Healthcare provider profile · identity verified

Daniel O'Leary, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · LEOMINSTER, MA · NPI 1447346531

Profile state: payments and partd 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

CMS Open Payments records show Daniel O'Leary, M.D. received $51.30 in general payments during 2025 across 2 reported records.

Novo Nordisk Inc accounted for 58.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Trelegy Ellipta.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Trelegy Ellipta by this doctor in 2024.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Ozempic by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$51.30

2 reported records · 2 companies

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 companyCanonical companyAmountShareRecordsYear
Novo Nordisk Inc Unresolved — no canonical attribution shown $29.9258.3%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $21.3841.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$51.302

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 productTypeReported companyRelated amount*RecordsYear
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $29.92 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $21.38 1 2025
Source payment records

* 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
28 11

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 Calcium954268
Amlodipine BesylateAmlodipine Besylate794223
LisinoprilLisinopril762218
Losartan PotassiumLosartan Potassium761203
Levothyroxine SodiumLevothyroxine Sodium759200
SimvastatinSimvastatin540148
OmeprazoleOmeprazole501159
HydrochlorothiazideHydrochlorothiazide469137
Rosuvastatin CalciumRosuvastatin Calcium377110
GabapentinGabapentin367111
Tamsulosin HclTamsulosin Hcl358101
Metoprolol SuccinateMetoprolol Succinate353102
EliquisApixaban34874
Escitalopram OxalateEscitalopram Oxalate27988
Sertraline HclSertraline Hcl27381
AllopurinolAllopurinol26471
LorazepamLorazepam25873
AlprazolamAlprazolam23248
FurosemideFurosemide22761
PrednisonePrednisone222139
Metformin Hcl ErMetformin Hcl21864
Trazodone HclTrazodone Hcl20765
Tramadol HclTramadol Hcl18349
Metoprolol TartrateMetoprolol Tartrate17546
Albuterol Sulfate HfaAlbuterol Sulfate15954
AtenololAtenolol15842
Citalopram HbrCitalopram Hydrobromide15841
Pantoprazole SodiumPantoprazole Sodium14943
AzithromycinAzithromycin143109
Metformin HclMetformin Hcl13043
JardianceEmpagliflozin11336
SpironolactoneSpironolactone10430
Cyclobenzaprine HclCyclobenzaprine Hcl9841
FinasterideFinasteride9827
Montelukast SodiumMontelukast Sodium9425
Olmesartan MedoxomilOlmesartan Medoxomil9424
Fluoxetine HclFluoxetine Hcl9222
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide9227
Alendronate SodiumAlendronate Sodium9124
Wixela InhubFluticasone Propion/Salmeterol9019
Duloxetine HclDuloxetine Hcl8927
Zolpidem TartrateZolpidem Tartrate8615
LovastatinLovastatin8527
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8428
ClonazepamClonazepam8018
Bupropion XlBupropion Hcl7920
IbuprofenIbuprofen7721
Pravastatin SodiumPravastatin Sodium7722
Potassium ChloridePotassium Chloride7528
Fluticasone PropionateFluticasone Propionate7133
GlimepirideGlimepiride6818
Warfarin SodiumWarfarin Sodium6819
Oxybutynin Chloride ErOxybutynin Chloride6412
CephalexinCephalexin6342
Oxycodone HclOxycodone Hcl6121
Paroxetine HclParoxetine Hcl6115
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim6050
TrulicityDulaglutide6013
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5715
Amitriptyline HclAmitriptyline Hcl5613
SynthroidLevothyroxine Sodium5516
MirtazapineMirtazapine5314
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5314
XareltoRivaroxaban5311
Donepezil HclDonepezil Hcl5212
BenzonatateBenzonatate5135
Doxycycline HyclateDoxycycline Hyclate5144
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav5044
ClopidogrelClopidogrel Bisulfate4715
NystatinNystatin4725
Colestipol HclColestipol Hcl4414
CarvedilolCarvedilol4314
DiazepamDiazepam43suppressed
KetoconazoleKetoconazole4318
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate41suppressed
Klor-Con M20Potassium Chloride3913
Propranolol HclPropranolol Hcl38suppressed
FamotidineFamotidine37suppressed
Meclizine HclMeclizine Hcl3715
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3725
Ultra-Fine Short Pen NeedlePen Needle, Diabetic37suppressed
PregabalinPregabalin3511
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen34suppressed
ValacyclovirValacyclovir Hcl3426
Venlafaxine Hcl ErVenlafaxine Hcl34suppressed
BaclofenBaclofen31suppressed
Labetalol HclLabetalol Hcl31suppressed
ValsartanValsartan29suppressed
Ciprofloxacin HclCiprofloxacin Hcl2822
Diltiazem 24hr Er (Cd)Diltiazem Hcl28suppressed
FentanylFentanyl28suppressed
GlipizideGlipizide28suppressed
OzempicSemaglutide2811
PaxlovidNirmatrelvir/Ritonavir2828
Sildenafil CitrateSildenafil Citrate28suppressed
Breo ElliptaFluticasone/Vilanterol27suppressed
Doxazosin MesylateDoxazosin Mesylate27suppressed
Oxybutynin ChlorideOxybutynin Chloride27suppressed
MeloxicamMeloxicam26suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter26suppressed
CelecoxibCelecoxib25suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2512
Clonidine HclClonidine Hcl24suppressed
Diclofenac SodiumDiclofenac Sodium2412
Isosorbide Mononitrate ErIsosorbide Mononitrate24suppressed
Ventolin HfaAlbuterol Sulfate24suppressed
Buspirone HclBuspirone Hcl23suppressed
Doxycycline MonohydrateDoxycycline Monohydrate22suppressed
Tresiba Flextouch U-100Insulin Degludec21suppressed
NaproxenNaproxen19suppressed
Betamethasone DipropionateBetamethasone Dipropionate1811
Hydroxychloroquine SulfateHydroxychloroquine Sulfate18suppressed
Ropinirole HclRopinirole Hcl18suppressed
Terazosin HclTerazosin Hcl18suppressed
ChlorthalidoneChlorthalidone17suppressed
EpinephrineEpinephrine1712
Esomeprazole MagnesiumEsomeprazole Magnesium17suppressed
OlanzapineOlanzapine17suppressed
Quetiapine FumarateQuetiapine Fumarate17suppressed
TopiramateTopiramate17suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
Memantine HclMemantine Hcl16suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
Niacin ErNiacin16suppressed
Raloxifene HclRaloxifene Hcl16suppressed
Folic AcidFolic Acid15suppressed
LidocaineLidocaine15suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
TorsemideTorsemide14suppressed
Zolpidem Tartrate ErZolpidem Tartrate14suppressed
Diclofenac Sodium ErDiclofenac Sodium13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Minocycline HclMinocycline Hcl13suppressed
OxycontinOxycodone Hcl13suppressed
Verapamil ErVerapamil Hcl13suppressed
JanuviaSitagliptin Phosphate12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Oseltamivir PhosphateOseltamivir Phosphate1212
Propranolol Hcl ErPropranolol Hcl12suppressed
AmoxicillinAmoxicillin11suppressed
ColchicineColchicine11suppressed
Hydralazine HclHydralazine Hcl11suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed
Trospium ChlorideTrospium Chloride11suppressed

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 $51.30 · 2 records Novo Nordisk Inc TRELEGY ELLIPTA, Wegovy 2
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