Healthcare provider profile · identity verified

John Gerard Obrien, MD

Family Practice · LIVERPOOL, NY · NPI 1467527655

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 Calcium388117
LisinoprilLisinopril375109
Levothyroxine SodiumLevothyroxine Sodium33186
Amlodipine BesylateAmlodipine Besylate19863
OmeprazoleOmeprazole18454
SimvastatinSimvastatin16750
Metformin HclMetformin Hcl13846
Losartan PotassiumLosartan Potassium12237
Metoprolol SuccinateMetoprolol Succinate9830
HydrochlorothiazideHydrochlorothiazide9330
Sertraline HclSertraline Hcl8829
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8122
LovastatinLovastatin8122
AllopurinolAllopurinol6921
FenofibrateFenofibrate Nanocrystallized6720
Rosuvastatin CalciumRosuvastatin Calcium6725
Paroxetine HclParoxetine Hcl6018
AlprazolamAlprazolam5127
Albuterol Sulfate HfaAlbuterol Sulfate5016
FamotidineFamotidine4614
Fluoxetine HclFluoxetine Hcl4313
GabapentinGabapentin4112
Doxycycline HyclateDoxycycline Hyclate3934
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3911
FurosemideFurosemide3714
Montelukast SodiumMontelukast Sodium36suppressed
MeloxicamMeloxicam3512
GlipizideGlipizide34suppressed
OzempicSemaglutide32suppressed
Pravastatin SodiumPravastatin Sodium3211
SynthroidLevothyroxine Sodium3111
Tamsulosin HclTamsulosin Hcl3112
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3030
JardianceEmpagliflozin29suppressed
Pantoprazole SodiumPantoprazole Sodium2914
EliquisApixaban28suppressed
Trazodone HclTrazodone Hcl28suppressed
Buspirone HclBuspirone Hcl26suppressed
EzetimibeEzetimibe26suppressed
Metoprolol TartrateMetoprolol Tartrate26suppressed
ClopidogrelClopidogrel Bisulfate25suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol24suppressed
Potassium ChloridePotassium Chloride23suppressed
Glipizide ErGlipizide22suppressed
AtenololAtenolol21suppressed
RamiprilRamipril21suppressed
Fluticasone PropionateFluticasone Propionate2011
Propranolol Hcl ErPropranolol Hcl19suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1813
RisperidoneRisperidone18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
Ciprofloxacin HclCiprofloxacin Hcl1717
Duloxetine HclDuloxetine Hcl17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide17suppressed
Warfarin SodiumWarfarin Sodium17suppressed
IbuIbuprofen15suppressed
Ropinirole HclRopinirole Hcl15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Imipramine HclImipramine Hcl14suppressed
IrbesartanIrbesartan14suppressed
SpironolactoneSpironolactone14suppressed
Metformin Hcl ErMetformin Hcl13suppressed
NystatinNystatin13suppressed
DiazepamDiazepam12suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium12suppressed
LansoprazoleLansoprazole12suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12suppressed
Amitriptyline HclAmitriptyline Hcl11suppressed
AmoxicillinAmoxicillin11suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate11suppressed
FenofibrateFenofibrate11suppressed
JanuviaSitagliptin Phosphate11suppressed
Pen NeedlePen Needle, Diabetic11suppressed
Serevent DiskusSalmeterol Xinafoate11suppressed
Tizanidine HclTizanidine Hcl11suppressed
Tramadol HclTramadol Hcl11suppressed

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