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 · PY2025 · Entire year

$7,634.11

208 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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,555.14 202
Consulting Fee $2,775.00 2
Education $303.97 4

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
AstraZeneca Pharmaceuticals LP $1,943.87 13
BeiGene USA, Inc. $1,139.89 3
Novartis Pharmaceuticals Corporation $363.79 23
PFIZER INC. $251.68 15
Daiichi Sankyo Inc. $238.90 11
Merck Sharp & Dohme LLC $225.07 11
SOBI, INC $221.92 3
Janssen Biotech, Inc. $205.11 8
GlaxoSmithKline, LLC. $197.23 7
ABBVIE INC. $132.83 6
ARRAY BIOPHARMA INC $132.52 6
Genentech USA, Inc. $124.23 7
Regeneron Healthcare Solutions, Inc. $121.00 4
Agios Pharmaceuticals, Inc. $118.92 5
Gilead Sciences, Inc. $104.69 5
Astellas Pharma US Inc $102.80 4
TerSera Therapeutics LLC $102.23 3
Geron Corporation $101.75 3
Celgene Corporation $96.78 4
SpringWorks Therapeutics, Inc. $90.24 3
BeOne Medicines USA, Inc. $86.57 3
SEAGEN INC. $83.99 1
Lilly USA, LLC $82.97 3
Takeda Pharmaceuticals U.S.A., Inc. $76.82 3
GENZYME CORPORATION $72.77 3
Eisai Inc. $67.54 3
PharmaEssentia USA Corporation $62.64 2
Blueprint Medicines Corporation $61.15 2
Azurity Pharmaceuticals, Inc. $61.11 2
Biocon Biologics Inc $54.56 2
Stemline Therapeutics Inc. $53.81 3
Immunocore Limited $53.20 2
Boehringer Ingelheim Pharmaceuticals, Inc. $52.63 2
Alexion Pharmaceuticals, Inc. $47.44 2
Legend Biotech USA Inc. $45.69 2
Aveo Pharmaceuticals, Inc. $44.22 2
Deciphera Pharmaceuticals Inc. $43.78 2
PUMA BIOTECHNOLOGY, INC. $42.68 2
Caris MPI, Inc. $41.93 1
Bayer Healthcare Pharmaceuticals Inc. $40.26 2
Incyte Corporation $37.18 2
Pharmacosmos Therapeutics Inc. $36.68 2
Karyopharm Therapeutics Inc. $34.37 2
ADC THERAPEUTICS AMERICA, INC. $31.88 2
Genmab U.S., Inc. $30.91 1
GE HEALTHCARE $30.82 1
Ipsen Biopharmaceuticals, Inc $30.45 1
JAZZ PHARMACEUTICALS INC. $29.30 1
Amneal Pharmaceuticals LLC $27.38 1
Syndax Pharmaceuticals, Inc. $25.90 1
TAIHO ONCOLOGY, INC. $24.96 1
SHORLA ONCOLOGY INC. $23.84 1
EMD Serono, Inc. $20.30 1
SERVIER PHARMACEUTICALS LLC $20.27 1
Iovance Biotherapeutics, Inc. $19.45 1
ACCORD HEALTHCARE, INC. $19.21 1

Payment records · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

208 matching records · $7,634.11 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 208 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 208.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Agios Pharmaceuticals, Inc. $25.2112/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261253256113 CMS
AstraZeneca Pharmaceuticals LP $23.3112/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206310516 CMS
Karyopharm Therapeutics Inc. $19.1812/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246645271 CMS
GlaxoSmithKline, LLC. $23.4812/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190705779 CMS
Immunocore Limited $28.0112/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235827356 CMS
Janssen Biotech, Inc. $22.6112/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174323046 CMS
PFIZER INC. $29.5912/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261230960469 CMS
Merck Sharp & Dohme LLC $25.0912/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238138783 CMS
ARRAY BIOPHARMA INC $23.2812/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261231059387 CMS
Gilead Sciences, Inc. $21.1511/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234515435 CMS
AstraZeneca Pharmaceuticals LP $1,675.0011/20/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/20261206746771 CMS
Eisai Inc. $21.0611/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244480758 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.9411/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222943066 CMS
Celgene Corporation $25.1311/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184871804 CMS
Merck Sharp & Dohme LLC $27.2011/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238185620 CMS
Regeneron Healthcare Solutions, Inc. $36.9511/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213078022 CMS
Janssen Biotech, Inc. $39.0611/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174322837 CMS
Pharmacosmos Therapeutics Inc. $17.3811/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261250732295 CMS
PUMA BIOTECHNOLOGY, INC. $23.5811/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261251749548 CMS
AstraZeneca Pharmaceuticals LP $20.8511/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206852506 CMS
PUMA BIOTECHNOLOGY, INC. $19.1010/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261251749457 CMS
Novartis Pharmaceuticals Corporation $20.7210/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200409301 CMS
PFIZER INC. $8.7710/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261230945142 CMS
AstraZeneca Pharmaceuticals LP $20.9310/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206192339 CMS
Novartis Pharmaceuticals Corporation $16.3910/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573079 CMS
Agios Pharmaceuticals, Inc. $25.2110/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261253248269 CMS
ABBVIE INC. $15.7210/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261204847135 CMS
AstraZeneca Pharmaceuticals LP $18.8010/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206702430 CMS
Novartis Pharmaceuticals Corporation $8.5110/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573081 CMS
Regeneron Healthcare Solutions, Inc. $23.6310/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261213078020 CMS
Novartis Pharmaceuticals Corporation $3.0810/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573075 CMS
Novartis Pharmaceuticals Corporation $1.1910/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573077 CMS
SpringWorks Therapeutics, Inc. $31.1810/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261232172563 CMS
Genentech USA, Inc. $19.2910/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261211515349 CMS
Novartis Pharmaceuticals Corporation $23.5910/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573073 CMS
ABBVIE INC. $14.4410/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261204847131 CMS
Daiichi Sankyo Inc. $27.4810/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261197030991 CMS
Biocon Biologics Inc $26.8810/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261254659339 CMS
Aveo Pharmaceuticals, Inc. $24.2210/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261199898270 CMS
Novartis Pharmaceuticals Corporation $23.0310/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200573071 CMS
Deciphera Pharmaceuticals Inc. $29.3510/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235961991 CMS
Merck Sharp & Dohme LLC $17.4510/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238184027 CMS
Celgene Corporation $28.5310/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184871788 CMS
Lilly USA, LLC $18.5510/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186562162 CMS
AstraZeneca Pharmaceuticals LP $26.2110/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206621526 CMS
GENZYME CORPORATION $17.3410/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233316100 CMS
Merck Sharp & Dohme LLC $14.1810/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238277491 CMS
Agios Pharmaceuticals, Inc. $32.5809/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261253252390 CMS
Caris MPI, Inc. $41.9309/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234290115 CMS
PFIZER INC. $21.1209/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261230457199 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.