Payment overview · 2025
General Payments
We did not find matching Open Payments records for this doctor in the selected program year.
Healthcare provider profile · identity verified
Stephen A Carp, D.O.
Internal Medicine · KEIZER, OR · NPI 1881638310
Verified facts
What the public records show
We did not find matching Open Payments records for this doctor in 2025.
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.
Analysis 1 · Payment-linked products
Products named in Open Payments records
No payment-linked product analysis is available because no matching General Payment records were found for the selected year.
Public prescribing for products named in payments
There is no explicit payment-product set available for a Part D comparison.
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.
There is no payer-company set available for this comparison.
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 | 718 | 193 |
| Levothyroxine Sodium | Levothyroxine Sodium | 476 | 115 |
| Amlodipine Besylate | Amlodipine Besylate | 461 | 127 |
| Losartan Potassium | Losartan Potassium | 395 | 117 |
| Omeprazole | Omeprazole | 386 | 108 |
| Furosemide | Furosemide | 349 | 73 |
| Ezetimibe | Ezetimibe | 348 | 85 |
| Potassium Chloride | Potassium Chloride | 342 | 90 |
| Metoprolol Succinate | Metoprolol Succinate | 322 | 80 |
| Escitalopram Oxalate | Escitalopram Oxalate | 264 | 60 |
| Gabapentin | Gabapentin | 262 | 63 |
| Lisinopril | Lisinopril | 236 | 65 |
| Eliquis | Apixaban | 209 | 40 |
| Trazodone Hcl | Trazodone Hcl | 203 | 52 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 198 | 53 |
| Montelukast Sodium | Montelukast Sodium | 187 | 39 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 179 | 72 |
| Duloxetine Hcl | Duloxetine Hcl | 173 | 36 |
| Jardiance | Empagliflozin | 166 | 33 |
| Pantoprazole Sodium | Pantoprazole Sodium | 141 | 38 |
| Trulicity | Dulaglutide | 141 | 24 |
| Sertraline Hcl | Sertraline Hcl | 137 | 32 |
| Fluticasone Propionate | Fluticasone Propionate | 135 | 57 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 128 | 31 |
| Allopurinol | Allopurinol | 123 | 34 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 112 | 26 |
| Famotidine | Famotidine | 111 | 30 |
| Clopidogrel | Clopidogrel Bisulfate | 108 | 24 |
| Buspirone Hcl | Buspirone Hcl | 104 | 19 |
| Alendronate Sodium | Alendronate Sodium | 96 | 25 |
| Hydrochlorothiazide | Hydrochlorothiazide | 90 | 32 |
| Metformin Hcl | Metformin Hcl | 90 | 33 |
| Donepezil Hcl | Donepezil Hcl | 88 | 19 |
| Simvastatin | Simvastatin | 87 | 25 |
| Metoprolol Tartrate | Metoprolol Tartrate | 86 | 25 |
| Pravastatin Sodium | Pravastatin Sodium | 85 | 27 |
| Bupropion Xl | Bupropion Hcl | 82 | 25 |
| Warfarin Sodium | Warfarin Sodium | 71 | 22 |
| Nitroglycerin | Nitroglycerin | 67 | 50 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 66 | 12 |
| Tramadol Hcl | Tramadol Hcl | 66 | 21 |
| Carvedilol | Carvedilol | 65 | 18 |
| Tamsulosin Hcl | Tamsulosin Hcl | 64 | 21 |
| Prednisone | Prednisone | 63 | 40 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 62 | 19 |
| Clonidine Hcl | Clonidine Hcl | 61 | 14 |
| Spironolactone | Spironolactone | 61 | 20 |
| Alprazolam | Alprazolam | 57 | 14 |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 56 | 13 |
| Methocarbamol | Methocarbamol | 55 | 22 |
| Spiriva Handihaler | Tiotropium Bromide | 53 | suppressed |
| Ozempic | Semaglutide | 47 | 11 |
| Azithromycin | Azithromycin | 45 | 41 |
| Oxycodone Hcl | Oxycodone Hcl | 44 | 17 |
| Xarelto | Rivaroxaban | 44 | 11 |
| Ropinirole Hcl | Ropinirole Hcl | 42 | 14 |
| Atenolol | Atenolol | 41 | suppressed |
| Mupirocin | Mupirocin | 41 | 37 |
| Citalopram Hbr | Citalopram Hydrobromide | 39 | 13 |
| Pregabalin | Pregabalin | 38 | 13 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 38 | 27 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 36 | 11 |
| Metformin Hcl Er | Metformin Hcl | 36 | 11 |
| Mounjaro | Tirzepatide | 35 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 35 | 14 |
| Cephalexin | Cephalexin | 34 | 26 |
| Dutasteride | Dutasteride | 34 | suppressed |
| Memantine Hcl | Memantine Hcl | 34 | suppressed |
| Ondansetron Odt | Ondansetron | 34 | 15 |
| Torsemide | Torsemide | 34 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 34 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 33 | 29 |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 33 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 32 | suppressed |
| Lorazepam | Lorazepam | 32 | 12 |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 31 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 30 | suppressed |
| Repatha Sureclick | Evolocumab | 30 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 30 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 29 | suppressed |
| Advair Hfa | Fluticasone Propion/Salmeterol | 28 | suppressed |
| Chlorthalidone | Chlorthalidone | 28 | suppressed |
| Hydrocortisone | Hydrocortisone | 28 | 12 |
| Ranolazine Er | Ranolazine | 28 | suppressed |
| Glimepiride | Glimepiride | 27 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 27 | suppressed |
| Mirtazapine | Mirtazapine | 27 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 27 | suppressed |
| Nystatin | Nystatin | 26 | 14 |
| Primidone | Primidone | 23 | suppressed |
| Glipizide Er | Glipizide | 22 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 22 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 21 | suppressed |
| Clonazepam | Clonazepam | 21 | suppressed |
| Acyclovir | Acyclovir | 20 | suppressed |
| Incruse Ellipta | Umeclidinium Bromide | 20 | suppressed |
| Levetiracetam | Levetiracetam | 20 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 20 | suppressed |
| Baclofen | Baclofen | 19 | suppressed |
| Fenofibrate | Fenofibrate | 19 | suppressed |
| Latanoprost | Latanoprost | 19 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 19 | suppressed |
| Timolol Maleate | Timolol Maleate | 19 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 19 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 18 | suppressed |
| Gemtesa | Vibegron | 18 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 18 | suppressed |
| Irbesartan | Irbesartan | 18 | suppressed |
| Liothyronine Sodium | Liothyronine Sodium | 18 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 17 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 17 | suppressed |
| Doxepin Hcl | Doxepin Hcl | 17 | suppressed |
| Flecainide Acetate | Flecainide Acetate | 17 | suppressed |
| Repatha Syringe | Evolocumab | 17 | suppressed |
| Risperidone | Risperidone | 17 | suppressed |
| Topiramate | Topiramate | 17 | suppressed |
| Toujeo Max Solostar | Insulin Glargine,hum.Rec.Anlog | 17 | suppressed |
| Estradiol | Estradiol | 16 | suppressed |
| Fluconazole | Fluconazole | 16 | 14 |
| Insulin Aspart Flexpen | Insulin Aspart | 16 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 16 | suppressed |
| Bumetanide | Bumetanide | 15 | suppressed |
| Butalbital-Acetaminophen-Caffe | Butalb/Acetaminophen/Caffeine | 15 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 15 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 15 | suppressed |
| Prochlorperazine Maleate | Prochlorperazine Maleate | 15 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 15 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 15 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 14 | suppressed |
| Aripiprazole | Aripiprazole | 14 | suppressed |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 14 | suppressed |
| Celecoxib | Celecoxib | 14 | suppressed |
| Clonidine | Clonidine | 14 | suppressed |
| Hydroxyzine Pamoate | Hydroxyzine Pamoate | 14 | suppressed |
| Lactulose | Lactulose | 14 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 14 | suppressed |
| Morphine Sulfate Er | Morphine Sulfate | 14 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 14 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 14 | suppressed |
| Folic Acid | Folic Acid | 13 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 12 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 12 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 12 | suppressed |
| Olanzapine | Olanzapine | 12 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 12 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 11 | suppressed |
| Diltiazem 24hr Er (La) | Diltiazem Hcl | 11 | suppressed |
| Finasteride | Finasteride | 11 | suppressed |
| Tresiba Flextouch U-100 | Insulin Degludec | 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 | — | — | — | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- 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