Payment overview · 2025
General Payments
$55,884.31
180 reported records · 34 companies
Healthcare provider profile · identity verified
Gregory Mcmahon, D.O.
Allopathic & Osteopathic Physicians|Urology · WYNNEWOOD, PA · NPI 1295116218
Verified facts
What the public records show
CMS Open Payments records show Gregory Mcmahon, D.O. received $55,884.31 in general payments during 2025 across 180 reported records.
Janssen Biotech, Inc. accounted for 65.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 38 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Erleada, Gemtesa, Nubeqa, Orgovyx, Xtandi.
Astellas Pharma US 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 Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Myrbetriq by this doctor in 2024.
Astellas Pharma US 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 Xtandi as an associated drug or biological on 11345 records involving 5418 distinct recipient NPIs. Public Medicare Part D data also shows 80 claims for Xtandi by this doctor in 2024.
Bayer Healthcare Pharmaceuticals 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 Nubeqa as an associated drug or biological on 24369 records involving 9557 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Nubeqa by this doctor in 2024.
Janssen Biotech, 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 ERLEADA as an associated drug or biological on 32382 records involving 10919 distinct recipient NPIs. Public Medicare Part D data also shows 155 claims for Erleada by this doctor in 2024.
Janssen Global Services, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ERLEADA as an associated drug or biological on 12 records involving 9 distinct recipient NPIs. Public Medicare Part D data also shows 155 claims for Erleada by this doctor in 2024.
Janssen Scientific Affairs, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ERLEADA as an associated drug or biological on 1106 records involving 808 distinct recipient NPIs. Public Medicare Part D data also shows 155 claims for Erleada by this doctor in 2024.
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 276 claims for Orgovyx by this doctor in 2024.
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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 80 claims for Xtandi by this doctor in 2024.
Sumitomo Pharma America, 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 GEMTESA as an associated drug or biological on 61692 records involving 22152 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Gemtesa by this doctor in 2024.
Sumitomo Pharma America, 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 17129 records involving 6223 distinct recipient NPIs. Public Medicare Part D data also shows 276 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 |
|---|---|---|---|---|---|
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $36,354.01 | 65.0% | 74 | 2025 |
| Janssen Scientific Affairs, LLC | Unresolved — no canonical attribution shown | $8,161.77 | 14.6% | 5 | 2025 |
| Ferring Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $4,767.70 | 8.5% | 9 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $1,561.25 | 2.8% | 9 | 2025 |
| Bayer Healthcare Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $1,352.24 | 2.4% | 16 | 2025 |
| Janssen Global Services, LLC | Unresolved — no canonical attribution shown | $1,266.60 | 2.3% | 2 | 2025 |
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $454.82 | 0.8% | 2 | 2025 |
| IMMUNITYBIO, INC. | Unresolved — no canonical attribution shown | $378.35 | 0.7% | 9 | 2025 |
| AngioDynamics, Inc. | Unresolved — no canonical attribution shown | $221.47 | 0.4% | 1 | 2025 |
| Dendreon Pharmaceuticals LLC | Unresolved — no canonical attribution shown | $205.98 | 0.4% | 4 | 2025 |
| TOLMAR, INC. | Unresolved — no canonical attribution shown | $141.97 | 0.2% | 5 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $127.08 | 0.2% | 5 | 2025 |
| Astellas Pharma US Inc | Unresolved — no canonical attribution shown | $108.35 | 0.2% | 5 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $87.65 | 0.2% | 4 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $86.64 | 0.2% | 4 | 2025 |
| Sumitomo Pharma America, Inc. | Unresolved — no canonical attribution shown | $58.35 | 0.1% | 3 | 2025 |
| BIOPROTECT MEDICAL, INC. | Unresolved — no canonical attribution shown | $52.44 | 0.1% | 3 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $50.79 | 0.1% | 2 | 2025 |
| Verity Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $49.55 | 0.1% | 2 | 2025 |
| DENTSPLY IH AB | Unresolved — no canonical attribution shown | $47.33 | 0.1% | 1 | 2025 |
| Telix Pharmaceuticals | Unresolved — no canonical attribution shown | $44.47 | 0.1% | 2 | 2025 |
| CIVCO Medical Instruments | Unresolved — no canonical attribution shown | $38.09 | 0.1% | 1 | 2025 |
| PROGENICS PHARMACEUTICALS, INC. | Unresolved — no canonical attribution shown | $29.80 | 0.1% | 1 | 2025 |
| Calyxo, Inc. | Unresolved — no canonical attribution shown | $28.80 | 0.1% | 1 | 2025 |
| Profound Medical Corp. | Unresolved — no canonical attribution shown | $28.01 | 0.1% | 1 | 2025 |
| UROGEN PHARMA, INC. | Unresolved — no canonical attribution shown | $26.91 | 0.1% | 1 | 2025 |
| MILLICENT US INC | Unresolved — no canonical attribution shown | $23.41 | 0.0% | 1 | 2025 |
| Olympus America Inc. | Unresolved — no canonical attribution shown | $21.54 | 0.0% | 1 | 2025 |
| MIMEDX Group, Inc. | Unresolved — no canonical attribution shown | $21.31 | 0.0% | 1 | 2025 |
| VERTEX PHARMACEUTICALS INCORPORATED | Unresolved — no canonical attribution shown | $20.39 | 0.0% | 1 | 2025 |
| Sandoz Inc. | Unresolved — no canonical attribution shown | $19.29 | 0.0% | 1 | 2025 |
| Avation Medical, Inc. | Unresolved — no canonical attribution shown | $17.01 | 0.0% | 1 | 2025 |
| Antares Pharma, Inc. | Unresolved — no canonical attribution shown | $16.34 | 0.0% | 1 | 2025 |
| Endo USA, Inc. | Unresolved — no canonical attribution shown | $14.60 | 0.0% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Consulting Fee | $26,482.01 | 10 |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $20,828.00 | 13 |
| Food and Beverage | $4,898.06 | 142 |
| Travel and Lodging | $3,641.18 | 14 |
| Education | $35.06 | 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 |
|---|---|---|---|---|---|
| CARVYKTI Normalized: carvykti |
Drug | Janssen Biotech, Inc. | $24,051.31 | 30 | 2025 |
Source payment records
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| RYBREVANT Normalized: rybrevant |
Drug | Janssen Biotech, Inc. | $24,051.31 | 30 | 2025 |
Source payment records
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| ADSTILADRIN Normalized: adstiladrin |
Biological | Ferring Pharmaceuticals Inc. | $4,767.70 | 9 | 2025 |
Source payment records
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| IMFINZI Normalized: imfinzi |
Biological | AstraZeneca Pharmaceuticals LP | $1,430.06 | 2 | 2025 |
Source payment records
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| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc., Janssen Scientific Affairs, LLC | $1,404.96 | 43 | 2025 |
Source payment records
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| Nubeqa Normalized: nubeqa |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $1,321.52 | 14 | 2025 |
Source payment records
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| SpaceOAR System Normalized: spaceoar system |
Device | Boston Scientific Corporation | $454.82 | 2 | 2025 |
Source payment records
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| Xofigo Normalized: xofigo |
Drug | Bayer Healthcare Pharmaceuticals Inc. | $404.90 | 13 | 2025 |
Source payment records
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| ANKTIVA Normalized: anktiva |
Drug | IMMUNITYBIO, INC. | $378.35 | 9 | 2025 |
Source payment records
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| NANOKNIFE Normalized: nanoknife |
Device | AngioDynamics, Inc. | $221.47 | 1 | 2025 |
Source payment records
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| PROVENGE Normalized: provenge |
Drug | Dendreon Pharmaceuticals LLC | $205.98 | 4 | 2025 |
Source payment records
|
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| XTANDI Normalized: xtandi |
Drug | Astellas Pharma US Inc, PFIZER INC. | $196.00 | 9 | 2025 |
Source payment records
|
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| LYNPARZA Normalized: lynparza |
Biological, Drug | AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC | $152.94 | 8 | 2025 |
Source payment records
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| ELIGARD Normalized: eligard |
Drug | TOLMAR, INC. | $141.97 | 5 | 2025 |
Source payment records
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| JATENZO Normalized: jatenzo |
Drug | TOLMAR, INC. | $141.97 | 5 | 2025 |
Source payment records
|
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| PLUVICTO Normalized: pluvicto |
Drug | Novartis Pharmaceuticals Corporation | $127.08 | 5 | 2025 |
Source payment records
|
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| ORGOVYX Normalized: orgovyx |
Drug | PFIZER INC., Sumitomo Pharma America, Inc. | $104.05 | 5 | 2025 |
Source payment records
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| TALZENNA Normalized: talzenna |
Drug | PFIZER INC. | $87.65 | 4 | 2025 |
Source payment records
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| BOTOX Normalized: botox |
Biological | ABBVIE INC. | $67.90 | 3 | 2025 |
Source payment records
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| BIOPROTECT BALLOON IMPLANT SYSTEM Normalized: bioprotect balloon implant system |
Device | BIOPROTECT MEDICAL, INC. | $52.44 | 3 | 2025 |
Source payment records
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| Trelstar Normalized: trelstar |
Drug | Verity Pharmaceuticals Inc. | $49.55 | 2 | 2025 |
Source payment records
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| LOFRIC Normalized: lofric |
Device | DENTSPLY IH AB | $47.33 | 1 | 2025 |
Source payment records
|
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| ILLUCCIX Normalized: illuccix |
Drug | Telix Pharmaceuticals | $44.47 | 2 | 2025 |
Source payment records
|
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| GEMTESA Normalized: gemtesa |
Drug | Sumitomo Pharma America, Inc. | $41.95 | 2 | 2025 |
Source payment records
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| PYLARIFY Normalized: pylarify |
Drug | PROGENICS PHARMACEUTICALS, INC. | $29.80 | 1 | 2025 |
Source payment records
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| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $29.04 | 1 | 2025 |
Source payment records
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| CVAC ASPIRATION SYSTEM Normalized: cvac aspiration system |
Device | Calyxo, Inc. | $28.80 | 1 | 2025 |
Source payment records
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| Tulsa-Pro Normalized: tulsa pro |
Device | Profound Medical Corp. | $28.01 | 1 | 2025 |
Source payment records
|
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| ZUSDURI Normalized: zusduri |
Drug | UROGEN PHARMA, INC. | $26.91 | 1 | 2025 |
Source payment records
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| INTRAROSA Normalized: intrarosa |
Drug | MILLICENT US INC | $23.41 | 1 | 2025 |
Source payment records
|
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| iTIND System Normalized: itind system |
Device | Olympus America Inc. | $21.54 | 1 | 2025 |
Source payment records
|
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| JOURNAVX Normalized: journavx |
Drug | VERTEX PHARMACEUTICALS INCORPORATED | $20.39 | 1 | 2025 |
Source payment records
|
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| JUBBONTI Normalized: jubbonti |
Biological | Sandoz Inc. | $19.29 | 1 | 2025 |
Source payment records
|
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| LUPRON DEPOT Normalized: lupron depot |
Drug | ABBVIE INC. | $18.74 | 1 | 2025 |
Source payment records
|
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| Vivally System Normalized: vivally system |
Device | Avation Medical, Inc. | $17.01 | 1 | 2025 |
Source payment records
|
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| XYOSTED Normalized: xyosted |
Drug | Antares Pharma, Inc. | $16.34 | 1 | 2025 |
Source payment records
|
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| XIAFLEX Normalized: xiaflex |
Biological | Endo USA, Inc. | $14.60 | 1 | 2025 |
Source payment records
|
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| AKEEGA Normalized: akeega |
Drug | Janssen Scientific Affairs, LLC | $9.06 | 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
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| ERLEADA erleada |
2025 | Erleada | 2024 | 155 | exact normalized | Medicare Part D |
| GEMTESA gemtesa |
2025 | Gemtesa | 2024 | 14 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Nubeqa nubeqa |
2025 | Nubeqa | 2024 | 31 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| ORGOVYX orgovyx |
2025 | Orgovyx | 2024 | 276 | exact normalized | Medicare Part D |
| XTANDI xtandi |
2025 | Xtandi | 2024 | 80 | 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
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 |
|---|---|---|---|---|---|---|
| Astellas Pharma US Inc Exact reporting entity; no affiliate inference |
2025 | Myrbetriq open payments reported associated product |
CMS Open Payments — General Payments 16 supporting records · 16 recipient NPIs · example record 1238599014 |
Myrbetriq · 2024 Exact normalized brand match · 1 Part D row |
33 | 11 |
| Astellas Pharma US Inc Exact reporting entity; no affiliate inference |
2025 | Xtandi open payments reported associated product |
CMS Open Payments — General Payments 11345 supporting records · 5418 recipient NPIs · example record 1238560686 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
80 | 12 |
| Bayer Healthcare Pharmaceuticals Inc. Exact reporting entity; no affiliate inference |
2025 | Nubeqa open payments reported associated product |
CMS Open Payments — General Payments 24369 supporting records · 9557 recipient NPIs · example record 1225434669 |
Nubeqa · 2024 Exact normalized brand match · 1 Part D row |
31 | suppressed by CMS |
| Janssen Biotech, Inc. Exact reporting entity; no affiliate inference |
2025 | ERLEADA open payments reported associated product |
CMS Open Payments — General Payments 32382 supporting records · 10919 recipient NPIs · example record 1174257499 |
Erleada · 2024 Exact normalized brand match · 1 Part D row |
155 | 19 |
| Janssen Global Services, LLC Exact reporting entity; no affiliate inference |
2025 | ERLEADA open payments reported associated product |
CMS Open Payments — General Payments 12 supporting records · 9 recipient NPIs · example record 1173804639 |
Erleada · 2024 Exact normalized brand match · 1 Part D row |
155 | 19 |
| Janssen Scientific Affairs, LLC Exact reporting entity; no affiliate inference |
2025 | ERLEADA open payments reported associated product |
CMS Open Payments — General Payments 1106 supporting records · 808 recipient NPIs · example record 1174147601 |
Erleada · 2024 Exact normalized brand match · 1 Part D row |
155 | 19 |
| 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 |
276 | 37 |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 19368 supporting records · 7657 recipient NPIs · example record 1228794230 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
80 | 12 |
| Sumitomo Pharma America, Inc. Exact reporting entity; no affiliate inference |
2025 | GEMTESA open payments reported associated product |
CMS Open Payments — General Payments 61692 supporting records · 22152 recipient NPIs · example record 1176593503 |
Gemtesa · 2024 Exact normalized brand match · 1 Part D row |
14 | suppressed by CMS |
| Sumitomo Pharma America, Inc. Exact reporting entity; no affiliate inference |
2025 | ORGOVYX open payments reported associated product |
CMS Open Payments — General Payments 17129 supporting records · 6223 recipient NPIs · example record 1176593507 |
Orgovyx · 2024 Exact normalized brand match · 1 Part D row |
276 | 37 |
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 |
|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 653 | 222 |
| Orgovyx | Relugolix | 276 | 37 |
| Finasteride | Finasteride | 176 | 58 |
| Erleada | Apalutamide | 155 | 19 |
| Abiraterone Acetate | Abiraterone Acetate | 94 | 16 |
| Xtandi | Enzalutamide | 80 | 12 |
| Prednisone | Prednisone | 75 | 18 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 73 | 54 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 63 | 22 |
| Nitrofurantoin | Nitrofurantoin Macrocrystal | 54 | 45 |
| Doxazosin Mesylate | Doxazosin Mesylate | 51 | 17 |
| Myrbetriq | Mirabegron | 33 | 11 |
| Sildenafil Citrate | Sildenafil Citrate | 32 | suppressed |
| Nubeqa | Darolutamide | 31 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 30 | 24 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 27 | 22 |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 21 | suppressed |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 17 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 16 | suppressed |
| Silodosin | Silodosin | 15 | suppressed |
| Gemtesa | Vibegron | 14 | suppressed |
| Potassium Citrate Er | Potassium Citrate | 11 | suppressed |
| Tadalafil | Tadalafil | 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 | $55,884.31 · 180 records | Janssen Biotech, Inc. | ADSTILADRIN, AKEEGA, ANKTIVA, BIOPROTECT BALLOON IMPLANT SYSTEM, BOTOX, CARVYKTI, CVAC ASPIRATION SYSTEM, ELIGARD, ERLEADA, GEMTESA, ILLUCCIX, IMFINZI, INTRAROSA, JATENZO, JOURNAVX, JUBBONTI, KEYTRUDA, LOFRIC, LUPRON DEPOT, LYNPARZA, NANOKNIFE, Nubeqa, ORGOVYX, PLUVICTO, PROVENGE, PYLARIFY, RYBREVANT, SpaceOAR System, TALZENNA, Trelstar, Tulsa-Pro, Vivally System, XIAFLEX, XTANDI, XYOSTED, Xofigo, ZUSDURI, iTIND System | 10 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Erleada play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Astellas Pharma US 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