Payment overview · 2025
General Payments
$3,083.96
86 reported records · 39 companies
Healthcare provider profile · identity verified
Sam Sun, M.D.
Allopathic & Osteopathic Physicians|Radiology|Radiation Oncology · GOODYEAR, AZ · NPI 1235584855
Verified facts
What the public records show
CMS Open Payments records show Sam Sun, M.D. received $3,083.96 in general payments during 2025 across 86 reported records.
Siemens Medical Solutions USA, Inc. accounted for 25.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 64 associated products.
PFIZER 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 ORGOVYX as an associated drug or biological on 16373 records involving 6981 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Orgovyx by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Separate record types
Research & Ownership
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?
Companies in 2025 General Payments
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Siemens Medical Solutions USA, Inc. | Unresolved — no canonical attribution shown | $770.00 | 25.0% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $254.70 | 8.3% | 6 | 2025 |
| Stemline Therapeutics Inc. | Unresolved — no canonical attribution shown | $194.36 | 6.3% | 3 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $162.98 | 5.3% | 8 | 2025 |
| Daiichi Sankyo Inc. | Unresolved — no canonical attribution shown | $156.81 | 5.1% | 6 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $148.07 | 4.8% | 7 | 2025 |
| Elekta, Inc. | Unresolved — no canonical attribution shown | $115.47 | 3.7% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $102.27 | 3.3% | 4 | 2025 |
| Incyte Corporation | Unresolved — no canonical attribution shown | $93.74 | 3.0% | 5 | 2025 |
| Carbofix Orthopedics Inc | Unresolved — no canonical attribution shown | $80.16 | 2.6% | 1 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $76.36 | 2.5% | 4 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $60.12 | 1.9% | 3 | 2025 |
| VisionRT, Inc. | Unresolved — no canonical attribution shown | $59.46 | 1.9% | 1 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $54.70 | 1.8% | 2 | 2025 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $53.75 | 1.7% | 2 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $51.31 | 1.7% | 2 | 2025 |
| ADC THERAPEUTICS AMERICA, INC. | Unresolved — no canonical attribution shown | $49.68 | 1.6% | 2 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $46.21 | 1.5% | 2 | 2025 |
| Blueprint Medicines Corporation | Unresolved — no canonical attribution shown | $46.20 | 1.5% | 2 | 2025 |
| Takeda Pharmaceuticals U.S.A., Inc. | Unresolved — no canonical attribution shown | $44.83 | 1.4% | 2 | 2025 |
| Genmab U.S., Inc. | Unresolved — no canonical attribution shown | $44.73 | 1.4% | 2 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $35.69 | 1.2% | 2 | 2025 |
| TerSera Therapeutics LLC | Unresolved — no canonical attribution shown | $35.49 | 1.1% | 1 | 2025 |
| SOBI, INC | Unresolved — no canonical attribution shown | $31.33 | 1.0% | 2 | 2025 |
| Regeneron Healthcare Solutions, Inc. | Unresolved — no canonical attribution shown | $28.88 | 0.9% | 1 | 2025 |
| Exelixis Inc. | Unresolved — no canonical attribution shown | $28.73 | 0.9% | 1 | 2025 |
| PUMA BIOTECHNOLOGY, INC. | Unresolved — no canonical attribution shown | $26.81 | 0.9% | 1 | 2025 |
| Geron Corporation | Unresolved — no canonical attribution shown | $25.94 | 0.8% | 1 | 2025 |
| Rigel Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $24.88 | 0.8% | 1 | 2025 |
| PharmaEssentia USA Corporation | Unresolved — no canonical attribution shown | $23.48 | 0.8% | 1 | 2025 |
| Eisai Inc. | Unresolved — no canonical attribution shown | $22.29 | 0.7% | 1 | 2025 |
| Ipsen Biopharmaceuticals, Inc | Unresolved — no canonical attribution shown | $22.11 | 0.7% | 1 | 2025 |
| Amneal Pharmaceuticals LLC | Unresolved — no canonical attribution shown | $19.64 | 0.6% | 1 | 2025 |
| Immunocore Limited | Unresolved — no canonical attribution shown | $18.25 | 0.6% | 1 | 2025 |
| Adaptive Biotechnologies Corporation | Unresolved — no canonical attribution shown | $17.44 | 0.6% | 1 | 2025 |
| Teleflex LLC | Unresolved — no canonical attribution shown | $17.02 | 0.6% | 1 | 2025 |
| Legend Biotech USA Inc. | Unresolved — no canonical attribution shown | $16.91 | 0.6% | 1 | 2025 |
| Aveo Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $16.23 | 0.5% | 1 | 2025 |
| Sirtex Medical Inc | Unresolved — no canonical attribution shown | $6.93 | 0.2% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $2,313.96 | 85 |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $770.00 | 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
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Orserdu Normalized: orserdu |
Drug | Stemline Therapeutics Inc. | $194.36 | 3 | 2025 |
Source payment records
|
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| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $148.07 | 7 | 2025 |
Source payment records
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| ELEKTA UNITY Normalized: elekta unity |
Device | Elekta, Inc. | $115.47 | 1 | 2025 |
Source payment records
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| Enhertu Normalized: enhertu |
Drug | Daiichi Sankyo Inc. | $106.25 | 4 | 2025 |
Source payment records
|
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| VERZENIO Normalized: verzenio |
Drug | Lilly USA, LLC | $102.27 | 4 | 2025 |
Source payment records
|
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| CARVYKTI Normalized: carvykti |
Biological, Drug | Janssen Biotech, Inc., Legend Biotech USA Inc. | $99.90 | 5 | 2025 |
Source payment records
|
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| JAKAFI Normalized: jakafi |
Drug | Incyte Corporation | $76.59 | 4 | 2025 |
Source payment records
|
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| JAYPIRCA Normalized: jaypirca |
Drug | Lilly USA, LLC | $75.43 | 3 | 2025 |
Source payment records
|
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| TALVEY Normalized: talvey |
Biological | Janssen Biotech, Inc. | $71.88 | 3 | 2025 |
Source payment records
|
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| Polivy Normalized: polivy |
Biological | Genentech USA, Inc. | $54.70 | 2 | 2025 |
Source payment records
|
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| DARZALEX Normalized: darzalex |
Biological | Janssen Biotech, Inc. | $51.27 | 2 | 2025 |
Source payment records
|
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| ZYNLONTA Normalized: zynlonta |
Drug | ADC THERAPEUTICS AMERICA, INC. | $49.68 | 2 | 2025 |
Source payment records
|
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| WELIREG Normalized: welireg |
Drug | Merck Sharp & Dohme LLC | $49.16 | 2 | 2025 |
Source payment records
|
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| TECVAYLI Normalized: tecvayli |
Biological | Janssen Biotech, Inc. | $47.41 | 2 | 2025 |
Source payment records
|
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| OPDIVO Normalized: opdivo |
Biological | E.R. Squibb & Sons, L.L.C. | $46.21 | 2 | 2025 |
Source payment records
|
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| AYVAKIT Normalized: ayvakit |
Drug | Blueprint Medicines Corporation | $46.20 | 2 | 2025 |
Source payment records
|
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| FRUZAQLA Normalized: fruzaqla |
Drug | Takeda Pharmaceuticals U.S.A., Inc. | $44.83 | 2 | 2025 |
Source payment records
|
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| Tivdak Normalized: tivdak |
Drug | Genmab U.S., Inc. | $44.73 | 2 | 2025 |
Source payment records
|
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| Nubeqa Normalized: nubeqa |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $35.69 | 2 | 2025 |
Source payment records
|
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| Zoladex Normalized: zoladex |
Drug | TerSera Therapeutics LLC | $35.49 | 1 | 2025 |
Source payment records
|
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| LIBTAYO Normalized: libtayo |
Biological | Regeneron Healthcare Solutions, Inc. | $28.88 | 1 | 2025 |
Source payment records
|
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| CABOMETYX Normalized: cabometyx |
Drug | Exelixis Inc. | $28.73 | 1 | 2025 |
Source payment records
|
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| NERLYNX Normalized: nerlynx |
Drug | PUMA BIOTECHNOLOGY, INC. | $26.81 | 1 | 2025 |
Source payment records
|
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| RYBREVANT Normalized: rybrevant |
Drug | Janssen Biotech, Inc. | $26.29 | 1 | 2025 |
Source payment records
|
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| WAYRILZ Normalized: wayrilz |
Drug | GENZYME CORPORATION | $26.23 | 1 | 2025 |
Source payment records
|
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| RYTELO Normalized: rytelo |
Drug | Geron Corporation | $25.94 | 1 | 2025 |
Source payment records
|
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| INJECTAFER Normalized: injectafer |
Drug | Daiichi Sankyo Inc. | $25.33 | 1 | 2025 |
Source payment records
|
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| DATROWAY Normalized: datroway |
Drug | Daiichi Sankyo Inc. | $25.23 | 1 | 2025 |
Source payment records
|
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| SARCLISA Normalized: sarclisa |
Biological | GENZYME CORPORATION | $25.08 | 1 | 2025 |
Source payment records
|
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| Gavreto Normalized: gavreto |
Drug | Rigel Pharmaceuticals, Inc. | $24.88 | 1 | 2025 |
Source payment records
|
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| Rezlidhia Normalized: rezlidhia |
Drug | Rigel Pharmaceuticals, Inc. | $24.88 | 1 | 2025 |
Source payment records
|
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| TAVALISSE Normalized: tavalisse |
Drug | Rigel Pharmaceuticals, Inc. | $24.88 | 1 | 2025 |
Source payment records
|
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| BESREMI Normalized: besremi |
Drug | PharmaEssentia USA Corporation | $23.48 | 1 | 2025 |
Source payment records
|
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| KEYTRUDA QLEX Normalized: keytruda qlex |
Biological | Merck Sharp & Dohme LLC | $23.41 | 1 | 2025 |
Source payment records
|
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| ADCETRIS Normalized: adcetris |
Biological | PFIZER INC. | $23.04 | 1 | 2025 |
Source payment records
|
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| ELREXFIO Normalized: elrexfio |
Drug | PFIZER INC. | $23.04 | 1 | 2025 |
Source payment records
|
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| LUTATHERA Normalized: lutathera |
Drug | Novartis Pharmaceuticals Corporation | $22.64 | 1 | 2025 |
Source payment records
|
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| Lenvima Normalized: lenvima |
Drug | Eisai Inc. | $22.29 | 1 | 2025 |
Source payment records
|
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| Onivyde Normalized: onivyde |
Drug | Ipsen Biopharmaceuticals, Inc | $22.11 | 1 | 2025 |
Source payment records
|
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| KISQALI Normalized: kisqali |
Drug | Novartis Pharmaceuticals Corporation | $21.82 | 1 | 2025 |
Source payment records
|
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| NIKTIMVO Normalized: niktimvo |
Drug | Incyte Corporation | $21.66 | 1 | 2025 |
Source payment records
|
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| Stivarga Normalized: stivarga |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $21.46 | 1 | 2025 |
Source payment records
|
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| Vitrakvi Normalized: vitrakvi |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $21.46 | 1 | 2025 |
Source payment records
|
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| IMFINZI Normalized: imfinzi |
Biological | AstraZeneca Pharmaceuticals LP | $21.23 | 1 | 2025 |
Source payment records
|
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| IBRANCE Normalized: ibrance |
Drug | PFIZER INC. | $20.05 | 1 | 2025 |
Source payment records
|
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| TUKYSA Normalized: tukysa |
Drug | PFIZER INC. | $20.05 | 1 | 2025 |
Source payment records
|
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| ALYMSYS Normalized: alymsys |
Drug | Amneal Pharmaceuticals LLC | $19.64 | 1 | 2025 |
Source payment records
|
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| KIMMTRAK Normalized: kimmtrak |
Drug | Immunocore Limited | $18.25 | 1 | 2025 |
Source payment records
|
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| Doptelet Normalized: doptelet |
Drug | SOBI, INC | $17.76 | 1 | 2025 |
Source payment records
|
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| LYNPARZA Normalized: lynparza |
Biological | Merck Sharp & Dohme LLC | $17.57 | 1 | 2025 |
Source payment records
|
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| clonoSEQ Normalized: clonoseq |
Device | Adaptive Biotechnologies Corporation | $17.44 | 1 | 2025 |
Source payment records
|
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| SCEMBLIX Normalized: scemblix |
Drug | Novartis Pharmaceuticals Corporation | $17.43 | 1 | 2025 |
Source payment records
|
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| MONJUVI Normalized: monjuvi |
Drug | Incyte Corporation | $17.15 | 1 | 2025 |
Source payment records
|
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| PEMAZYRE Normalized: pemazyre |
Drug | Incyte Corporation | $17.15 | 1 | 2025 |
Source payment records
|
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| PADCEV Normalized: padcev |
Biological | PFIZER INC. | $17.03 | 1 | 2025 |
Source payment records
|
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| BARRIGEL Normalized: barrigel |
Device | Teleflex LLC | $17.02 | 1 | 2025 |
Source payment records
|
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| FOTIVDA Normalized: fotivda |
Drug | Aveo Pharmaceuticals, Inc. | $16.23 | 1 | 2025 |
Source payment records
|
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| PLUVICTO Normalized: pluvicto |
Drug | Novartis Pharmaceuticals Corporation | $14.47 | 1 | 2025 |
Source payment records
|
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| Xofigo Normalized: xofigo |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $14.23 | 1 | 2025 |
Source payment records
|
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| Vonjo Normalized: vonjo |
Drug | SOBI, INC | $13.57 | 1 | 2025 |
Source payment records
|
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| AKEEGA Normalized: akeega |
Drug | Janssen Biotech, Inc. | $8.62 | 1 | 2025 |
Source payment records
|
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| BALVERSA Normalized: balversa |
Drug | Janssen Biotech, Inc. | $8.62 | 1 | 2025 |
Source payment records
|
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| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc. | $8.62 | 1 | 2025 |
Source payment records
|
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| SIR-Spheres Microspheres Normalized: sir spheres microspheres |
Device | Sirtex Medical Inc | $6.93 | 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.
Public prescribing for products named in payments
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
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
Drugs reported in other payments from the same company that also appear in Medicare Part D
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 |
|---|---|---|---|---|---|---|
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | ORGOVYX open payments reported associated product |
CMS Open Payments — General Payments 16373 supporting records · 6981 recipient NPIs · example record 1228794230 |
Orgovyx · 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
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Gabapentin | Gabapentin | 22 | suppressed |
| Mometasone Furoate | Mometasone Furoate | 22 | 18 |
| Orgovyx | Relugolix | 17 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 16 | suppressed |
| Tamsulosin Hcl | Tamsulosin Hcl | 12 | suppressed |
| Pentoxifylline | Pentoxifylline | 11 | suppressed |
Timeline
Payment and prescribing data by year
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 | $3,083.96 · 86 records | Siemens Medical Solutions USA, Inc. | ADCETRIS, AKEEGA, ALYMSYS, AYVAKIT, BALVERSA, BARRIGEL, BESREMI, CABOMETYX, CARVYKTI, DARZALEX, DATROWAY, Doptelet, ELEKTA UNITY, ELREXFIO, ERLEADA, Enhertu, FOTIVDA, FRUZAQLA, Gavreto, IBRANCE, IMFINZI, INJECTAFER, JAKAFI, JAYPIRCA, KEYTRUDA, KEYTRUDA QLEX, KIMMTRAK, KISQALI, LIBTAYO, LUTATHERA, LYNPARZA, Lenvima, MONJUVI, NERLYNX, NIKTIMVO, Nubeqa, OPDIVO, Onivyde, Orserdu, PADCEV, PEMAZYRE, PLUVICTO, Polivy, RYBREVANT, RYTELO, Rezlidhia, SARCLISA, SCEMBLIX, SIR-Spheres Microspheres, Stivarga, TALVEY, TAVALISSE, TECVAYLI, TUKYSA, Tivdak, VERZENIO, Vitrakvi, Vonjo, WAYRILZ, WELIREG, Xofigo, ZYNLONTA, Zoladex, clonoSEQ | 1 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- How do you evaluate evidence when you have a financial relationship with PFIZER INC.?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| 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