Payment overview · 2025
General Payments
$37.62
2 reported records · 2 companies
Healthcare provider profile · identity verified
Derek B Carpenter, PA-C
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · CASA GRANDE, AZ · NPI 1114320959
Verified facts
What the public records show
CMS Open Payments records show Derek B Carpenter, PA-C received $37.62 in general payments during 2025 across 2 reported records.
Exact Sciences Corporation accounted for 50.5% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 associated products.
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 |
|---|---|---|---|---|---|
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $19.01 | 50.5% | 1 | 2025 |
| Abbott Laboratories | Unresolved — no canonical attribution shown | $18.61 | 49.5% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $37.62 | 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 |
|---|---|---|---|---|---|
| Cologuard Collection Kit Normalized: cologuard collection kit |
Device | Exact Sciences Corporation | $19.01 | 1 | 2025 |
Source payment records
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| FREESTYLE LIBRE 3 Normalized: freestyle libre 3 |
Device | Abbott Laboratories | $18.61 | 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
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
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.
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
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 576 | 261 |
| Levothyroxine Sodium | Levothyroxine Sodium | 411 | 162 |
| Lisinopril | Lisinopril | 382 | 158 |
| Amlodipine Besylate | Amlodipine Besylate | 353 | 165 |
| Losartan Potassium | Losartan Potassium | 306 | 136 |
| Metformin Hcl | Metformin Hcl | 256 | 123 |
| Omeprazole | Omeprazole | 255 | 102 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 219 | 89 |
| Gabapentin | Gabapentin | 198 | 77 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 172 | 65 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 163 | 68 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 159 | 60 |
| Pantoprazole Sodium | Pantoprazole Sodium | 153 | 69 |
| Metformin Hcl Er | Metformin Hcl | 151 | 62 |
| Glipizide | Glipizide | 142 | 67 |
| Tamsulosin Hcl | Tamsulosin Hcl | 132 | 63 |
| Fluticasone Propionate | Fluticasone Propionate | 131 | 60 |
| Trulicity | Dulaglutide | 130 | 34 |
| Furosemide | Furosemide | 128 | 52 |
| Hydrochlorothiazide | Hydrochlorothiazide | 127 | 59 |
| Trazodone Hcl | Trazodone Hcl | 123 | 46 |
| Metoprolol Succinate | Metoprolol Succinate | 118 | 44 |
| Simvastatin | Simvastatin | 118 | 50 |
| Jardiance | Empagliflozin | 111 | 42 |
| Pravastatin Sodium | Pravastatin Sodium | 102 | 44 |
| Potassium Chloride | Potassium Chloride | 101 | 39 |
| Metoprolol Tartrate | Metoprolol Tartrate | 98 | 40 |
| Famotidine | Famotidine | 88 | 34 |
| Sertraline Hcl | Sertraline Hcl | 85 | 39 |
| Lovastatin | Lovastatin | 71 | 32 |
| Montelukast Sodium | Montelukast Sodium | 71 | 29 |
| Fluoxetine Hcl | Fluoxetine Hcl | 68 | 22 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 66 | 33 |
| Diclofenac Sodium | Diclofenac Sodium | 59 | 28 |
| Alendronate Sodium | Alendronate Sodium | 58 | 19 |
| Meloxicam | Meloxicam | 56 | 28 |
| Warfarin Sodium | Warfarin Sodium | 52 | 15 |
| Allopurinol | Allopurinol | 49 | 16 |
| Celecoxib | Celecoxib | 49 | 16 |
| Clopidogrel | Clopidogrel Bisulfate | 49 | 20 |
| Duloxetine Hcl | Duloxetine Hcl | 48 | 19 |
| Oxybutynin Chloride | Oxybutynin Chloride | 48 | 16 |
| Ibuprofen | Ibuprofen | 46 | 24 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 45 | 18 |
| Naproxen | Naproxen | 44 | 19 |
| Carvedilol | Carvedilol | 43 | 22 |
| Meclizine Hcl | Meclizine Hcl | 43 | 13 |
| Glipizide Er | Glipizide | 40 | 17 |
| Pioglitazone Hcl | Pioglitazone Hcl | 40 | 15 |
| Fenofibrate | Fenofibrate | 39 | 18 |
| Buspirone Hcl | Buspirone Hcl | 38 | 17 |
| Eliquis | Apixaban | 37 | 14 |
| Amitriptyline Hcl | Amitriptyline Hcl | 36 | 14 |
| Atenolol | Atenolol | 36 | 15 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 35 | suppressed |
| Ozempic | Semaglutide | 32 | 14 |
| Prednisone | Prednisone | 32 | 20 |
| Tizanidine Hcl | Tizanidine Hcl | 32 | 14 |
| Baclofen | Baclofen | 31 | 14 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 30 | 16 |
| Azithromycin | Azithromycin | 29 | 28 |
| Finasteride | Finasteride | 29 | 14 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 29 | 18 |
| Hydralazine Hcl | Hydralazine Hcl | 28 | 13 |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 28 | 13 |
| Ondansetron Hcl | Ondansetron Hcl | 28 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 28 | 12 |
| Azelastine Hcl | Azelastine Hcl | 27 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 27 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 27 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 27 | 11 |
| Glimepiride | Glimepiride | 26 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 25 | 15 |
| Ezetimibe | Ezetimibe | 24 | 13 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 23 | suppressed |
| Sucralfate | Sucralfate | 23 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 23 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 22 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 22 | suppressed |
| Nifedipine Er | Nifedipine | 22 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 21 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 20 | 11 |
| Escitalopram Oxalate | Escitalopram Oxalate | 20 | 11 |
| Mounjaro | Tirzepatide | 20 | suppressed |
| Testosterone Cypionate | Testosterone Cypionate | 20 | suppressed |
| Methylprednisolone | Methylprednisolone | 19 | 19 |
| Sumatriptan Succinate | Sumatriptan Succinate | 19 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 18 | 15 |
| Estradiol | Estradiol | 17 | suppressed |
| Fluconazole | Fluconazole | 17 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 16 | suppressed |
| Bupropion Xl | Bupropion Hcl | 15 | suppressed |
| Clonazepam | Clonazepam | 15 | suppressed |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 15 | 13 |
| Januvia | Sitagliptin Phosphate | 15 | suppressed |
| Nystatin | Nystatin | 15 | suppressed |
| Alprazolam | Alprazolam | 14 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 14 | suppressed |
| Synthroid | Levothyroxine Sodium | 14 | suppressed |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 14 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 14 | suppressed |
| Amoxicillin | Amoxicillin | 13 | suppressed |
| Chlorthalidone | Chlorthalidone | 13 | suppressed |
| Folic Acid | Folic Acid | 13 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 13 | suppressed |
| Spironolactone | Spironolactone | 13 | suppressed |
| Venlafaxine Hcl | Venlafaxine Hcl | 13 | suppressed |
| Bumetanide | Bumetanide | 12 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 12 | suppressed |
| Insulin Lispro Kwikpen U-100 | Insulin Lispro | 12 | suppressed |
| Tresiba Flextouch U-200 | Insulin Degludec | 12 | suppressed |
| Ultra-Fine Nano Pen Needle | Pen Needle, Diabetic | 12 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 12 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 11 | suppressed |
| Diazepam | Diazepam | 11 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 11 | suppressed |
| Repatha Sureclick | Evolocumab | 11 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 11 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 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 | $37.62 · 2 records | Exact Sciences Corporation | Cologuard Collection Kit, FREESTYLE LIBRE 3 | — | — |
| 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