Healthcare provider profile · identity verified

James M Mason, MD

Internal Medicine · FAIRPORT, NY · NPI 1346277050

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

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.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium499153
Levothyroxine SodiumLevothyroxine Sodium489128
LisinoprilLisinopril368100
MeloxicamMeloxicam30789
Amlodipine BesylateAmlodipine Besylate28586
Tamsulosin HclTamsulosin Hcl26575
Metoprolol SuccinateMetoprolol Succinate25968
Pantoprazole SodiumPantoprazole Sodium25684
Sertraline HclSertraline Hcl24263
SimvastatinSimvastatin22563
HydrochlorothiazideHydrochlorothiazide19554
OmeprazoleOmeprazole18958
GabapentinGabapentin14337
OzempicSemaglutide12623
Zolpidem TartrateZolpidem Tartrate12622
IrbesartanIrbesartan12434
AzithromycinAzithromycin11889
Rosuvastatin CalciumRosuvastatin Calcium9134
DutasterideDutasteride8918
Fluticasone-SalmeterolFluticasone Propion/Salmeterol8822
FurosemideFurosemide8727
Metoprolol TartrateMetoprolol Tartrate8622
Trazodone HclTrazodone Hcl8624
PrednisonePrednisone8133
Losartan PotassiumLosartan Potassium7826
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril7722
Metformin HclMetformin Hcl7724
AlprazolamAlprazolam7623
Metformin Hcl ErMetformin Hcl7323
Fluticasone PropionateFluticasone Propionate7225
EliquisApixaban6521
Duloxetine HclDuloxetine Hcl6416
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6017
MethylprednisoloneMethylprednisolone6051
AllopurinolAllopurinol5715
Citalopram HbrCitalopram Hydrobromide5716
Cyclobenzaprine HclCyclobenzaprine Hcl5621
Venlafaxine Hcl ErVenlafaxine Hcl5312
Pravastatin SodiumPravastatin Sodium5215
Fluoxetine HclFluoxetine Hcl5014
Warfarin SodiumWarfarin Sodium5013
AtenololAtenolol4814
Bupropion XlBupropion Hcl4815
FamotidineFamotidine4816
Oxycodone HclOxycodone Hcl46suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4422
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4334
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4311
Escitalopram OxalateEscitalopram Oxalate4214
Tramadol HclTramadol Hcl4016
FenofibrateFenofibrate39suppressed
Benazepril HclBenazepril Hcl3811
EzetimibeEzetimibe36suppressed
Betamethasone ValerateBetamethasone Valerate3416
CelecoxibCelecoxib3411
ClopidogrelClopidogrel Bisulfate34suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3213
TorsemideTorsemide3112
Donepezil HclDonepezil Hcl3015
TrulicityDulaglutide30suppressed
Glipizide ErGlipizide29suppressed
LorazepamLorazepam29suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac2828
Paroxetine HclParoxetine Hcl28suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2821
Lantus SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
DiazepamDiazepam2512
FenofibrateFenofibrate Nanocrystallized25suppressed
ValsartanValsartan25suppressed
Alendronate SodiumAlendronate Sodium24suppressed
Doxycycline HyclateDoxycycline Hyclate2416
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2419
LovastatinLovastatin23suppressed
Solifenacin SuccinateSolifenacin Succinate2311
Propranolol HclPropranolol Hcl22suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid22suppressed
Mometasone FuroateMometasone Furoate21suppressed
SynthroidLevothyroxine Sodium21suppressed
ArexvyRsvpref3 Antigen/As01e/Pf2020
Labetalol HclLabetalol Hcl20suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride20suppressed
Butalbital-Aspirin-CaffeineButalbital/Aspirin/Caffeine19suppressed
ChlorthalidoneChlorthalidone19suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl19suppressed
LevofloxacinLevofloxacin1918
PregabalinPregabalin19suppressed
GlimepirideGlimepiride18suppressed
CarvedilolCarvedilol17suppressed
JardianceEmpagliflozin17suppressed
AmoxicillinAmoxicillin16suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip16suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine16suppressed
EstradiolEstradiol16suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide16suppressed
JanuviaSitagliptin Phosphate16suppressed
Pioglitazone HclPioglitazone Hcl16suppressed
Propranolol Hcl ErPropranolol Hcl16suppressed
Buspirone HclBuspirone Hcl15suppressed
CephalexinCephalexin1514
Ciprofloxacin HclCiprofloxacin Hcl1514
Diclofenac SodiumDiclofenac Sodium15suppressed
Morphine Sulfate ErMorphine Sulfate15suppressed
Ondansetron HclOndansetron Hcl14suppressed
OxycontinOxycodone Hcl14suppressed
TopiramateTopiramate14suppressed
Clindamycin HclClindamycin Hcl13suppressed
ClonazepamClonazepam13suppressed
FinasterideFinasteride13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
Amiodarone HclAmiodarone Hcl12suppressed
Lagevrio (Eua)Molnupiravir1212
Quetiapine FumarateQuetiapine Fumarate12suppressed
Qvar RedihalerBeclomethasone Dipropionate12suppressed
Tobramycin-DexamethasoneTobramycin/Dexamethasone12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
ColchicineColchicine11suppressed
Hydralazine HclHydralazine Hcl11suppressed
LatanoprostLatanoprost11suppressed
RamiprilRamipril11suppressed
Ranolazine ErRanolazine11suppressed
Testosterone CypionateTestosterone Cypionate11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error