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

HUSSEIN MERZA

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1235409673
CMS profile
283190
Location
CORONA, CA

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 · PY2021 · Entire year

$3,058.05

148 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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,799.16 145
Education $258.89 3

By paying entity

PY2021 · entire year · sorted by reported total

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

148 matching records · $3,058.05 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 148 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 148.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Boehringer Ingelheim Pharmaceuticals, Inc. $22.2812/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763601600 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $17.8012/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851885653 CMS
AstraZeneca Pharmaceuticals LP $16.6512/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829873343 CMS
PUMA BIOTECHNOLOGY, INC. $23.6712/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026834089441 CMS
EMD Serono, Inc. $16.8512/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026940485869 CMS
GE HEALTHCARE $8.1812/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026837884765 CMS
Seagen Inc. $14.8512/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832138221 CMS
Regeneron Healthcare Solutions, Inc. $28.2912/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026809604963 CMS
Celgene Corporation $21.9311/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783678473 CMS
PUMA BIOTECHNOLOGY, INC. $20.2211/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026834092311 CMS
Alexion Pharmaceuticals, Inc. $23.6811/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783128369 CMS
Novartis Pharmaceuticals Corporation $20.1011/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813078597 CMS
AbbVie Inc. $12.3211/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026795661419 CMS
Eisai Inc. $22.6711/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818034527 CMS
Janssen Biotech, Inc. $32.6211/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788021027 CMS
Janssen Biotech, Inc. $22.2810/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788021037 CMS
Genentech USA, Inc. $12.4610/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835918995 CMS
E.R. Squibb & Sons, L.L.C. $17.5310/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783438419 CMS
Pharmacyclics LLC, An AbbVie Company $27.9010/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012949 CMS
Celgene Corporation $23.6010/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783678471 CMS
PFIZER INC. $27.2710/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833229281 CMS
Pharmacyclics LLC, An AbbVie Company $26.0910/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012947 CMS
GE HEALTHCARE $11.3710/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026837884727 CMS
GENZYME CORPORATION $19.0010/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843504179 CMS
E.R. Squibb & Sons, L.L.C. $19.2110/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783438417 CMS
Novartis Pharmaceuticals Corporation $11.4210/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813078589 CMS
Novartis Pharmaceuticals Corporation $19.0010/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813078593 CMS
BeiGene USA, Inc. $24.5209/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026846699363 CMS
Regeneron Healthcare Solutions, Inc. $24.4109/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026809604961 CMS
GENZYME CORPORATION $21.2709/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843504157 CMS
Amgen Inc. $11.9709/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825360965 CMS
Astellas Pharma US Inc $11.8209/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026821449211 CMS
Coherus Biosciences Inc. $18.9809/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026855105933 CMS
Secura Bio, Inc. $24.1909/02/2021 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026851660227 CMS
TerSera Therapeutics LLC $19.0308/31/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851044623 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $12.1408/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763601602 CMS
TerSera Therapeutics LLC $23.0908/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851044625 CMS
AbbVie Inc. $17.5108/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026795661413 CMS
Lilly USA, LLC $15.9908/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026819128035 CMS
Pharmacyclics LLC, An AbbVie Company $9.3908/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012943 CMS
Pharmacyclics LLC, An AbbVie Company $13.9208/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012945 CMS
Myovant Sciences Inc. $14.7608/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026834971319 CMS
GENZYME CORPORATION $21.6108/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843503993 CMS
Celgene Corporation $20.9308/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783678469 CMS
E.R. Squibb & Sons, L.L.C. $17.4108/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783438411 CMS
Pharmacyclics LLC, An AbbVie Company $21.5008/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012941 CMS
Lilly USA, LLC $6.1908/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026819128043 CMS
Lilly USA, LLC $0.6708/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026819191883 CMS
Lilly USA, LLC $2.5308/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026819088035 CMS
Pharmacyclics LLC, An AbbVie Company $27.4007/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012939 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $245.08 4
PY2020 $804.12 40
PY2021 $3,058.05 148
PY2022 $2,568.01 132
PY2023 $2,183.98 110
PY2024 $762.87 33
PY2025 $102.60 4

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
HUSSEIN MERZA, NPI 1235409673. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1235409673.
APA 7
IndustryPayments. (2026). HUSSEIN MERZA, NPI 1235409673 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1235409673
Bluebook
HUSSEIN MERZA, NPI 1235409673, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1235409673.

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