HUSSEIN MERZA
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology CORONA, CA NPI 1235409673
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology CA Celgene Corporation All categories
General Payments — all program years on this page
$9,721.11
- Category: General Payments
- Program years: PY2018–2024
- Record count: 468
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $762.87 across 33 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $746.34 | 32 |
| Education | $16.53 | 1 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Celgene Corporation | $126.16 | 5 |
| Alexion Pharmaceuticals, Inc. | $103.20 | 3 |
| BeiGene USA, Inc. | $95.22 | 4 |
| PFIZER INC. | $88.56 | 4 |
| ABBVIE INC. | $68.56 | 3 |
| Janssen Biotech, Inc. | $39.85 | 2 |
| SpringWorks Therapeutics, Inc. | $28.08 | 1 |
| GENZYME CORPORATION | $25.46 | 1 |
| Gilead Sciences, Inc. | $25.37 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $23.49 | 1 |
| E.R. Squibb & Sons, L.L.C. | $18.60 | 1 |
| Coherus Biosciences Inc. | $18.14 | 1 |
| Acerta Pharma LLC | $18.12 | 1 |
| SOBI, INC | $17.85 | 1 |
| ARRAY BIOPHARMA INC | $17.83 | 1 |
| Agios Pharmaceuticals, Inc. | $16.53 | 1 |
| GlaxoSmithKline, LLC. | $16.09 | 1 |
| Genentech USA, Inc. | $15.76 | 1 |
By program year
Records — PY2024 (33)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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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.