Healthcare provider profile · identity verified

David W Allen, MD

Allopathic & Osteopathic Physicians|Internal Medicine · NASHVILLE, TN · NPI 1316933955

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 David W Allen, MD received $202.38 in general payments during 2025 across 12 reported records.

Sumitomo Pharma America, Inc. accounted for 35.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Gemtesa, Ozempic.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Farxiga 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Mounjaro 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 25 claims for Ozempic 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 40 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

$202.38

12 reported records · 5 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
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $72.1135.6%42025
Novo Nordisk Inc Unresolved — no canonical attribution shown $51.3425.4%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $32.5216.1%22025
Exact Sciences Corporation Unresolved — no canonical attribution shown $28.0913.9%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $18.329.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$202.3812

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
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $72.11 4 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $37.49 2 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $28.09 2 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $19.01 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $18.92 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $18.32 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $13.85 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $13.51 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
FARXIGA
farxiga
2025 Farxiga 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
GEMTESA
gemtesa
2025 Gemtesa 2024 40 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 25
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
61 13
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
25 suppressed by CMS
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
40 13

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
Levothyroxine SodiumLevothyroxine Sodium33390
Amlodipine BesylateAmlodipine Besylate28981
Losartan PotassiumLosartan Potassium25871
Rosuvastatin CalciumRosuvastatin Calcium25480
AlprazolamAlprazolam25049
Pantoprazole SodiumPantoprazole Sodium24278
Atorvastatin CalciumAtorvastatin Calcium23667
PrednisonePrednisone204107
Sertraline HclSertraline Hcl16841
Tamsulosin HclTamsulosin Hcl14141
FurosemideFurosemide14033
HydrochlorothiazideHydrochlorothiazide13037
Metoprolol SuccinateMetoprolol Succinate12730
GabapentinGabapentin12635
Zolpidem TartrateZolpidem Tartrate11640
AzithromycinAzithromycin11590
EliquisApixaban10524
ClonazepamClonazepam10017
Tramadol HclTramadol Hcl9924
OmeprazoleOmeprazole9726
MeloxicamMeloxicam9535
PregabalinPregabalin8926
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8516
SimvastatinSimvastatin8024
Ciprofloxacin HclCiprofloxacin Hcl7855
Metoprolol TartrateMetoprolol Tartrate7121
EstradiolEstradiol7024
Duloxetine HclDuloxetine Hcl6919
Bupropion XlBupropion Hcl6816
Diclofenac SodiumDiclofenac Sodium6620
Escitalopram OxalateEscitalopram Oxalate6317
IbuprofenIbuprofen6221
MounjaroTirzepatide6113
Montelukast SodiumMontelukast Sodium6021
Donepezil HclDonepezil Hcl5512
AllopurinolAllopurinol5214
Oxybutynin ChlorideOxybutynin Chloride5219
FinasterideFinasteride5115
LevofloxacinLevofloxacin5044
LisinoprilLisinopril4111
MirtazapineMirtazapine4115
Olmesartan MedoxomilOlmesartan Medoxomil4111
GemtesaVibegron4013
XareltoRivaroxaban40suppressed
CarvedilolCarvedilol39suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl38suppressed
OlanzapineOlanzapine38suppressed
PaxlovidNirmatrelvir/Ritonavir3838
Trazodone HclTrazodone Hcl3813
ClopidogrelClopidogrel Bisulfate3714
Potassium ChloridePotassium Chloride37suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate3613
Venlafaxine Hcl ErVenlafaxine Hcl36suppressed
SynthroidLevothyroxine Sodium35suppressed
Buspirone HclBuspirone Hcl34suppressed
CefuroximeCefuroxime Axetil3324
GlyburideGlyburide33suppressed
MethylprednisoloneMethylprednisolone3331
Albuterol Sulfate HfaAlbuterol Sulfate3216
Carbidopa-LevodopaCarbidopa/Levodopa32suppressed
Metformin HclMetformin Hcl3212
Quetiapine FumarateQuetiapine Fumarate32suppressed
ValacyclovirValacyclovir Hcl3114
Cyclobenzaprine HclCyclobenzaprine Hcl3016
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine2912
CelecoxibCelecoxib28suppressed
Fluoxetine HclFluoxetine Hcl28suppressed
AtenololAtenolol27suppressed
MetronidazoleMetronidazole2724
Lantus SolostarInsulin Glargine,hum.Rec.Anlog25suppressed
OzempicSemaglutide25suppressed
PremarinEstrogens, Conjugated25suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid25suppressed
FluconazoleFluconazole2415
Nifedipine ErNifedipine24suppressed
Citalopram HbrCitalopram Hydrobromide23suppressed
Dicyclomine HclDicyclomine Hcl23suppressed
Clobetasol PropionateClobetasol Propionate22suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter22suppressed
Glipizide ErGlipizide21suppressed
Methylphenidate HclMethylphenidate Hcl21suppressed
Ondansetron HclOndansetron Hcl2118
Amiodarone HclAmiodarone Hcl20suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
MyrbetriqMirabegron20suppressed
Metformin Hcl ErMetformin Hcl19suppressed
AcyclovirAcyclovir17suppressed
Doxycycline HyclateDoxycycline Hyclate1713
Terbinafine HclTerbinafine Hcl1711
TelmisartanTelmisartan16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1513
CholestyramineCholestyramine (With Sugar)15suppressed
Clindamycin HclClindamycin Hcl1512
Esomeprazole MagnesiumEsomeprazole Magnesium15suppressed
NitrofurantoinNitrofurantoin Macrocrystal15suppressed
Testosterone CypionateTestosterone Cypionate15suppressed
Alendronate SodiumAlendronate Sodium14suppressed
Clorazepate DipotassiumClorazepate Dipotassium14suppressed
Ibandronate SodiumIbandronate Sodium14suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen14suppressed
Chlordiazepoxide HclChlordiazepoxide Hcl13suppressed
Clonidine HclClonidine Hcl13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Midodrine HclMidodrine Hcl13suppressed
MultaqDronedarone Hcl13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Paroxetine HclParoxetine Hcl13suppressed
SotalolSotalol Hcl13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
FarxigaDapagliflozin Propanediol12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
Lithium CarbonateLithium Carbonate12suppressed
LorazepamLorazepam12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
MinoxidilMinoxidil12suppressed
NamzaricMemantine Hcl/Donepezil Hcl12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Oseltamivir PhosphateOseltamivir Phosphate1212
ViberziEluxadoline12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
Azelastine HclAzelastine Hcl11suppressed
Benazepril HclBenazepril Hcl11suppressed
EzetimibeEzetimibe11suppressed
HydrocortisoneHydrocortisone11suppressed
IrbesartanIrbesartan11suppressed
LansoprazoleLansoprazole11suppressed
LovastatinLovastatin11suppressed
Nebivolol HclNebivolol Hcl11suppressed
Pravastatin SodiumPravastatin Sodium11suppressed
Propranolol HclPropranolol Hcl11suppressed
Raloxifene HclRaloxifene Hcl11suppressed
Terazosin HclTerazosin 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 $202.38 · 12 records Sumitomo Pharma America, Inc. AIRSUPRA, Cologuard Collection Kit, FARXIGA, GEMTESA, Ozempic, Rybelsus, Wegovy, ZEPBOUND 4
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