383447 CMS
Janssen Biotech, Inc. $25.9711/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988383459 CMS
EMD Serono, Inc. $20.1210/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032382675 CMS
Genmab U.S., Inc. $34.3410/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051344607 CMS
Novartis Pharmaceuticals Corporation $28.8110/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993309771 CMS
Blueprint Medicines Corporation $27.5510/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051281485 CMS
Merck Sharp & Dohme LLC $23.2010/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048861551 CMS
AstraZeneca Pharmaceuticals LP $15.2410/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015001317 CMS
Merck Sharp & Dohme LLC $31.7910/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048319705 CMS
Astellas Pharma US Inc $22.2010/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034605637 CMS
BeiGene USA, Inc. $21.9610/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051182963 CMS
Celgene Corporation $18.9510/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015439361 CMS
Karyopharm Therapeutics Inc. $19.1310/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056900595 CMS
Pharmacyclics LLC, An AbbVie Company $20.8110/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298399 CMS
Janssen Biotech, Inc. $25.1310/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988383437 CMS
EMD Serono, Inc. $18.5710/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032368425 CMS
PFIZER INC. $17.8010/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050177053 CMS
Gilead Sciences, Inc. $21.1309/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025776081 CMS
Genentech USA, Inc. $20.5509/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261040369407 CMS
Novartis Pharmaceuticals Corporation $22.2709/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993309769 CMS
Bayer Healthcare Pharmaceuticals Inc. $4,440.0009/22/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000532231 CMS
E.R. Squibb & Sons, L.L.C. $13.8209/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015439293 CMS
Seagen Inc. $19.7009/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995732635 CMS
Blueprint Medicines Corporation $26.4409/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051281189 CMS
Pharmacyclics LLC, An AbbVie Company $23.0509/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298397 CMS
AstraZeneca Pharmaceuticals LP $27.7909/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011721395 CMS
Mirati Therapeutics, Inc. $20.0809/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058006995 CMS
Janssen Biotech, Inc. $21.5509/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988383429 CMS
Lilly USA, LLC $26.9009/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261031473413 CMS
Novartis Pharmaceuticals Corporation $18.9308/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993309767 CMS
AstraZeneca Pharmaceuticals LP $13.7908/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261011690434 CMS
Karyopharm Therapeutics Inc. $20.6608/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056900591 CMS
Mirati Therapeutics, Inc. $18.6108/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058006991 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,195.83 179
PY2020 $1,742.12 90
PY2021 $2,142.13 122
PY2022 $2,122.63 111
PY2023 $7,669.57 145
PY2024 $16,234.09 200
PY2025 $7,634.11 208

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
GHASSAN ZALZALEH, NPI 1992704035. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1992704035.
APA 7
IndustryPayments. (2026). GHASSAN ZALZALEH, NPI 1992704035 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1992704035
Bluebook
GHASSAN ZALZALEH, NPI 1992704035, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1992704035.

Source: Centers for Medicare & Medicaid Services, Open Payments.