Healthcare provider profile · identity verified

Nicholas Michael Hajj, M.D.

Family Practice · BARRE, MA · NPI 1992168421

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 Calcium20261
LisinoprilLisinopril16756
GabapentinGabapentin16533
Oxycodone HclOxycodone Hcl16031
Amlodipine BesylateAmlodipine Besylate12640
Levothyroxine SodiumLevothyroxine Sodium11336
LorazepamLorazepam10718
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen9714
Sertraline HclSertraline Hcl8629
OmeprazoleOmeprazole8333
Tamsulosin HclTamsulosin Hcl7320
Cyclobenzaprine HclCyclobenzaprine Hcl6919
Metoprolol SuccinateMetoprolol Succinate6425
Losartan PotassiumLosartan Potassium6325
EliquisApixaban6220
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen61suppressed
Metformin HclMetformin Hcl5815
Albuterol Sulfate HfaAlbuterol Sulfate5720
IbuprofenIbuprofen5716
Pantoprazole SodiumPantoprazole Sodium5613
Bupropion Hcl SrBupropion Hcl5518
SimvastatinSimvastatin5417
ClonazepamClonazepam49suppressed
HydrochlorothiazideHydrochlorothiazide4921
FamotidineFamotidine4818
Duloxetine HclDuloxetine Hcl4614
Rosuvastatin CalciumRosuvastatin Calcium4315
Fluoxetine HclFluoxetine Hcl4211
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl4016
Ventolin HfaAlbuterol Sulfate3913
Citalopram HbrCitalopram Hydrobromide36suppressed
DiazepamDiazepam36suppressed
Fluticasone PropionateFluticasone Propionate3617
Trazodone HclTrazodone Hcl3614
Morphine Sulfate ErMorphine Sulfate35suppressed
Methadone HclMethadone Hcl34suppressed
Diclofenac SodiumDiclofenac Sodium3013
Escitalopram OxalateEscitalopram Oxalate3013
Metoprolol TartrateMetoprolol Tartrate29suppressed
MirtazapineMirtazapine26suppressed
Pravastatin SodiumPravastatin Sodium26suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
Tizanidine HclTizanidine Hcl24suppressed
Potassium ChloridePotassium Chloride23suppressed
JardianceEmpagliflozin22suppressed
MeloxicamMeloxicam22suppressed
Quetiapine FumarateQuetiapine Fumarate21suppressed
Methylphenidate HclMethylphenidate Hcl20suppressed
PregabalinPregabalin20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
Ipratropium BromideIpratropium Bromide19suppressed
TrulicityDulaglutide19suppressed
EzetimibeEzetimibe18suppressed
KetoconazoleKetoconazole1811
Montelukast SodiumMontelukast Sodium18suppressed
PrednisonePrednisone1815
Sumatriptan SuccinateSumatriptan Succinate18suppressed
BaclofenBaclofen17suppressed
Bupropion XlBupropion Hcl17suppressed
MethocarbamolMethocarbamol17suppressed
NystatinNystatin1711
AtenololAtenolol16suppressed
Breo ElliptaFluticasone/Vilanterol15suppressed
LamotrigineLamotrigine15suppressed
SucralfateSucralfate15suppressed
TopiramateTopiramate15suppressed
FurosemideFurosemide14suppressed
Glipizide ErGlipizide14suppressed
Hydralazine HclHydralazine Hcl14suppressed
OzempicSemaglutide14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
SpironolactoneSpironolactone13suppressed
AllopurinolAllopurinol12suppressed
Amitriptyline HclAmitriptyline Hcl12suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
OxycontinOxycodone Hcl12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Tramadol HclTramadol Hcl12suppressed
ValsartanValsartan12suppressed
Acetaminophen-CodeineAcetaminophen With Codeine11suppressed
Buspirone HclBuspirone Hcl11suppressed
CarvedilolCarvedilol11suppressed
Doxycycline HyclateDoxycycline Hyclate1111
Nifedipine ErNifedipine11suppressed
OxcarbazepineOxcarbazepine11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed

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