Payment overview · 2025
General Payments
$142.04
6 reported records · 5 companies
Healthcare provider profile · identity verified
Rex L Mahnensmith, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · WATERBURY, CT · NPI 1760466528
Verified facts
What the public records show
CMS Open Payments records show Rex L Mahnensmith, M.D. received $142.04 in general payments during 2025 across 6 reported records.
AstraZeneca Pharmaceuticals LP accounted for 21.9% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 6 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 |
|---|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $31.08 | 21.9% | 2 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $30.00 | 21.1% | 1 | 2025 |
| Calliditas Therapeutics US Inc. | Unresolved — no canonical attribution shown | $29.81 | 21.0% | 1 | 2025 |
| Exact Sciences Corporation | Unresolved — no canonical attribution shown | $29.62 | 20.9% | 1 | 2025 |
| Indivior Inc. | Unresolved — no canonical attribution shown | $21.53 | 15.2% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $142.04 | 6 |
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 |
|---|---|---|---|---|---|
| TAVNEOS Normalized: tavneos |
Drug | Amgen Inc. | $30.00 | 1 | 2025 |
Source payment records
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| TARPEYO Normalized: tarpeyo |
Drug | Calliditas Therapeutics US Inc. | $29.81 | 1 | 2025 |
Source payment records
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| The Cologuard Plus Collection Kit Normalized: the cologuard plus collection kit |
Device | Exact Sciences Corporation | $29.62 | 1 | 2025 |
Source payment records
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| SUBLOCADE Normalized: sublocade |
Drug | Indivior Inc. | $21.53 | 1 | 2025 |
Source payment records
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| BREZTRI Normalized: breztri |
Drug | AstraZeneca Pharmaceuticals LP | $17.62 | 1 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $13.46 | 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.
No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.
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 |
|---|---|---|---|
| Albuterol Sulfate Hfa | Albuterol Sulfate | 86 | 26 |
| Amlodipine Besylate | Amlodipine Besylate | 84 | 21 |
| Prednisone | Prednisone | 82 | 40 |
| Atorvastatin Calcium | Atorvastatin Calcium | 71 | 17 |
| Diclofenac Sodium | Diclofenac Sodium | 63 | 16 |
| Gabapentin | Gabapentin | 62 | 26 |
| Meloxicam | Meloxicam | 59 | 17 |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 48 | 23 |
| Buspirone Hcl | Buspirone Hcl | 42 | suppressed |
| Levothyroxine Sodium | Levothyroxine Sodium | 42 | 14 |
| Omeprazole | Omeprazole | 41 | suppressed |
| Diazepam | Diazepam | 40 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 40 | suppressed |
| Atenolol | Atenolol | 36 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 36 | 15 |
| Azithromycin | Azithromycin | 36 | 30 |
| Duloxetine Hcl | Duloxetine Hcl | 35 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 35 | 13 |
| Lisinopril | Lisinopril | 34 | 12 |
| Montelukast Sodium | Montelukast Sodium | 32 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 32 | 12 |
| Januvia | Sitagliptin Phosphate | 31 | suppressed |
| Metformin Hcl | Metformin Hcl | 31 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 30 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 28 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 27 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 27 | suppressed |
| Alprazolam | Alprazolam | 26 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 26 | suppressed |
| Losartan Potassium | Losartan Potassium | 26 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 26 | suppressed |
| Atrovent Hfa | Ipratropium Bromide | 25 | suppressed |
| Ibuprofen | Ibuprofen | 25 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 24 | suppressed |
| Tamsulosin Hcl | Tamsulosin Hcl | 24 | suppressed |
| Fluconazole | Fluconazole | 22 | suppressed |
| Spironolactone | Spironolactone | 22 | suppressed |
| Metoprolol Succinate | Metoprolol Succinate | 21 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 20 | 20 |
| Cefdinir | Cefdinir | 20 | 12 |
| Colchicine | Colchicine | 20 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 20 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 20 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 20 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 19 | suppressed |
| Bupropion Xl | Bupropion Hcl | 18 | suppressed |
| Famotidine | Famotidine | 18 | suppressed |
| Rexulti | Brexpiprazole | 18 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 18 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 17 | suppressed |
| Potassium Citrate Er | Potassium Citrate | 17 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 17 | 14 |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 16 | suppressed |
| Amlodipine-Valsartan | Amlodipine Besylate/Valsartan | 16 | suppressed |
| Celecoxib | Celecoxib | 16 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 16 | suppressed |
| Cyproheptadine Hcl | Cyproheptadine Hcl | 15 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 15 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 15 | suppressed |
| Pentoxifylline | Pentoxifylline | 15 | suppressed |
| Spiriva Handihaler | Tiotropium Bromide | 15 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 15 | 11 |
| Cefuroxime | Cefuroxime Axetil | 14 | 13 |
| Citalopram Hbr | Citalopram Hydrobromide | 14 | suppressed |
| Clotrimazole-Betamethasone | Clotrimazole/Betamethasone Dip | 14 | suppressed |
| Imipramine Hcl | Imipramine Hcl | 14 | suppressed |
| Megestrol Acetate | Megestrol Acetate | 14 | suppressed |
| Pantoprazole Sodium | Pantoprazole Sodium | 14 | suppressed |
| Advair Hfa | Fluticasone Propion/Salmeterol | 13 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 13 | suppressed |
| Naproxen | Naproxen | 13 | suppressed |
| Olmesartan-Amlodipine-Hctz | Olmesartan/Amlodipin/Hcthiazid | 13 | suppressed |
| Theophylline Er | Theophylline Anhydrous | 13 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 13 | suppressed |
| Dexamethasone | Dexamethasone | 12 | suppressed |
| Mupirocin | Mupirocin | 12 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 12 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 12 | suppressed |
| Allopurinol | Allopurinol | 11 | suppressed |
| Aripiprazole | Aripiprazole | 11 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 11 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 11 | suppressed |
| Janumet Xr | Sitagliptin Phos/Metformin Hcl | 11 | suppressed |
| Methotrexate | Methotrexate Sodium | 11 | suppressed |
| Sucralfate | Sucralfate | 11 | suppressed |
| Temazepam | Temazepam | 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 | $142.04 · 6 records | AstraZeneca Pharmaceuticals LP | AIRSUPRA, BREZTRI, SUBLOCADE, TARPEYO, TAVNEOS, The Cologuard Plus Collection Kit | — | — |
| 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