Payment overview · 2025
General Payments
56 reported records · 12 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · GILBERT, AZ · NPI 1124433198
Verified facts
CMS Open Payments records show Yazan Samhouri, MD received $39,230.73 in general payments during 2025 across 56 reported records.
ADC THERAPEUTICS AMERICA, INC. accounted for 73.2% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 10 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Calquence, Venclexta.
ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported VENCLEXTA as an associated drug or biological on 10417 records involving 4944 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Venclexta by this doctor in 2024.
AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CALQUENCE as an associated drug or biological on 8404 records involving 3935 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Calquence by this doctor in 2024.
Celgene Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 25 records involving 24 distinct recipient NPIs. Public Medicare Part D data also shows 48 claims for Eliquis by this doctor in 2024.
Genentech USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Venclexta as an associated drug or biological on 2896 records involving 2018 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Venclexta by this doctor in 2024.
Incyte Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JAKAFI as an associated drug or biological on 14854 records involving 6477 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Jakafi by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
56 reported records · 12 companies
Separate record types
Research Payments (direct recipient): not present in the loaded data
Associated Research Funding (for example, named PI): not present in the loaded data
Ownership / Investment: not present in the loaded data
These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.
Who paid this doctor?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| ADC THERAPEUTICS AMERICA, INC. | Unresolved — no canonical attribution shown | $28,726.30 | 73.2% | 28 | 2025 |
| Legend Biotech USA Inc. | Unresolved — no canonical attribution shown | $3,225.59 | 8.2% | 4 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $2,818.77 | 7.2% | 4 | 2025 |
| Incyte Corporation | Unresolved — no canonical attribution shown | $2,281.53 | 5.8% | 7 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $1,293.22 | 3.3% | 4 | 2025 |
| Iovance Biotherapeutics, Inc. | Unresolved — no canonical attribution shown | $233.88 | 0.6% | 2 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $175.49 | 0.5% | 1 | 2025 |
| Autolus Inc | Unresolved — no canonical attribution shown | $143.58 | 0.4% | 1 | 2025 |
| Celgene Corporation | Unresolved — no canonical attribution shown | $122.30 | 0.3% | 1 | 2025 |
| KYOWA KIRIN, INC. | Unresolved — no canonical attribution shown | $121.46 | 0.3% | 1 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $74.21 | 0.2% | 2 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $14.40 | 0.0% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Honoraria | $25,110.00 | 5 |
| Consulting Fee | $7,308.60 | 4 |
| Travel and Lodging | $3,514.07 | 13 |
| Food and Beverage | $3,023.06 | 33 |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $275.00 | 1 |
A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.
Analysis 1 · Payment-linked products
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| ZYNLONTA Normalized: zynlonta |
Drug | ADC THERAPEUTICS AMERICA, INC. | $28,290.40 | 24 | 2025 |
Source payment records
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| CARVYKTI Normalized: carvykti |
Biological, Drug | Janssen Biotech, Inc., Legend Biotech USA Inc. | $3,328.11 | 6 | 2025 |
Source payment records
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| MONJUVI Normalized: monjuvi |
Drug | Incyte Corporation | $461.53 | 4 | 2025 |
Source payment records
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| Amtagvi Normalized: amtagvi |
Drug | Iovance Biotherapeutics, Inc. | $233.88 | 2 | 2025 |
Source payment records
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| VENCLEXTA Normalized: venclexta |
Drug | ABBVIE INC. | $175.49 | 1 | 2025 |
Source payment records
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| REBLOZYL Normalized: reblozyl |
Biological | Celgene Corporation | $122.30 | 1 | 2025 |
Source payment records
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| POTELIGEO Normalized: poteligeo |
Drug | KYOWA KIRIN, INC. | $121.46 | 1 | 2025 |
Source payment records
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| SARCLISA Normalized: sarclisa |
Biological | GENZYME CORPORATION | $74.21 | 2 | 2025 |
Source payment records
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| ZYNYZ Normalized: zynyz |
Drug | Incyte Corporation | $25.57 | 1 | 2025 |
Source payment records
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| CALQUENCE Normalized: calquence |
Drug | AstraZeneca Pharmaceuticals LP | $14.40 | 1 | 2025 |
Source payment records
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* Product-associated amounts are non-additive because one payment record may name more than one product.
These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| CALQUENCE calquence |
2025 | Calquence | 2024 | 20 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| VENCLEXTA venclexta |
2025 | Venclexta | 2024 | 29 | exact normalized | Medicare Part D |
The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.
Analysis 2 · Same-company prescribing overlap
This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.
| Paying company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | VENCLEXTA open payments reported associated product |
CMS Open Payments — General Payments 10417 supporting records · 4944 recipient NPIs · example record 1201353144 |
Venclexta · 2024 Exact normalized brand match · 1 Part D row |
29 | 11 |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | CALQUENCE open payments reported associated product |
CMS Open Payments — General Payments 8404 supporting records · 3935 recipient NPIs · example record 1206131382 |
Calquence · 2024 Exact normalized brand match · 1 Part D row |
20 | suppressed by CMS |
| Celgene Corporation Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 25 supporting records · 24 recipient NPIs · example record 1184385048 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
48 | suppressed by CMS |
| Genentech USA, Inc. Exact reporting entity; no affiliate inference |
2025 | Venclexta open payments reported associated product |
CMS Open Payments — General Payments 2896 supporting records · 2018 recipient NPIs · example record 1211488584 |
Venclexta · 2024 Exact normalized brand match · 1 Part D row |
29 | 11 |
| Incyte Corporation Exact reporting entity; no affiliate inference |
2025 | JAKAFI open payments reported associated product |
CMS Open Payments — General Payments 14854 supporting records · 6477 recipient NPIs · example record 1225959940 |
Jakafi · 2024 Exact normalized brand match · 1 Part D row |
17 | suppressed by CMS |
These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.
Public Medicare Part D data
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Acyclovir | Acyclovir | 232 | 61 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 131 | 44 |
| Allopurinol | Allopurinol | 61 | 19 |
| Eliquis | Apixaban | 48 | suppressed |
| Prochlorperazine Maleate | Prochlorperazine Maleate | 41 | 27 |
| Pantoprazole Sodium | Pantoprazole Sodium | 38 | suppressed |
| Prednisone | Prednisone | 38 | 20 |
| Venclexta | Venetoclax | 29 | 11 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 23 | 15 |
| Brukinsa | Zanubrutinib | 22 | suppressed |
| Calquence | Acalabrutinib Maleate | 20 | suppressed |
| Fluconazole | Fluconazole | 19 | suppressed |
| Dexamethasone | Dexamethasone | 17 | suppressed |
| Jakafi | Ruxolitinib Phosphate | 17 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 16 | suppressed |
| Gabapentin | Gabapentin | 15 | suppressed |
| Potassium Chloride | Potassium Chloride | 14 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 13 | suppressed |
| Famotidine | Famotidine | 12 | suppressed |
| Furosemide | Furosemide | 12 | suppressed |
| Levetiracetam | Levetiracetam | 11 | suppressed |
| Lorazepam | Lorazepam | 11 | suppressed |
| Ondansetron Odt | Ondansetron | 11 | suppressed |
Timeline
Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $39,230.73 · 56 records | ADC THERAPEUTICS AMERICA, INC. | Amtagvi, CALQUENCE, CARVYKTI, MONJUVI, POTELIGEO, REBLOZYL, SARCLISA, VENCLEXTA, ZYNLONTA, ZYNYZ | 5 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| Dataset | Year | Publication | Source |
|---|---|---|---|
| CMS Open Payments — General Payments | 2025 | 2026-06-30 | Original source |
| Medicare Part D Prescribers by Provider and Drug | 2024 | 2026-05-06 | Original source |
| NPPES Data Dissemination V2 | current / reference data | 2026-08-10 | Original source |
Full methodology · Questions & answers · Report a possible error