Payment overview · 2025
General Payments
$36.90
2 reported records · 2 companies
Healthcare provider profile · identity verified
Avi Samson Retter, MD
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · BRONX, NY · NPI 1205894268
Verified facts
What the public records show
CMS Open Payments records show Avi Samson Retter, MD received $36.90 in general payments during 2025 across 2 reported records.
PFIZER INC. accounted for 55.1% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 3 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Keytruda.
Merck Sharp & Dohme 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 KEYTRUDA as an associated drug or biological on 46588 records involving 15767 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Keytruda 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 59 claims for Eliquis 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 IBRANCE as an associated drug or biological on 11505 records involving 4934 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Ibrance 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 96 claims for Xtandi 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 |
|---|---|---|---|---|---|
| PFIZER INC. | Unresolved — no canonical attribution shown | $20.33 | 55.1% | 1 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $16.57 | 44.9% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $36.90 | 2 |
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 |
|---|---|---|---|---|---|
| VYNDAQEL Normalized: vyndaqel |
Drug | PFIZER INC. | $20.33 | 1 | 2025 |
Source payment records
|
|||||
| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $16.57 | 1 | 2025 |
Source payment records
|
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| WELIREG Normalized: welireg |
Drug | Merck Sharp & Dohme LLC | $16.57 | 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 |
|---|---|---|---|---|---|---|
| KEYTRUDA keytruda |
2025 | Keytruda | 2024 | 11 Beneficiary count suppressed |
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 |
|---|---|---|---|---|---|---|
| Merck Sharp & Dohme LLC Exact reporting entity; no affiliate inference |
2025 | KEYTRUDA open payments reported associated product |
CMS Open Payments — General Payments 46588 supporting records · 15767 recipient NPIs · example record 1237992210 |
Keytruda · 2024 Exact normalized brand match · 1 Part D row |
11 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 87112 supporting records · 36032 recipient NPIs · example record 1228794063 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
59 | 12 |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | IBRANCE open payments reported associated product |
CMS Open Payments — General Payments 11505 supporting records · 4934 recipient NPIs · example record 1228794164 |
Ibrance · 2024 Exact normalized brand match · 1 Part D row |
22 | suppressed by CMS |
| 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 |
96 | 16 |
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 |
|---|---|---|---|
| Aranesp | Darbepoetin Alfa In Polysorbat | 246 | 46 |
| Letrozole | Letrozole | 146 | 32 |
| Lupron Depot | Leuprolide Acetate | 142 | 48 |
| Procrit | Epoetin Alfa | 101 | 15 |
| Xtandi | Enzalutamide | 96 | 16 |
| Octagam | Immun Globg(Igg)/Malt/Iga Ov50 | 69 | suppressed |
| Xgeva | Denosumab | 63 | suppressed |
| Eliquis | Apixaban | 59 | 12 |
| Bortezomib | Bortezomib | 53 | suppressed |
| Imfinzi | Durvalumab | 52 | suppressed |
| Akynzeo | Fosnetupitant/Palonosetron | 48 | suppressed |
| Prednisone | Prednisone | 42 | 11 |
| Revlimid | Lenalidomide | 41 | suppressed |
| Tamsulosin Hcl | Tamsulosin Hcl | 40 | suppressed |
| Fulvestrant | Fulvestrant | 38 | suppressed |
| Kyprolis | Carfilzomib | 38 | suppressed |
| Abiraterone Acetate | Abiraterone Acetate | 37 | suppressed |
| Exemestane | Exemestane | 35 | suppressed |
| Neulasta Onpro | Pegfilgrastim | 34 | suppressed |
| Dexamethasone | Dexamethasone | 25 | 11 |
| Pomalyst | Pomalidomide | 24 | suppressed |
| Darzalex Faspro | Daratumumab-Hyaluronidase-Fihj | 23 | suppressed |
| Gammagard Liquid | Immun Glob G(Igg)/Gly/Iga Ov50 | 22 | suppressed |
| Ibrance | Palbociclib | 22 | suppressed |
| Xarelto | Rivaroxaban | 22 | suppressed |
| Acyclovir | Acyclovir | 21 | suppressed |
| Calquence | Acalabrutinib Maleate | 19 | suppressed |
| Hydroxyurea | Hydroxyurea | 19 | suppressed |
| Omeprazole | Omeprazole | 19 | suppressed |
| Ondansetron Odt | Ondansetron | 19 | suppressed |
| Erleada | Apalutamide | 17 | suppressed |
| Riabni | Rituximab-Arrx | 17 | suppressed |
| Vitamin D2 | Ergocalciferol (Vitamin D2) | 14 | suppressed |
| Docetaxel | Docetaxel | 13 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 13 | suppressed |
| Alecensa | Alectinib Hcl | 12 | suppressed |
| Cabometyx | Cabozantinib S-Malate | 12 | suppressed |
| Mvasi | Bevacizumab-Awwb | 12 | suppressed |
| Opdivo | Nivolumab | 12 | suppressed |
| Keytruda | Pembrolizumab | 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 | $36.90 · 2 records | PFIZER INC. | KEYTRUDA, VYNDAQEL, WELIREG | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Keytruda play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Merck Sharp & Dohme LLC?
- 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