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
Richard G Mckenzie, DO
Family Practice · LITTLETON, NH · NPI 1487776449
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 | 705 | 201 |
| Lisinopril | Lisinopril | 518 | 145 |
| Amlodipine Besylate | Amlodipine Besylate | 346 | 98 |
| Levothyroxine Sodium | Levothyroxine Sodium | 345 | 100 |
| Omeprazole | Omeprazole | 334 | 100 |
| Metoprolol Succinate | Metoprolol Succinate | 313 | 86 |
| Losartan Potassium | Losartan Potassium | 283 | 78 |
| Hydrochlorothiazide | Hydrochlorothiazide | 228 | 74 |
| Metformin Hcl | Metformin Hcl | 227 | 69 |
| Pantoprazole Sodium | Pantoprazole Sodium | 190 | 61 |
| Gabapentin | Gabapentin | 180 | 53 |
| Simvastatin | Simvastatin | 169 | 55 |
| Furosemide | Furosemide | 157 | 49 |
| Eliquis | Apixaban | 147 | 31 |
| Metoprolol Tartrate | Metoprolol Tartrate | 145 | 40 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 141 | 50 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 131 | 34 |
| Potassium Chloride | Potassium Chloride | 122 | 32 |
| Tamsulosin Hcl | Tamsulosin Hcl | 120 | 39 |
| Alprazolam | Alprazolam | 119 | 21 |
| Oxycodone Hcl | Oxycodone Hcl | 118 | suppressed |
| Atenolol | Atenolol | 116 | 35 |
| Sertraline Hcl | Sertraline Hcl | 109 | 29 |
| Trazodone Hcl | Trazodone Hcl | 107 | 26 |
| Clonazepam | Clonazepam | 102 | 18 |
| Warfarin Sodium | Warfarin Sodium | 102 | 19 |
| Allopurinol | Allopurinol | 101 | 29 |
| Pravastatin Sodium | Pravastatin Sodium | 96 | 29 |
| Lorazepam | Lorazepam | 92 | 20 |
| Duloxetine Hcl | Duloxetine Hcl | 87 | 23 |
| Methylphenidate Hcl | Methylphenidate Hcl | 87 | suppressed |
| Trulicity | Dulaglutide | 80 | 14 |
| Citalopram Hbr | Citalopram Hydrobromide | 78 | 27 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 74 | 17 |
| Clopidogrel | Clopidogrel Bisulfate | 71 | 22 |
| Fluoxetine Hcl | Fluoxetine Hcl | 71 | 21 |
| Metformin Hcl Er | Metformin Hcl | 70 | 21 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 64 | 11 |
| Montelukast Sodium | Montelukast Sodium | 57 | 15 |
| Tramadol Hcl | Tramadol Hcl | 57 | 11 |
| Glipizide | Glipizide | 56 | 14 |
| Finasteride | Finasteride | 55 | 14 |
| Zolpidem Tartrate | Zolpidem Tartrate | 54 | 13 |
| Carvedilol | Carvedilol | 53 | 13 |
| Alendronate Sodium | Alendronate Sodium | 52 | 13 |
| Pregabalin | Pregabalin | 51 | 11 |
| Escitalopram Oxalate | Escitalopram Oxalate | 49 | 11 |
| Ibuprofen | Ibuprofen | 49 | 19 |
| Morphine Sulfate Er | Morphine Sulfate | 48 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 47 | 15 |
| Lovastatin | Lovastatin | 47 | 12 |
| Xarelto | Rivaroxaban | 46 | suppressed |
| Glimepiride | Glimepiride | 45 | 14 |
| Bupropion Xl | Bupropion Hcl | 44 | suppressed |
| Chlorthalidone | Chlorthalidone | 44 | suppressed |
| Celecoxib | Celecoxib | 43 | 15 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 43 | 14 |
| Ozempic | Semaglutide | 43 | suppressed |
| Glipizide Er | Glipizide | 42 | 13 |
| Famotidine | Famotidine | 41 | 12 |
| Fluticasone Propionate | Fluticasone Propionate | 40 | 17 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 39 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 35 | suppressed |
| Prednisone | Prednisone | 35 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 35 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 34 | suppressed |
| Testosterone Cypionate | Testosterone Cypionate | 34 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 34 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 33 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 33 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 31 | suppressed |
| Jardiance | Empagliflozin | 31 | suppressed |
| Meloxicam | Meloxicam | 31 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 31 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 30 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 29 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 28 | 11 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 28 | suppressed |
| Spironolactone | Spironolactone | 28 | suppressed |
| Synthroid | Levothyroxine Sodium | 28 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 28 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 27 | suppressed |
| Diazepam | Diazepam | 25 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 23 | suppressed |
| Januvia | Sitagliptin Phosphate | 23 | suppressed |
| Aripiprazole | Aripiprazole | 22 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 22 | suppressed |
| Temazepam | Temazepam | 22 | suppressed |
| Ezetimibe | Ezetimibe | 21 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 21 | suppressed |
| Lamotrigine | Lamotrigine | 21 | suppressed |
| Methadone Hcl | Methadone Hcl | 21 | suppressed |
| Novolog Flexpen | Insulin Aspart | 21 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 20 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 20 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 20 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 19 | 11 |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 19 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 19 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 18 | suppressed |
| Baclofen | Baclofen | 18 | suppressed |
| Divalproex Sodium | Divalproex Sodium | 18 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 18 | suppressed |
| Olanzapine | Olanzapine | 18 | suppressed |
| Spiriva Respimat | Tiotropium Bromide | 18 | suppressed |
| Verapamil Er | Verapamil Hcl | 18 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 17 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 17 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 16 | suppressed |
| Memantine Hcl | Memantine Hcl | 16 | suppressed |
| Nystatin | Nystatin | 16 | suppressed |
| Risperidone | Risperidone | 16 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 16 | suppressed |
| Acyclovir | Acyclovir | 15 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 15 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 15 | suppressed |
| Vascepa | Icosapent Ethyl | 15 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 14 | suppressed |
| Cartia Xt | Diltiazem Hcl | 14 | suppressed |
| Diltiazem 12hr Er | Diltiazem Hcl | 14 | suppressed |
| Nitroglycerin | Nitroglycerin | 14 | 11 |
| Boostrix Tdap | Diphth,pertuss(Acell),tet Vac | 13 | 13 |
| Farxiga | Dapagliflozin Propanediol | 13 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 13 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 13 | suppressed |
| Torsemide | Torsemide | 13 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 13 | suppressed |
| Valsartan | Valsartan | 13 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 12 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 12 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 12 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 12 | suppressed |
| Fenofibrate | Fenofibrate | 12 | suppressed |
| Lactulose | Lactulose | 12 | suppressed |
| Lyrica | Pregabalin | 12 | suppressed |
| Methylphenidate Er | Methylphenidate Hcl | 12 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 12 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 12 | suppressed |
| Qvar Redihaler | Beclomethasone Dipropionate | 12 | suppressed |
| Advair Hfa | Fluticasone Propion/Salmeterol | 11 | suppressed |
| Clonidine | Clonidine | 11 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 11 | suppressed |
| Metolazone | Metolazone | 11 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 11 | suppressed |
| Ultra-Fine Mini Pen Needle | Pen Needle, Diabetic | 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