Healthcare provider profile · identity verified

Jason G. Barrera, MD, PHD

Internal Medicine · BOSTON, MA · NPI 1770879231

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 Calcium32589
Amlodipine BesylateAmlodipine Besylate18755
OmeprazoleOmeprazole17250
Rosuvastatin CalciumRosuvastatin Calcium15851
LisinoprilLisinopril13939
Metoprolol SuccinateMetoprolol Succinate10730
EliquisApixaban9421
Tamsulosin HclTamsulosin Hcl7623
ValsartanValsartan7522
HydrochlorothiazideHydrochlorothiazide7223
Losartan PotassiumLosartan Potassium7017
Levothyroxine SodiumLevothyroxine Sodium6021
LorazepamLorazepam5918
Oxycodone HclOxycodone Hcl5914
GabapentinGabapentin5515
TrulicityDulaglutide52suppressed
FinasterideFinasteride4712
Escitalopram OxalateEscitalopram Oxalate4411
AllopurinolAllopurinol4313
Trazodone HclTrazodone Hcl39suppressed
EzetimibeEzetimibe3511
Pantoprazole SodiumPantoprazole Sodium34suppressed
FurosemideFurosemide32suppressed
JardianceEmpagliflozin32suppressed
Metformin HclMetformin Hcl3211
Fluticasone PropionateFluticasone Propionate3114
Sertraline HclSertraline Hcl31suppressed
CarvedilolCarvedilol3011
Metformin Hcl ErMetformin Hcl3013
AtenololAtenolol29suppressed
ClonazepamClonazepam26suppressed
SimvastatinSimvastatin26suppressed
Zolpidem TartrateZolpidem Tartrate26suppressed
Albuterol Sulfate HfaAlbuterol Sulfate24suppressed
GlimepirideGlimepiride24suppressed
Quetiapine FumarateQuetiapine Fumarate24suppressed
ClopidogrelClopidogrel Bisulfate23suppressed
Bupropion XlBupropion Hcl22suppressed
Nifedipine ErNifedipine22suppressed
Sildenafil CitrateSildenafil Citrate22suppressed
AlprazolamAlprazolam21suppressed
PrednisonePrednisone21suppressed
Duloxetine HclDuloxetine Hcl20suppressed
IrbesartanIrbesartan20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
Olmesartan MedoxomilOlmesartan Medoxomil20suppressed
ValacyclovirValacyclovir Hcl20suppressed
Alfuzosin Hcl ErAlfuzosin Hcl19suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
FamotidineFamotidine18suppressed
MirtazapineMirtazapine18suppressed
MounjaroTirzepatide18suppressed
OzempicSemaglutide18suppressed
TorsemideTorsemide18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
ChlorthalidoneChlorthalidone17suppressed
Humulin NInsulin Nph Human Isophane16suppressed
Potassium ChloridePotassium Chloride16suppressed
Tizanidine HclTizanidine Hcl16suppressed
LidocaineLidocaine15suppressed
Ventolin HfaAlbuterol Sulfate15suppressed
DescovyEmtricitabine/Tenofov Alafenam13suppressed
PregabalinPregabalin13suppressed
Ranolazine ErRanolazine13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
Tramadol HclTramadol Hcl13suppressed
Trospium Chloride ErTrospium Chloride13suppressed
Diclofenac SodiumDiclofenac Sodium12suppressed
GlipizideGlipizide12suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate12suppressed
VascepaIcosapent Ethyl12suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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