Healthcare provider profile · identity verified

Douglas A. Layton, DO

Allopathic & Osteopathic Physicians|Family Medicine · POLK CITY, IA · NPI 1831159193

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 Douglas A. Layton, DO received $181.00 in general payments during 2025 across 10 reported records.

Lilly USA, LLC accounted for 40.0% 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: Mounjaro, Nurtec Odt.

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 61 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 65 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 93 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 95 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Rybelsus by this doctor in 2024.

Otsuka America Pharmaceutical, 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 NUEDEXTA as an associated drug or biological on 393 records involving 285 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Nuedexta 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 54 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Nurtec Odt by this doctor in 2024.

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

Payment overview · 2025

General Payments

$181.00

10 reported records · 7 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 $72.4940.0%42025
Novo Nordisk Inc Unresolved — no canonical attribution shown $25.9414.3%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $18.4410.2%12025
Ascensia Diabetes Care Us Inc. Unresolved — no canonical attribution shown $18.2310.1%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $18.1510.0%12025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $14.037.8%12025
PFIZER INC. Unresolved — no canonical attribution shown $13.727.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$181.0010

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
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $39.42 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $33.07 2 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $33.07 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $25.94 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $18.15 1 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $14.03 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $13.72 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $13.72 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
MOUNJARO
mounjaro
2025 Mounjaro 2024 93 exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 23
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
61 17
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
65 20
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
93 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
95 24
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 NUEDEXTA
open payments reported associated product
CMS Open Payments — General Payments
393 supporting records · 285 recipient NPIs · example record 1227268901
Nuedexta · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
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
54 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
23 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
Atorvastatin CalciumAtorvastatin Calcium370100
Rosuvastatin CalciumRosuvastatin Calcium25980
Levothyroxine SodiumLevothyroxine Sodium24856
LisinoprilLisinopril23565
Metformin Hcl ErMetformin Hcl15548
OmeprazoleOmeprazole15337
Losartan PotassiumLosartan Potassium15247
Tamsulosin HclTamsulosin Hcl15145
Amlodipine BesylateAmlodipine Besylate14040
GabapentinGabapentin13234
Metoprolol SuccinateMetoprolol Succinate12839
Pantoprazole SodiumPantoprazole Sodium12432
Metoprolol TartrateMetoprolol Tartrate9922
Tizanidine HclTizanidine Hcl9721
HydrochlorothiazideHydrochlorothiazide9628
OzempicSemaglutide9524
PrednisonePrednisone9571
MounjaroTirzepatide9313
LevetiracetamLevetiracetam8613
BaclofenBaclofen8113
Venlafaxine Hcl ErVenlafaxine Hcl8121
FamotidineFamotidine7321
Warfarin SodiumWarfarin Sodium70suppressed
CefdinirCefdinir6958
Escitalopram OxalateEscitalopram Oxalate6918
Albuterol Sulfate HfaAlbuterol Sulfate6728
Trazodone HclTrazodone Hcl6622
JardianceEmpagliflozin6520
FurosemideFurosemide6315
MeloxicamMeloxicam6321
FarxigaDapagliflozin Propanediol6117
SimvastatinSimvastatin6116
Duloxetine HclDuloxetine Hcl6015
Potassium ChloridePotassium Chloride5512
EliquisApixaban54suppressed
AllopurinolAllopurinol5114
Cyclobenzaprine HclCyclobenzaprine Hcl5015
FinasterideFinasteride5016
Metformin HclMetformin Hcl4814
Chlorhexidine GluconateChlorhexidine Gluconate4411
Benazepril HclBenazepril Hcl4212
Fluoxetine HclFluoxetine Hcl4011
EzetimibeEzetimibe3911
Bupropion XlBupropion Hcl3813
Ropinirole HclRopinirole Hcl38suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3731
Ciprofloxacin HclCiprofloxacin Hcl3725
Ipratropium BromideIpratropium Bromide36suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3611
MirtazapineMirtazapine3615
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril3511
Pravastatin SodiumPravastatin Sodium34suppressed
Albuterol SulfateAlbuterol Sulfate33suppressed
CephalexinCephalexin3120
DiazepamDiazepam3115
Hydroxyzine HclHydroxyzine Hcl31suppressed
XareltoRivaroxaban31suppressed
Amitriptyline HclAmitriptyline Hcl30suppressed
Tramadol HclTramadol Hcl30suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide29suppressed
Nortriptyline HclNortriptyline Hcl29suppressed
LevofloxacinLevofloxacin2826
AmoxicillinAmoxicillin2714
CarvedilolCarvedilol27suppressed
RybelsusSemaglutide27suppressed
GlycopyrrolateGlycopyrrolate26suppressed
IrbesartanIrbesartan26suppressed
Quetiapine FumarateQuetiapine Fumarate26suppressed
Zolpidem TartrateZolpidem Tartrate25suppressed
KetoconazoleKetoconazole2414
SpironolactoneSpironolactone24suppressed
Nurtec OdtRimegepant Sulfate23suppressed
Sertraline HclSertraline Hcl22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Fluticasone PropionateFluticasone Propionate20suppressed
LactuloseLactulose20suppressed
Montelukast SodiumMontelukast Sodium20suppressed
Oxybutynin Chloride ErOxybutynin Chloride20suppressed
Propranolol HclPropranolol Hcl20suppressed
Aimovig AutoinjectorErenumab-Aooe19suppressed
Alendronate SodiumAlendronate Sodium19suppressed
Diclofenac PotassiumDiclofenac Potassium1812
Diltiazem 24hr Er (Cd)Diltiazem Hcl18suppressed
FenofibrateFenofibrate Nanocrystallized18suppressed
BudesonideBudesonide17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1713
AmantadineAmantadine Hcl16suppressed
Amiodarone HclAmiodarone Hcl16suppressed
Combivent RespimatIpratropium/Albuterol Sulfate16suppressed
FenofibrateFenofibrate16suppressed
Oxybutynin ChlorideOxybutynin Chloride16suppressed
Valproic AcidValproic Acid (As Sodium Salt)16suppressed
ClarithromycinClarithromycin1515
ClopidogrelClopidogrel Bisulfate15suppressed
NuedextaDextromethorphan Hbr/Quinidine15suppressed
AcetylcysteineAcetylcysteine14suppressed
AtenololAtenolol14suppressed
JanuviaSitagliptin Phosphate14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
Doxycycline HyclateDoxycycline Hyclate13suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13suppressed
HydrocortisoneHydrocortisone13suppressed
LamotrigineLamotrigine13suppressed
NaproxenNaproxen13suppressed
OxycontinOxycodone Hcl13suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog12suppressed
Carbidopa-LevodopaCarbidopa/Levodopa12suppressed
DutasterideDutasteride12suppressed
Memantine HclMemantine Hcl12suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide11suppressed
CelecoxibCelecoxib11suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)11suppressed
Meclizine HclMeclizine Hcl11suppressed
Medroxyprogesterone AcetateMedroxyprogesterone Acetate11suppressed
MovantikNaloxegol Oxalate11suppressed

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 $181.00 · 10 records Lilly USA, LLC KISUNLA, MOUNJARO, NURTEC ODT, REXULTI, TZIELD, Wegovy, ZAVZPRET, ZEPBOUND 8
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