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.

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General Payments · PY2019 · Entire year

$3,195.83

179 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,010.75 175
Education $185.08 4

By paying entity

PY2019 · entire year · sorted by reported total

Page 2 of 4; records 51–100 of 179 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

GHASSAN ZALZALEH

NPI 1992704035 · CMS profile ID 45019

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

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.

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.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 2 of 4; records 51–100 of 179 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1992704035?year=2019&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
GHASSAN ZALZALEH, NPI 1992704035, CMS profile ID 45019. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 2 of 4; records 51–100 of 179 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1992704035?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). GHASSAN ZALZALEH, NPI 1992704035, CMS profile ID 45019. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 2 of 4; records 51–100 of 179 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1992704035?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
GHASSAN ZALZALEH, NPI 1992704035, CMS profile ID 45019, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 2 of 4; records 51–100 of 179 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1992704035?year=2019&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

179 matching records · $3,195.83 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 179 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 51–100 of 179.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Merck Sharp & Dohme Corporation $72.1509/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695752211 CMS
Secura Bio, Inc. $19.0309/23/2019 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 625211547 CMS
E.R. Squibb & Sons, L.L.C. $15.8609/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651360467 CMS
Daiichi Sankyo Inc. $18.9109/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695339875 CMS
Merck Sharp & Dohme Corporation $16.6509/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695759161 CMS
Genentech USA, Inc. $99.0009/16/2019 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 857129889 CMS
Rigel Pharmaceuticals, Inc. $24.9909/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 698990977 CMS
Sun Pharmaceutical Industries Inc. $13.2809/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 704605461 CMS
Verastem, Inc. $20.3209/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699803953 CMS
Merck Sharp & Dohme Corporation $19.7909/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695739647 CMS
Amgen Inc. $22.6309/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662363071 CMS
Novartis Pharmaceuticals Corporation $16.2609/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660031491 CMS
Genentech USA, Inc. $14.8309/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681332807 CMS
PFIZER INC. $12.0009/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673127447 CMS
Genentech USA, Inc. $13.5909/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681389875 CMS
Bayer HealthCare Pharmaceuticals Inc. $14.8609/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 628489747 CMS
E.R. Squibb & Sons, L.L.C. $12.9709/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651360469 CMS
Amgen Inc. $29.9108/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662363069 CMS
Janssen Pharmaceuticals, Inc $2.1108/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659396105 CMS
AstraZeneca Pharmaceuticals LP $14.2908/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685851463 CMS
Bayer HealthCare Pharmaceuticals Inc. $15.3908/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 628473193 CMS
AbbVie, Inc. $24.6708/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 647895629 CMS
Celgene Corporation $24.2508/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673020453 CMS
Exelixis Inc. $21.2208/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 686554597 CMS
PFIZER INC. $23.5808/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673121397 CMS
Medtronic USA, Inc. $13.1708/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 667688157 CMS
Merck Sharp & Dohme Corporation $16.9508/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695724509 CMS
E.R. Squibb & Sons, L.L.C. $10.6408/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651360461 CMS
Astellas Pharma US Inc $17.6808/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655807049 CMS
Bayer HealthCare Pharmaceuticals Inc. $8.4208/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 628445621 CMS
Merck Sharp & Dohme Corporation $15.3908/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695692541 CMS
Dendreon Pharmaceuticals LLC $15.6108/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703772745 CMS
PFIZER INC. $7.3808/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673110215 CMS
AstraZeneca Pharmaceuticals LP $18.3007/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685933171 CMS
Pharmacyclics LLC, An AbbVie Company $17.9607/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665708475 CMS
Merck Sharp & Dohme Corporation $10.2107/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695688831 CMS
Genentech USA, Inc. $12.9007/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681381481 CMS
Stemline Therapeutics Inc. $22.5407/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703119899 CMS
E.R. Squibb & Sons, L.L.C. $12.8207/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651360453 CMS
Rigel Pharmaceuticals, Inc. $24.9907/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 698991599 CMS
Genentech USA, Inc. $12.9707/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681339363 CMS
Novartis Pharmaceuticals Corporation $23.7407/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660031489 CMS
Merck Sharp & Dohme Corporation $16.9407/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695681279 CMS
Janssen Biotech, Inc. $15.2207/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658803735 CMS
Novartis Pharmaceuticals Corporation $23.5206/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660031495 CMS
PFIZER INC. $17.2106/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673115915 CMS
Genentech USA, Inc. $17.2506/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681261753 CMS
PFIZER INC. $14.0706/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673115469 CMS
E.R. Squibb & Sons, L.L.C. $15.6906/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651360447 CMS
Daiichi Sankyo Inc. $18.7706/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695339227 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.