Payment overview · 2025
General Payments
$784.84
50 reported records · 12 companies
Healthcare provider profile · identity verified
David K Arenstein, MD
Allopathic & Osteopathic Physicians|Family Medicine · KALAMAZOO, MI · NPI 1083273734
Verified facts
What the public records show
CMS Open Payments records show David K Arenstein, MD received $784.84 in general payments during 2025 across 50 reported records.
ABBVIE INC. accounted for 31.4% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 26 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic, Synthroid.
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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Synthroid by this doctor in 2024.
Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 95 claims for Jardiance by this doctor in 2024.
Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 54 claims for Ozempic 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 52 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 |
|---|---|---|---|---|---|
| ABBVIE INC. | Unresolved — no canonical attribution shown | $246.79 | 31.4% | 16 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $144.38 | 18.4% | 12 | 2025 |
| Novo Nordisk Inc | Unresolved — no canonical attribution shown | $107.84 | 13.7% | 6 | 2025 |
| Astellas Pharma US Inc | Unresolved — no canonical attribution shown | $90.96 | 11.6% | 4 | 2025 |
| Axsome Therapeutics, Inc. | Unresolved — no canonical attribution shown | $30.17 | 3.8% | 2 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $28.48 | 3.6% | 2 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $28.13 | 3.6% | 2 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $28.07 | 3.6% | 2 | 2025 |
| Lundbeck LLC | Unresolved — no canonical attribution shown | $25.65 | 3.3% | 1 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $21.90 | 2.8% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $18.41 | 2.4% | 1 | 2025 |
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $14.06 | 1.8% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $784.84 | 50 |
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 |
|---|---|---|---|---|---|
| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $144.38 | 12 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $137.03 | 8 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $114.42 | 6 | 2025 |
Source payment records
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| VRAYLAR Normalized: vraylar |
Drug | ABBVIE INC. | $109.76 | 8 | 2025 |
Source payment records
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| Veozah Normalized: veozah |
Drug | Astellas Pharma US Inc | $90.96 | 4 | 2025 |
Source payment records
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| Ozempic Normalized: ozempic |
Drug | Novo Nordisk Inc | $90.01 | 5 | 2025 |
Source payment records
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| Rybelsus Normalized: rybelsus |
Drug | Novo Nordisk Inc | $72.01 | 4 | 2025 |
Source payment records
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| Auvelity Normalized: auvelity |
Drug | Axsome Therapeutics, Inc. | $30.17 | 2 | 2025 |
Source payment records
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| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $28.48 | 2 | 2025 |
Source payment records
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| GARDASIL 9 Normalized: gardasil 9 |
Biological | Merck Sharp & Dohme LLC | $28.48 | 2 | 2025 |
Source payment records
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| VAXNEUVANCE Normalized: vaxneuvance |
Biological | Merck Sharp & Dohme LLC | $28.48 | 2 | 2025 |
Source payment records
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| REXULTI Normalized: rexulti |
Drug | Lundbeck LLC | $25.65 | 1 | 2025 |
Source payment records
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| Cologuard Collection Kit Normalized: cologuard collection kit |
Device | Exact Sciences Corporation | $21.90 | 1 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $18.41 | 1 | 2025 |
Source payment records
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| ZEPBOUND Normalized: zepbound |
Drug | Lilly USA, LLC | $18.41 | 1 | 2025 |
Source payment records
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| Wegovy Normalized: wegovy |
Drug | Novo Nordisk Inc | $17.83 | 1 | 2025 |
Source payment records
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| NURTEC ODT Normalized: nurtec odt |
Drug | PFIZER INC. | $14.57 | 1 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $14.47 | 1 | 2025 |
Source payment records
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| ROTATEQ Normalized: rotateq |
Biological | Merck Sharp & Dohme LLC | $14.37 | 1 | 2025 |
Source payment records
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| VAXELIS Normalized: vaxelis |
Biological | Merck Sharp & Dohme LLC | $14.37 | 1 | 2025 |
Source payment records
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| ENFLONSIA Normalized: enflonsia |
Drug | Merck Sharp & Dohme LLC | $14.11 | 1 | 2025 |
Source payment records
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| M-M-R II Normalized: m m r ii |
Biological | Merck Sharp & Dohme LLC | $14.11 | 1 | 2025 |
Source payment records
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| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $14.06 | 1 | 2025 |
Source payment records
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| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $13.60 | 1 | 2025 |
Source payment records
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| PAXLOVID Normalized: paxlovid |
Drug | PFIZER INC. | $13.56 | 1 | 2025 |
Source payment records
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| SYNTHROID Normalized: synthroid |
Drug | ABBVIE INC. | $11.30 | 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 |
|---|---|---|---|---|---|---|
| Ozempic ozempic |
2025 | Ozempic | 2024 | 54 | exact normalized | Medicare Part D |
| SYNTHROID synthroid |
2025 | Synthroid | 2024 | 20 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 |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
20 | suppressed by CMS |
| Lilly USA, LLC Exact reporting entity; no affiliate inference |
2025 | JARDIANCE open payments reported associated product |
CMS Open Payments — General Payments 47708 supporting records · 23833 recipient NPIs · example record 1186464557 |
Jardiance · 2024 Exact normalized brand match · 1 Part D row |
95 | 26 |
| Novo Nordisk Inc Exact reporting entity; no affiliate inference |
2025 | Ozempic open payments reported associated product |
CMS Open Payments — General Payments 261625 supporting records · 77793 recipient NPIs · example record 1188130076 |
Ozempic · 2024 Exact normalized brand match · 1 Part D row |
54 | 14 |
| 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 |
52 | 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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 248 | 87 |
| Losartan Potassium | Losartan Potassium | 195 | 69 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 181 | 67 |
| Amlodipine Besylate | Amlodipine Besylate | 173 | 54 |
| Lisinopril | Lisinopril | 165 | 64 |
| Levothyroxine Sodium | Levothyroxine Sodium | 158 | 47 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 136 | 34 |
| Hydrochlorothiazide | Hydrochlorothiazide | 113 | 40 |
| Metformin Hcl | Metformin Hcl | 113 | 35 |
| Omeprazole | Omeprazole | 101 | 39 |
| Gabapentin | Gabapentin | 96 | 34 |
| Jardiance | Empagliflozin | 95 | 26 |
| Metoprolol Succinate | Metoprolol Succinate | 86 | 28 |
| Pantoprazole Sodium | Pantoprazole Sodium | 86 | 29 |
| Trazodone Hcl | Trazodone Hcl | 83 | 29 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 68 | 36 |
| Fluticasone Propionate | Fluticasone Propionate | 59 | 19 |
| Pravastatin Sodium | Pravastatin Sodium | 59 | 18 |
| Simvastatin | Simvastatin | 55 | 16 |
| Ozempic | Semaglutide | 54 | 14 |
| Prednisone | Prednisone | 54 | 37 |
| Glimepiride | Glimepiride | 53 | 14 |
| Eliquis | Apixaban | 52 | 16 |
| Alendronate Sodium | Alendronate Sodium | 51 | 17 |
| Duloxetine Hcl | Duloxetine Hcl | 45 | 12 |
| Allopurinol | Allopurinol | 44 | 13 |
| Citalopram Hbr | Citalopram Hydrobromide | 42 | 12 |
| Doxycycline Hyclate | Doxycycline Hyclate | 42 | 40 |
| Buspirone Hcl | Buspirone Hcl | 34 | 13 |
| Potassium Chloride | Potassium Chloride | 33 | 14 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 32 | 13 |
| Sertraline Hcl | Sertraline Hcl | 32 | 13 |
| Escitalopram Oxalate | Escitalopram Oxalate | 31 | 11 |
| Furosemide | Furosemide | 31 | 17 |
| Tamsulosin Hcl | Tamsulosin Hcl | 31 | suppressed |
| Valsartan | Valsartan | 31 | suppressed |
| Carvedilol | Carvedilol | 29 | 11 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 29 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 27 | suppressed |
| Baclofen | Baclofen | 26 | 11 |
| Montelukast Sodium | Montelukast Sodium | 26 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 26 | 23 |
| Clopidogrel | Clopidogrel Bisulfate | 25 | 11 |
| Ropinirole Hcl | Ropinirole Hcl | 25 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 24 | suppressed |
| Bupropion Xl | Bupropion Hcl | 23 | suppressed |
| Pregabalin | Pregabalin | 22 | suppressed |
| Topiramate | Topiramate | 21 | 11 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 21 | suppressed |
| Ezetimibe | Ezetimibe | 20 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 20 | suppressed |
| Synthroid | Levothyroxine Sodium | 20 | suppressed |
| Glipizide Er | Glipizide | 19 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 19 | suppressed |
| Arnuity Ellipta | Fluticasone Furoate | 18 | suppressed |
| Famotidine | Famotidine | 18 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 18 | suppressed |
| Glipizide | Glipizide | 17 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 17 | suppressed |
| Methylprednisolone | Methylprednisolone | 17 | 16 |
| Terazosin Hcl | Terazosin Hcl | 17 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 17 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 16 | 14 |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 16 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 16 | suppressed |
| Lorazepam | Lorazepam | 16 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 16 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 16 | suppressed |
| Fenofibrate | Fenofibrate | 15 | suppressed |
| Eletriptan Hbr | Eletriptan Hydrobromide | 14 | suppressed |
| Incruse Ellipta | Umeclidinium Bromide | 14 | suppressed |
| Varenicline Tartrate | Varenicline Tartrate | 14 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 13 | suppressed |
| Lyumjev Kwikpen U-100 | Insulin Lispro-Aabc | 13 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 13 | suppressed |
| Bisoprolol-Hydrochlorothiazide | Bisoprolol/Hydrochlorothiazide | 12 | suppressed |
| Cephalexin | Cephalexin | 12 | suppressed |
| Memantine Hcl | Memantine Hcl | 12 | suppressed |
| Atenolol | Atenolol | 11 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 11 | suppressed |
| Finasteride | Finasteride | 11 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 11 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 11 | suppressed |
| Zolpidem Tartrate Er | Zolpidem Tartrate | 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 | $784.84 · 50 records | ABBVIE INC. | AIRSUPRA, Auvelity, CAPVAXIVE, Cologuard Collection Kit, ENFLONSIA, FARXIGA, FREESTYLE LIBRE 3, GARDASIL 9, M-M-R II, MOUNJARO, NURTEC ODT, Ozempic, PAXLOVID, QULIPTA, REXULTI, ROTATEQ, Rybelsus, SYNTHROID, UBRELVY, VAXELIS, VAXNEUVANCE, VOQUEZNA, VRAYLAR, Veozah, Wegovy, ZEPBOUND | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Ozempic play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ABBVIE 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