Payment overview · 2025
General Payments
$328.53
19 reported records · 11 companies
Healthcare provider profile · identity verified
Constantine Kashnikow, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · LIVINGSTON, NJ · NPI 1811956881
Verified facts
What the public records show
CMS Open Payments records show Constantine Kashnikow, M.D. received $328.53 in general payments during 2025 across 19 reported records.
Merck Sharp & Dohme LLC accounted for 23.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 14 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Verquvo.
E.R. Squibb & Sons, L.L.C. 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 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 380 claims for Eliquis by this doctor in 2024.
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 VERQUVO as an associated drug or biological on 38060 records involving 12268 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Verquvo by this doctor in 2024.
Novartis Pharmaceuticals 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 ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 31 claims for Entresto 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 380 claims for Eliquis 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 |
|---|---|---|---|---|---|
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $75.47 | 23.0% | 5 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $53.17 | 16.2% | 3 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $39.68 | 12.1% | 2 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $35.86 | 10.9% | 2 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $23.61 | 7.2% | 1 | 2025 |
| Edwards Lifesciences Corporation | Unresolved — no canonical attribution shown | $18.07 | 5.5% | 1 | 2025 |
| Esperion Therapeutics, Inc. | Unresolved — no canonical attribution shown | $17.81 | 5.4% | 1 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $17.06 | 5.2% | 1 | 2025 |
| Cleerly, Inc. | Unresolved — no canonical attribution shown | $16.33 | 5.0% | 1 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $16.20 | 4.9% | 1 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $15.27 | 4.7% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $328.53 | 19 |
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 |
|---|---|---|---|---|---|
| VERQUVO Normalized: verquvo |
Drug | Merck Sharp & Dohme LLC | $75.47 | 5 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $53.17 | 3 | 2025 |
Source payment records
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| LEQVIO Normalized: leqvio |
Drug | Novartis Pharmaceuticals Corporation | $39.68 | 2 | 2025 |
Source payment records
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| ELIQUIS Normalized: eliquis |
Drug | PFIZER INC. | $35.86 | 2 | 2025 |
Source payment records
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| AVEIR Normalized: aveir |
Device | Abbott Laboratories | $23.61 | 1 | 2025 |
Source payment records
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| SAPIEN 3 Ultra RESILIA Normalized: sapien 3 ultra resilia |
Device | Edwards Lifesciences Corporation | $18.07 | 1 | 2025 |
Source payment records
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| NEXLETOL Normalized: nexletol |
Drug | Esperion Therapeutics, Inc. | $17.81 | 1 | 2025 |
Source payment records
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| AREXVY Normalized: arexvy |
Biological | GlaxoSmithKline, LLC. | $17.06 | 1 | 2025 |
Source payment records
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| SHINGRIX Normalized: shingrix |
Biological | GlaxoSmithKline, LLC. | $17.06 | 1 | 2025 |
Source payment records
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| Cleerly Ischemia Normalized: cleerly ischemia |
Device | Cleerly, Inc. | $16.33 | 1 | 2025 |
Source payment records
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| Cleerly Labs Normalized: cleerly labs |
Device | Cleerly, Inc. | $16.33 | 1 | 2025 |
Source payment records
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| Repatha Normalized: repatha |
Biological | Amgen Inc. | $16.20 | 1 | 2025 |
Source payment records
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| CAMZYOS Normalized: camzyos |
Drug | E.R. Squibb & Sons, L.L.C. | $15.27 | 1 | 2025 |
Source payment records
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| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $15.04 | 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 |
|---|---|---|---|---|---|---|
| ELIQUIS eliquis |
2025 | Eliquis | 2024 | 380 | exact normalized | Medicare Part D |
| VERQUVO verquvo |
2025 | Verquvo | 2024 | 15 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 |
|---|---|---|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 27956 supporting records · 14870 recipient NPIs · example record 1184377713 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
380 | 81 |
| Merck Sharp & Dohme LLC Exact reporting entity; no affiliate inference |
2025 | VERQUVO open payments reported associated product |
CMS Open Payments — General Payments 38060 supporting records · 12268 recipient NPIs · example record 1237992208 |
Verquvo · 2024 Exact normalized brand match · 1 Part D row |
15 | suppressed by CMS |
| Novartis Pharmaceuticals Corporation Exact reporting entity; no affiliate inference |
2025 | ENTRESTO open payments reported associated product |
CMS Open Payments — General Payments 9346 supporting records · 6254 recipient NPIs · example record 1200004797 |
Entresto · 2024 Exact normalized brand match · 1 Part D row |
31 | 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 |
380 | 81 |
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 |
|---|---|---|---|
| Metoprolol Succinate | Metoprolol Succinate | 693 | 186 |
| Amlodipine Besylate | Amlodipine Besylate | 563 | 166 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 523 | 160 |
| Atorvastatin Calcium | Atorvastatin Calcium | 507 | 153 |
| Eliquis | Apixaban | 380 | 81 |
| Losartan Potassium | Losartan Potassium | 344 | 108 |
| Ezetimibe | Ezetimibe | 337 | 104 |
| Metoprolol Tartrate | Metoprolol Tartrate | 230 | 73 |
| Clopidogrel | Clopidogrel Bisulfate | 206 | 58 |
| Hydrochlorothiazide | Hydrochlorothiazide | 186 | 52 |
| Xarelto | Rivaroxaban | 170 | 36 |
| Furosemide | Furosemide | 151 | 51 |
| Carvedilol | Carvedilol | 139 | 41 |
| Torsemide | Torsemide | 134 | 48 |
| Hydralazine Hcl | Hydralazine Hcl | 122 | 32 |
| Lisinopril | Lisinopril | 117 | 36 |
| Pravastatin Sodium | Pravastatin Sodium | 101 | 28 |
| Spironolactone | Spironolactone | 92 | 29 |
| Valsartan | Valsartan | 86 | 27 |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 69 | 22 |
| Alprazolam | Alprazolam | 68 | 28 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 64 | 20 |
| Simvastatin | Simvastatin | 62 | 20 |
| Irbesartan | Irbesartan | 61 | 17 |
| Warfarin Sodium | Warfarin Sodium | 58 | 18 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 57 | 16 |
| Enalapril Maleate | Enalapril Maleate | 56 | 17 |
| Repatha Sureclick | Evolocumab | 52 | 11 |
| Nebivolol Hcl | Nebivolol Hcl | 51 | 15 |
| Flecainide Acetate | Flecainide Acetate | 46 | 13 |
| Amiodarone Hcl | Amiodarone Hcl | 42 | 13 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 42 | 13 |
| Jardiance | Empagliflozin | 39 | 13 |
| Nifedipine Er | Nifedipine | 39 | suppressed |
| Atenolol | Atenolol | 38 | 12 |
| Telmisartan | Telmisartan | 38 | 11 |
| Digoxin | Digoxin | 36 | suppressed |
| Entresto | Sacubitril/Valsartan | 31 | suppressed |
| Levothyroxine Sodium | Levothyroxine Sodium | 31 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 31 | suppressed |
| Ranolazine Er | Ranolazine | 31 | suppressed |
| Edarbyclor | Azilsartan Med/Chlorthalidone | 30 | suppressed |
| Potassium Chloride | Potassium Chloride | 29 | 11 |
| Ramipril | Ramipril | 29 | suppressed |
| Irbesartan-Hydrochlorothiazide | Irbesartan/Hydrochlorothiazide | 27 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 25 | suppressed |
| Lorazepam | Lorazepam | 22 | suppressed |
| Bystolic | Nebivolol Hcl | 21 | suppressed |
| Allopurinol | Allopurinol | 20 | suppressed |
| Pantoprazole Sodium | Pantoprazole Sodium | 19 | suppressed |
| Sotalol | Sotalol Hcl | 19 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 18 | suppressed |
| Chlorthalidone | Chlorthalidone | 16 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 16 | suppressed |
| Diltiazem 24hr Er | Diltiazem Hcl | 15 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 15 | suppressed |
| Verquvo | Vericiguat | 15 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 14 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 14 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 14 | suppressed |
| Diovan | Valsartan | 13 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 13 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 12 | suppressed |
| Plavix | Clopidogrel Bisulfate | 12 | suppressed |
| Zetia | Ezetimibe | 12 | suppressed |
| Ezetimibe-Simvastatin | Ezetimibe/Simvastatin | 11 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 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 | $328.53 · 19 records | Merck Sharp & Dohme LLC | AREXVY, AVEIR, CAMZYOS, CAPVAXIVE, Cleerly Ischemia, Cleerly Labs, ELIQUIS, LEQVIO, NEXLETOL, Repatha, SAPIEN 3 Ultra RESILIA, SHINGRIX, VERQUVO, Wegovy | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Eliquis play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with E.R. Squibb & Sons, L.L.C.?
- 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