Healthcare provider profile · identity verified

Oliver B Diaz, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · BRISTOL, CT · NPI 1124037312

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 Oliver B Diaz, M.D. received $227.21 in general payments during 2025 across 2 reported records.

Lilly USA, LLC accounted for 54.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 146 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 146 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Trulicity by this doctor in 2024.

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

Payment overview · 2025

General Payments

$227.21

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
Lilly USA, LLC Unresolved — no canonical attribution shown $123.0654.2%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $104.1545.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$227.212

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
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $227.21 2 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
JARDIANCE
jardiance
2025 Jardiance 2024 146 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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
146 30
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
146 30
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS

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
Amlodipine BesylateAmlodipine Besylate431106
Levothyroxine SodiumLevothyroxine Sodium39296
Metoprolol SuccinateMetoprolol Succinate32276
Atorvastatin CalciumAtorvastatin Calcium28669
Metformin HclMetformin Hcl25866
GabapentinGabapentin25147
Rosuvastatin CalciumRosuvastatin Calcium25177
AlprazolamAlprazolam24743
OmeprazoleOmeprazole23950
XareltoRivaroxaban20040
LisinoprilLisinopril19843
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide17649
FurosemideFurosemide17442
SpironolactoneSpironolactone15236
Tramadol HclTramadol Hcl14725
JardianceEmpagliflozin14630
Albuterol Sulfate HfaAlbuterol Sulfate14533
JanuviaSitagliptin Phosphate14526
Montelukast SodiumMontelukast Sodium14329
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14116
BaclofenBaclofen13730
Trazodone HclTrazodone Hcl13727
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide13431
Pravastatin SodiumPravastatin Sodium13231
GlipizideGlipizide13127
LovastatinLovastatin13034
Escitalopram OxalateEscitalopram Oxalate12629
EliquisApixaban12529
TorsemideTorsemide12235
DigoxinDigoxin11929
Losartan PotassiumLosartan Potassium11726
Pantoprazole SodiumPantoprazole Sodium11435
CarvedilolCarvedilol11226
Zolpidem TartrateZolpidem Tartrate11117
FarxigaDapagliflozin Propanediol10625
Oxycodone HclOxycodone Hcl102suppressed
AllopurinolAllopurinol10126
Potassium ChloridePotassium Chloride10127
LorazepamLorazepam9123
Labetalol HclLabetalol Hcl9018
Tamsulosin HclTamsulosin Hcl9025
ClopidogrelClopidogrel Bisulfate7817
Meclizine HclMeclizine Hcl7721
PrednisonePrednisone7534
Metoprolol TartrateMetoprolol Tartrate7113
MeloxicamMeloxicam6618
Alendronate SodiumAlendronate Sodium6516
Memantine HclMemantine Hcl6512
Nebivolol HclNebivolol Hcl6513
Warfarin SodiumWarfarin Sodium61suppressed
EzetimibeEzetimibe5915
Oxybutynin ChlorideOxybutynin Chloride59suppressed
SynthroidLevothyroxine Sodium5712
IrbesartanIrbesartan5612
Ondansetron HclOndansetron Hcl5517
SimvastatinSimvastatin5514
Amiodarone HclAmiodarone Hcl5317
EntrestoSacubitril/Valsartan53suppressed
PregabalinPregabalin53suppressed
Propranolol HclPropranolol Hcl51suppressed
Glipizide ErGlipizide5014
IndapamideIndapamide5014
Solifenacin SuccinateSolifenacin Succinate47suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide45suppressed
CephalexinCephalexin4427
HydrochlorothiazideHydrochlorothiazide44suppressed
Midodrine HclMidodrine Hcl43suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium4111
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3911
Diltiazem 24hr Er (Cd)Diltiazem Hcl38suppressed
Azelastine HclAzelastine Hcl37suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate3712
FenofibrateFenofibrate Nanocrystallized34suppressed
CelecoxibCelecoxib33suppressed
SymbicortBudesonide/Formoterol Fumarate33suppressed
Amitriptyline HclAmitriptyline Hcl32suppressed
AzithromycinAzithromycin3129
Fluticasone PropionateFluticasone Propionate31suppressed
MirtazapineMirtazapine29suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl28suppressed
DiazepamDiazepam28suppressed
Quetiapine FumarateQuetiapine Fumarate28suppressed
Sertraline HclSertraline Hcl28suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2713
DesoximetasoneDesoximetasone2712
LinzessLinaclotide27suppressed
TrulicityDulaglutide27suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters26suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine25suppressed
LevetiracetamLevetiracetam25suppressed
MethylprednisoloneMethylprednisolone2522
TemazepamTemazepam25suppressed
ClonazepamClonazepam24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Metformin Hcl ErMetformin Hcl23suppressed
Olmesartan MedoxomilOlmesartan Medoxomil23suppressed
Butalb-Acetaminoph-Caff-CodeinButalbit/Acetamin/Caff/Codeine21suppressed
Spiriva RespimatTiotropium Bromide21suppressed
VraylarCariprazine Hcl21suppressed
Breo ElliptaFluticasone/Vilanterol20suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Dicyclomine HclDicyclomine Hcl20suppressed
Doxycycline HyclateDoxycycline Hyclate20suppressed
Flecainide AcetateFlecainide Acetate20suppressed
Duloxetine HclDuloxetine Hcl19suppressed
Theophylline ErTheophylline Anhydrous19suppressed
FinasterideFinasteride18suppressed
GlimepirideGlimepiride18suppressed
Ipratropium BromideIpratropium Bromide18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1714
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen17suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter17suppressed
FenofibrateFenofibrate16suppressed
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro16suppressed
Humulin 70/30 KwikpenInsulin Nph Hum/Reg Insulin Hm16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
LamotrigineLamotrigine16suppressed
PrimidonePrimidone16suppressed
Paroxetine HclParoxetine Hcl15suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
Tizanidine HclTizanidine Hcl15suppressed
Clonidine HclClonidine Hcl14suppressed
ColchicineColchicine14suppressed
GemfibrozilGemfibrozil14suppressed
Nifedipine ErNifedipine14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Ultra-Fine Original Pen NeedlePen Needle, Diabetic14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
Bupropion XlBupropion Hcl13suppressed
Donepezil HclDonepezil Hcl13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
AnastrozoleAnastrozole12suppressed
Cinacalcet HclCinacalcet Hcl12suppressed
Clorazepate DipotassiumClorazepate Dipotassium12suppressed
IbuprofenIbuprofen12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
SunosiSolriamfetol Hcl12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate11suppressed
ChlorthalidoneChlorthalidone11suppressed
DexamethasoneDexamethasone11suppressed
Diclofenac PotassiumDiclofenac Potassium11suppressed
Diltiazem 24hr ErDiltiazem Hcl11suppressed
NitroglycerinNitroglycerin11suppressed
Propafenone HclPropafenone Hcl11suppressed
Risedronate SodiumRisedronate Sodium11suppressed
SeglentisTramadol Hcl/Celecoxib11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed
VascepaIcosapent Ethyl11suppressed

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 $227.21 · 2 records Lilly USA, LLC JARDIANCE 3
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