Healthcare provider profile · identity verified

Thomas Merrill, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · NORMAN, OK · NPI 1760474605

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 Thomas Merrill, M.D. received $293.21 in general payments during 2025 across 16 reported records.

PFIZER INC. accounted for 25.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 19 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Gemtesa, 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 133 claims for Jardiance by this doctor in 2024.

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 93 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 98 claims for Ozempic by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 584 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Paxlovid by this doctor in 2024.

Sumitomo Pharma America, 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 GEMTESA as an associated drug or biological on 61692 records involving 22152 distinct recipient NPIs. Public Medicare Part D data also shows 155 claims for Gemtesa by this doctor in 2024.

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

Payment overview · 2025

General Payments

$293.21

16 reported records · 11 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
PFIZER INC. Unresolved — no canonical attribution shown $74.9425.6%42025
Almatica Pharma LLC Unresolved — no canonical attribution shown $45.5715.5%22025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $36.0712.3%22025
Boston Scientific Corporation Unresolved — no canonical attribution shown $25.308.6%12025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $23.688.1%12025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $15.485.3%12025
Amgen Inc. Unresolved — no canonical attribution shown $14.965.1%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $14.695.0%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.354.9%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.144.8%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $14.034.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$293.2116

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
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $56.61 3 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $56.61 3 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $56.61 3 2025
Source payment records
TERIPARATIDE
Normalized: teriparatide
Drug Almatica Pharma LLC $45.57 2 2025
Source payment records
BEYFORTUS
Normalized: beyfortus
Biological SANOFI PASTEUR INC. $36.07 2 2025
Source payment records
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE
Normalized: flublok quadrivalent northern hemisphere
Biological SANOFI PASTEUR INC. $36.07 2 2025
Source payment records
MENQUADFI
Normalized: menquadfi
Biological SANOFI PASTEUR INC. $36.07 2 2025
Source payment records
WATCHMAN Access System
Normalized: watchman access system
Device Boston Scientific Corporation $25.30 1 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $23.68 1 2025
Source payment records
FLUZONE HIGH-DOSE
Normalized: fluzone high dose
Biological SANOFI PASTEUR INC. $18.46 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $18.33 1 2025
Source payment records
UNITHROID
Normalized: unithroid
Drug Amneal Pharmaceuticals LLC $15.48 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $14.96 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $14.96 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $14.69 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $14.35 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $14.14 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $14.14 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $14.03 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
ELIQUIS
eliquis
2025 Eliquis 2024 584 exact normalized Medicare Part D
GEMTESA
gemtesa
2025 Gemtesa 2024 155 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 133 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
133 30
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
93 19
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
98 24
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
584 85
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
28 28
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 GEMTESA
open payments reported associated product
CMS Open Payments — General Payments
61692 supporting records · 22152 recipient NPIs · example record 1176593503
Gemtesa · 2024
Exact normalized brand match · 1 Part D row
155 14

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 Calcium1105281
Levothyroxine SodiumLevothyroxine Sodium797193
Amlodipine BesylateAmlodipine Besylate613164
EliquisApixaban58485
LisinoprilLisinopril554154
OmeprazoleOmeprazole525139
Pantoprazole SodiumPantoprazole Sodium444114
Potassium ChloridePotassium Chloride40398
GabapentinGabapentin39890
Losartan PotassiumLosartan Potassium39897
Metoprolol SuccinateMetoprolol Succinate395103
FurosemideFurosemide34897
Rosuvastatin CalciumRosuvastatin Calcium30886
Metoprolol TartrateMetoprolol Tartrate27262
Tamsulosin HclTamsulosin Hcl27268
HydrochlorothiazideHydrochlorothiazide26671
ClopidogrelClopidogrel Bisulfate25070
Escitalopram OxalateEscitalopram Oxalate22649
Fluticasone PropionateFluticasone Propionate22060
Citalopram HbrCitalopram Hydrobromide21147
Metformin HclMetformin Hcl21154
SimvastatinSimvastatin21048
XareltoRivaroxaban21028
Donepezil HclDonepezil Hcl20752
AllopurinolAllopurinol20260
MirtazapineMirtazapine19941
Sertraline HclSertraline Hcl19138
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18950
Trazodone HclTrazodone Hcl18651
FamotidineFamotidine17337
MeloxicamMeloxicam17048
Memantine HclMemantine Hcl16936
FinasterideFinasteride16539
TorsemideTorsemide16239
Tramadol HclTramadol Hcl15742
GemtesaVibegron15514
Duloxetine HclDuloxetine Hcl15239
Albuterol Sulfate HfaAlbuterol Sulfate14556
CarvedilolCarvedilol14143
Venlafaxine Hcl ErVenlafaxine Hcl13427
JardianceEmpagliflozin13330
Montelukast SodiumMontelukast Sodium13239
Olmesartan MedoxomilOlmesartan Medoxomil12832
Pravastatin SodiumPravastatin Sodium12237
Divalproex SodiumDivalproex Sodium12126
DigoxinDigoxin11919
Fluoxetine HclFluoxetine Hcl11827
Metformin Hcl ErMetformin Hcl11534
Bupropion XlBupropion Hcl11226
Buspirone HclBuspirone Hcl11123
Paroxetine HclParoxetine Hcl11125
PregabalinPregabalin11030
AlprazolamAlprazolam10827
MyrbetriqMirabegron10619
PrednisonePrednisone10254
EzetimibeEzetimibe10030
OzempicSemaglutide9824
Alendronate SodiumAlendronate Sodium9735
ClonazepamClonazepam9622
LevetiracetamLevetiracetam9617
Amiodarone HclAmiodarone Hcl9526
Tizanidine HclTizanidine Hcl9431
Trelegy ElliptaFluticasone/Umeclidin/Vilanter9319
CelecoxibCelecoxib9227
Ondansetron OdtOndansetron9235
Novolog FlexpenInsulin Aspart90suppressed
Doxycycline HyclateDoxycycline Hyclate8963
SpironolactoneSpironolactone8718
Diclofenac SodiumDiclofenac Sodium8634
GlimepirideGlimepiride8127
NitrofurantoinNitrofurantoin Macrocrystal8018
Hydralazine HclHydralazine Hcl7714
Lantus SolostarInsulin Glargine,hum.Rec.Anlog7616
Cyclobenzaprine HclCyclobenzaprine Hcl7528
EstradiolEstradiol7523
MethylprednisoloneMethylprednisolone7362
Carbidopa-LevodopaCarbidopa/Levodopa7212
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride7013
AtenololAtenolol6917
Triamcinolone AcetonideTriamcinolone Acetonide6936
Quetiapine FumarateQuetiapine Fumarate6820
LevofloxacinLevofloxacin6742
MounjaroTirzepatide67suppressed
JanuviaSitagliptin Phosphate64suppressed
CephalexinCephalexin6333
TemazepamTemazepam62suppressed
Dropsafe Pen NeedlePen Needle, Diabetic, Safety6115
Solifenacin SuccinateSolifenacin Succinate5715
EnuloseLactulose56suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium5621
Oxycodone HclOxycodone Hcl5612
Propranolol Hcl ErPropranolol Hcl5513
EntrestoSacubitril/Valsartan54suppressed
LorazepamLorazepam5411
Zolpidem TartrateZolpidem Tartrate5414
Ciprofloxacin HclCiprofloxacin Hcl5144
FenofibrateFenofibrate Nanocrystallized51suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen5119
SynthroidLevothyroxine Sodium5111
FenofibrateFenofibrate49suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl4814
Terazosin HclTerazosin Hcl4715
Propranolol HclPropranolol Hcl46suppressed
Tresiba Flextouch U-100Insulin Degludec46suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol4512
Clonidine HclClonidine Hcl4417
IrbesartanIrbesartan4414
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst4428
AzithromycinAzithromycin4232
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate4216
Ropinirole HclRopinirole Hcl4212
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide41suppressed
OxcarbazepineOxcarbazepine41suppressed
Amitriptyline HclAmitriptyline Hcl39suppressed
SucralfateSucralfate3918
Tresiba Flextouch U-200Insulin Degludec39suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro38suppressed
LatanoprostLatanoprost37suppressed
OlanzapineOlanzapine3711
UrsodiolUrsodiol37suppressed
GlipizideGlipizide3511
Isosorbide Mononitrate ErIsosorbide Mononitrate3413
Meclizine HclMeclizine Hcl3414
Benazepril HclBenazepril Hcl33suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid3213
Hydroxyzine HclHydroxyzine Hcl3113
Ipratropium BromideIpratropium Bromide3111
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide31suppressed
Novofine AutocoverPen Needle, Diabetic, Safety31suppressed
Doxepin HclDoxepin Hcl30suppressed
LamotrigineLamotrigine30suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog29suppressed
Dicyclomine HclDicyclomine Hcl29suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn29suppressed
Methenamine HippurateMethenamine Hippurate29suppressed
XifaxanRifaximin29suppressed
Bisoprolol FumarateBisoprolol Fumarate28suppressed
Midodrine HclMidodrine Hcl2811
PaxlovidNirmatrelvir/Ritonavir2828
Azelastine HclAzelastine Hcl26suppressed
Colestipol HclColestipol Hcl2612
LantusInsulin Glargine,hum.Rec.Anlog26suppressed
Oxybutynin ChlorideOxybutynin Chloride26suppressed
ValsartanValsartan26suppressed
Bethanechol ChlorideBethanechol Chloride25suppressed
CefdinirCefdinir2523
FentanylFentanyl25suppressed
Ibandronate SodiumIbandronate Sodium25suppressed
Ondansetron HclOndansetron Hcl2516
Repatha SureclickEvolocumab25suppressed
Risedronate SodiumRisedronate Sodium25suppressed
Tramadol Hcl ErTramadol Hcl25suppressed
Lidocaine HclLidocaine Hcl/Pf2417
Promethazine HclPromethazine Hcl24suppressed
ValacyclovirValacyclovir Hcl2415
Vancomycin HclVancomycin Hcl24suppressed
Ventolin HfaAlbuterol Sulfate24suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2318
AmoxicillinAmoxicillin2220
HumalogInsulin Lispro22suppressed
Oxybutynin Chloride ErOxybutynin Chloride22suppressed
Tolterodine Tartrate ErTolterodine Tartrate22suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc21suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl21suppressed
FluconazoleFluconazole2015
FarxigaDapagliflozin Propanediol19suppressed
SymbicortBudesonide/Formoterol Fumarate19suppressed
TrulicityDulaglutide19suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl18suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine18suppressed
Humalog Kwikpen U-100Insulin Lispro18suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate18suppressed
LacosamideLacosamide18suppressed
NystatinNystatin1814
Ranolazine ErRanolazine18suppressed
AcyclovirAcyclovir17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril17suppressed
Diltiazem HclDiltiazem Hcl17suppressed
DutasterideDutasteride17suppressed
Nebivolol HclNebivolol Hcl17suppressed
Potassium Citrate ErPotassium Citrate17suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1714
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
Breo ElliptaFluticasone/Vilanterol16suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate16suppressed
Glucagon Emergency KitGlucagon16suppressed
LoperamideLoperamide Hcl1612
ZaleplonZaleplon16suppressed
AnastrozoleAnastrozole15suppressed
AripiprazoleAripiprazole15suppressed
Clobetasol PropionateClobetasol Propionate15suppressed
NitroglycerinNitroglycerin1511
Spiriva HandihalerTiotropium Bromide15suppressed
TriazolamTriazolam15suppressed
Warfarin SodiumWarfarin Sodium15suppressed
Divalproex Sodium ErDivalproex Sodium14suppressed
Doxazosin MesylateDoxazosin Mesylate14suppressed
Folic AcidFolic Acid14suppressed
Fosfomycin TromethamineFosfomycin Tromethamine14suppressed
Olanzapine OdtOlanzapine14suppressed
Testosterone CypionateTestosterone Cypionate14suppressed
TradjentaLinagliptin14suppressed
AcetazolamideAcetazolamide13suppressed
Glatiramer AcetateGlatiramer Acetate13suppressed
Levetiracetam ErLevetiracetam13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
NovologInsulin Aspart13suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone12suppressed
Candesartan CilexetilCandesartan Cilexetil12suppressed
Cevimeline HclCevimeline Hcl12suppressed
CilostazolCilostazol12suppressed
Glipizide ErGlipizide12suppressed
HydrocortisoneHydrocortisone1211
Liothyronine SodiumLiothyronine Sodium12suppressed
RamelteonRamelteon12suppressed
RisperidoneRisperidone12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
Amiloride-HydrochlorothiazideAmiloride/Hydrochlorothiazide11suppressed
CeftriaxoneCeftriaxone Sodium11suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate11suppressed
ErtapenemErtapenem Sodium11suppressed
Insulin Aspart FlexpenInsulin Aspart11suppressed
Insulin LisproInsulin Lispro11suppressed
Lagevrio (Eua)Molnupiravir1111
MeprobamateMeprobamate11suppressed
Methadone HclMethadone Hcl11suppressed
MethocarbamolMethocarbamol11suppressed
Naltrexone HclNaltrexone Hcl11suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic11suppressed
NaproxenNaproxen11suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide11suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl11suppressed
TelmisartanTelmisartan11suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
TymlosAbaloparatide11suppressed

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 $293.21 · 16 records PFIZER INC. ABRYSVO, AREXVY, BEYFORTUS, COMIRNATY, ELIQUIS, FANAPT, FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE, FLUZONE HIGH-DOSE, GEMTESA, JARDIANCE, MENQUADFI, OTEZLA, PREVNAR 20, REPATHA, SHINGRIX, TERIPARATIDE, UNITHROID, WATCHMAN Access System, Wegovy 6
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