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
Internal Medicine · WATERLOO, IA · NPI 1225238280
Verified facts
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.
Payment overview · 2025
We did not find matching Open Payments records for this doctor in the selected program year.
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.
Analysis 1 · Payment-linked products
No payment-linked product analysis is available because no matching General Payment records were found for the selected year.
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
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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 529 | 120 |
| Levothyroxine Sodium | Levothyroxine Sodium | 492 | 113 |
| Furosemide | Furosemide | 361 | 82 |
| Amlodipine Besylate | Amlodipine Besylate | 356 | 84 |
| Lisinopril | Lisinopril | 332 | 85 |
| Gabapentin | Gabapentin | 327 | 68 |
| Omeprazole | Omeprazole | 307 | 78 |
| Losartan Potassium | Losartan Potassium | 306 | 75 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 262 | 77 |
| Pantoprazole Sodium | Pantoprazole Sodium | 259 | 60 |
| Metoprolol Succinate | Metoprolol Succinate | 243 | 60 |
| Simvastatin | Simvastatin | 222 | 51 |
| Hydrochlorothiazide | Hydrochlorothiazide | 195 | 51 |
| Warfarin Sodium | Warfarin Sodium | 180 | 23 |
| Metoprolol Tartrate | Metoprolol Tartrate | 175 | 38 |
| Potassium Chloride | Potassium Chloride | 167 | 35 |
| Allopurinol | Allopurinol | 155 | 35 |
| Metformin Hcl | Metformin Hcl | 152 | 38 |
| Tamsulosin Hcl | Tamsulosin Hcl | 148 | 36 |
| Escitalopram Oxalate | Escitalopram Oxalate | 133 | 34 |
| Trazodone Hcl | Trazodone Hcl | 130 | 30 |
| Montelukast Sodium | Montelukast Sodium | 128 | 29 |
| Pravastatin Sodium | Pravastatin Sodium | 127 | 27 |
| Alendronate Sodium | Alendronate Sodium | 115 | 23 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 111 | 37 |
| Ozempic | Semaglutide | 110 | 15 |
| Spironolactone | Spironolactone | 92 | 18 |
| Metformin Hcl Er | Metformin Hcl | 90 | 18 |
| Sertraline Hcl | Sertraline Hcl | 88 | 25 |
| Fenofibrate | Fenofibrate | 83 | 28 |
| Citalopram Hbr | Citalopram Hydrobromide | 74 | 14 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 74 | 12 |
| Tramadol Hcl | Tramadol Hcl | 70 | 25 |
| Duloxetine Hcl | Duloxetine Hcl | 69 | 17 |
| Jardiance | Empagliflozin | 69 | 13 |
| Meloxicam | Meloxicam | 67 | 28 |
| Fenofibrate | Fenofibrate Nanocrystallized | 64 | 15 |
| Finasteride | Finasteride | 62 | 14 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 61 | 13 |
| Alprazolam | Alprazolam | 58 | suppressed |
| Celecoxib | Celecoxib | 58 | 13 |
| Clonazepam | Clonazepam | 58 | suppressed |
| Myrbetriq | Mirabegron | 57 | suppressed |
| Prednisone | Prednisone | 57 | 29 |
| Glipizide | Glipizide | 55 | 14 |
| Clopidogrel | Clopidogrel Bisulfate | 54 | 13 |
| Eliquis | Apixaban | 51 | suppressed |
| Carvedilol | Carvedilol | 50 | 13 |
| Tizanidine Hcl | Tizanidine Hcl | 50 | 27 |
| Lovastatin | Lovastatin | 48 | 12 |
| Glipizide Er | Glipizide | 47 | 14 |
| Mounjaro | Tirzepatide | 47 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 45 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 42 | 21 |
| Azithromycin | Azithromycin | 41 | 37 |
| Fluticasone Propionate | Fluticasone Propionate | 41 | 11 |
| Pregabalin | Pregabalin | 41 | 11 |
| Synthroid | Levothyroxine Sodium | 41 | 12 |
| Nortriptyline Hcl | Nortriptyline Hcl | 40 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 39 | 35 |
| Famotidine | Famotidine | 39 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 38 | suppressed |
| Cholestyramine | Cholestyramine (With Sugar) | 38 | 11 |
| Lorazepam | Lorazepam | 38 | suppressed |
| Cephalexin | Cephalexin | 37 | 31 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 37 | 25 |
| Bumetanide | Bumetanide | 34 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 34 | 12 |
| Zolpidem Tartrate | Zolpidem Tartrate | 33 | 11 |
| Fluoxetine Hcl | Fluoxetine Hcl | 32 | 11 |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 31 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 31 | suppressed |
| Januvia | Sitagliptin Phosphate | 31 | suppressed |
| Irbesartan | Irbesartan | 30 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 29 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 29 | suppressed |
| Primidone | Primidone | 29 | suppressed |
| Atenolol | Atenolol | 28 | suppressed |
| Gemfibrozil | Gemfibrozil | 27 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 27 | suppressed |
| Xarelto | Rivaroxaban | 27 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 26 | 24 |
| Bupropion Xl | Bupropion Hcl | 26 | suppressed |
| Fenofibrate | Fenofibrate,micronized | 26 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 26 | suppressed |
| Spiriva Handihaler | Tiotropium Bromide | 25 | suppressed |
| Sucralfate | Sucralfate | 25 | suppressed |
| Metolazone | Metolazone | 23 | suppressed |
| Nabumetone | Nabumetone | 23 | suppressed |
| Novolog Flexpen | Insulin Aspart | 23 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 22 | suppressed |
| Insulin Lispro Kwikpen U-100 | Insulin Lispro | 22 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 22 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 22 | suppressed |
| Mirtazapine | Mirtazapine | 21 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 20 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 20 | 12 |
| Propranolol Hcl | Propranolol Hcl | 20 | suppressed |
| Solifenacin Succinate | Solifenacin Succinate | 20 | suppressed |
| Topiramate | Topiramate | 20 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 20 | suppressed |
| Ezetimibe | Ezetimibe | 18 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 17 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 17 | 13 |
| Paroxetine Hcl | Paroxetine Hcl | 17 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 17 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 17 | suppressed |
| Estradiol | Estradiol | 16 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 16 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 16 | suppressed |
| Tolterodine Tartrate | Tolterodine Tartrate | 16 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 15 | suppressed |
| Tolterodine Tartrate Er | Tolterodine Tartrate | 15 | suppressed |
| Torsemide | Torsemide | 15 | suppressed |
| Nitrofurantoin | Nitrofurantoin Macrocrystal | 14 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 13 | suppressed |
| Bydureon Bcise | Exenatide Microspheres | 13 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 13 | suppressed |
| Loperamide | Loperamide Hcl | 13 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 13 | suppressed |
| Trulicity | Dulaglutide | 13 | suppressed |
| Unifine Pentips | Pen Needle, Diabetic | 13 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 12 | suppressed |
| Dilt-Xr | Diltiazem Hcl | 12 | suppressed |
| Ezetimibe-Simvastatin | Ezetimibe/Simvastatin | 12 | suppressed |
| Fluconazole | Fluconazole | 12 | suppressed |
| Fludrocortisone Acetate | Fludrocortisone Acetate | 12 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 12 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 11 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 11 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 11 | suppressed |
| Imipramine Hcl | Imipramine Hcl | 11 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 11 | suppressed |
| Nebivolol Hcl | Nebivolol Hcl | 11 | suppressed |
| Nifedipine Er | Nifedipine | 11 | suppressed |
| Ondansetron Odt | Ondansetron | 11 | suppressed |
| Saxagliptin-Metformin Er | Saxagliptin Hcl/Metformin Hcl | 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 | — | — | — | — | — |
| 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