Payment overview · 2025
General Payments
5 reported records · 3 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Internal Medicine · LIBERTY TWP, OH · NPI 1467885475
Verified facts
CMS Open Payments records show Dwayne O.M. Walker, M.D. received $97.19 in general payments during 2025 across 5 reported records.
Dexcom, Inc. accounted for 37.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 3 associated products.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
5 reported records · 3 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Dexcom, Inc. | Unresolved — no canonical attribution shown | $36.65 | 37.7% | 2 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $36.43 | 37.5% | 2 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $24.11 | 24.8% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $97.19 | 5 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Dexcom G6 Transmitter Normalized: dexcom g6 transmitter |
Medical Supply | Dexcom, Inc. | $36.65 | 2 | 2025 |
Source payment records
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| The Cologuard Plus Collection Kit Normalized: the cologuard plus collection kit |
Device | Exact Sciences Corporation | $36.43 | 2 | 2025 |
Source payment records
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| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $24.11 | 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.
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
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.
None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.
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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 323 | 83 |
| Amlodipine Besylate | Amlodipine Besylate | 213 | 53 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 180 | 47 |
| Lisinopril | Lisinopril | 176 | 44 |
| Levothyroxine Sodium | Levothyroxine Sodium | 166 | 36 |
| Metformin Hcl | Metformin Hcl | 157 | 37 |
| Gabapentin | Gabapentin | 155 | 34 |
| Pantoprazole Sodium | Pantoprazole Sodium | 137 | 37 |
| Valsartan | Valsartan | 136 | 35 |
| Jardiance | Empagliflozin | 130 | 26 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 127 | 37 |
| Omeprazole | Omeprazole | 122 | 29 |
| Metoprolol Succinate | Metoprolol Succinate | 112 | 32 |
| Pravastatin Sodium | Pravastatin Sodium | 103 | 27 |
| Losartan Potassium | Losartan Potassium | 102 | 27 |
| Trazodone Hcl | Trazodone Hcl | 95 | 24 |
| Fluticasone Propionate | Fluticasone Propionate | 90 | 37 |
| Glipizide Er | Glipizide | 85 | 16 |
| Metformin Hcl Er | Metformin Hcl | 82 | 18 |
| Tamsulosin Hcl | Tamsulosin Hcl | 78 | 18 |
| Escitalopram Oxalate | Escitalopram Oxalate | 77 | 19 |
| Ozempic | Semaglutide | 77 | 14 |
| Furosemide | Furosemide | 67 | 22 |
| Nifedipine Er | Nifedipine | 67 | 21 |
| Hydrochlorothiazide | Hydrochlorothiazide | 63 | 17 |
| Duloxetine Hcl | Duloxetine Hcl | 62 | 13 |
| Mounjaro | Tirzepatide | 62 | 16 |
| Ezetimibe | Ezetimibe | 60 | 17 |
| Carvedilol | Carvedilol | 59 | 17 |
| Tizanidine Hcl | Tizanidine Hcl | 59 | 20 |
| Allopurinol | Allopurinol | 57 | 11 |
| Simvastatin | Simvastatin | 56 | 11 |
| Celecoxib | Celecoxib | 51 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 49 | 12 |
| Clopidogrel | Clopidogrel Bisulfate | 45 | 15 |
| Potassium Chloride | Potassium Chloride | 45 | 11 |
| Alendronate Sodium | Alendronate Sodium | 42 | 14 |
| Januvia | Sitagliptin Phosphate | 41 | 11 |
| Famotidine | Famotidine | 40 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 40 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 40 | suppressed |
| Eliquis | Apixaban | 39 | suppressed |
| Ondansetron Odt | Ondansetron | 39 | 13 |
| Metoprolol Tartrate | Metoprolol Tartrate | 38 | 12 |
| Hydralazine Hcl | Hydralazine Hcl | 35 | suppressed |
| Azithromycin | Azithromycin | 34 | 28 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 30 | 22 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 30 | 12 |
| Glimepiride | Glimepiride | 29 | suppressed |
| Finasteride | Finasteride | 28 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 28 | 11 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 25 | suppressed |
| Methylprednisolone | Methylprednisolone | 25 | 22 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 25 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 25 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 25 | 22 |
| Sucralfate | Sucralfate | 23 | suppressed |
| Fenofibrate | Fenofibrate | 22 | suppressed |
| Nystatin | Nystatin | 21 | suppressed |
| Pregabalin | Pregabalin | 21 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 20 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 20 | suppressed |
| Lovastatin | Lovastatin | 20 | suppressed |
| Prednisone | Prednisone | 20 | 16 |
| Azelastine Hcl | Azelastine Hcl | 18 | suppressed |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 18 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 18 | suppressed |
| Atenolol | Atenolol | 17 | suppressed |
| Glipizide | Glipizide | 17 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 17 | suppressed |
| Meloxicam | Meloxicam | 17 | suppressed |
| Spironolactone | Spironolactone | 17 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 16 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 16 | suppressed |
| Xarelto | Rivaroxaban | 16 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 15 | suppressed |
| Tresiba Flextouch U-100 | Insulin Degludec | 15 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 14 | suppressed |
| Tradjenta | Linagliptin | 14 | suppressed |
| Aripiprazole | Aripiprazole | 13 | suppressed |
| Dropsafe Prep Pads | Alcohol Antiseptic Pads | 13 | suppressed |
| Lamotrigine | Lamotrigine | 13 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 13 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 13 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 12 | suppressed |
| Insulin Lispro Kwikpen U-100 | Insulin Lispro | 12 | suppressed |
| Methenamine Hippurate | Methenamine Hippurate | 12 | suppressed |
| Pen Needle | Pen Needle, Diabetic | 12 | suppressed |
| Warfarin Sodium | Warfarin Sodium | 12 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 11 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 11 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 11 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 11 | suppressed |
| Nexletol | Bempedoic Acid | 11 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 11 | suppressed |
Timeline
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 | $97.19 · 5 records | Dexcom, Inc. | Dexcom G6 Transmitter, FREESTYLE LIBRE 3, The Cologuard Plus Collection Kit | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| 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