Healthcare provider profile · identity verified

Christopher Mark Duhan, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · WICHITA FALLS, TX · NPI 1265484752

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 Christopher Mark Duhan, M.D. received $1,373.71 in general payments during 2025 across 83 reported records.

Novo Nordisk Inc accounted for 15.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 34 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Farxiga, Jardiance, Mounjaro, Ozempic, Rybelsus, Trelegy Ellipta.

ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Synthroid by this doctor in 2024.

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 47 claims for Farxiga by this doctor in 2024.

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 38 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 14 claims for Trelegy Ellipta 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 38 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 14 claims for Mounjaro 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 16 claims for Trulicity 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 105 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 12 claims for Rybelsus 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 56 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,373.71

83 reported records · 18 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 $207.4215.1%132025
PFIZER INC. Unresolved — no canonical attribution shown $193.4314.1%142025
Lilly USA, LLC Unresolved — no canonical attribution shown $190.4813.9%132025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $158.6811.6%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $154.8411.3%112025
Exact Sciences Corporation Unresolved — no canonical attribution shown $78.525.7%52025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $67.924.9%42025
Dexcom, Inc. Unresolved — no canonical attribution shown $55.484.0%32025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $53.513.9%72025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $41.473.0%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $39.862.9%22025
ABBVIE INC. Unresolved — no canonical attribution shown $24.901.8%12025
Mannkind Corporation Unresolved — no canonical attribution shown $21.841.6%12025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $20.671.5%12025
Amgen Inc. Unresolved — no canonical attribution shown $20.181.5%12025
Abbott Laboratories Unresolved — no canonical attribution shown $16.351.2%12025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $14.181.0%12025
IBSA Pharma Inc. Unresolved — no canonical attribution shown $13.981.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,373.7183

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
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $183.87 12 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $183.87 12 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $160.09 11 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $158.68 2 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $141.15 8 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $141.15 8 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $138.22 10 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $137.15 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $127.20 9 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $78.52 5 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $67.92 4 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $55.48 3 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $53.51 7 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $52.57 4 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $41.47 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $39.86 2 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $33.34 3 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $33.34 3 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $33.34 3 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $27.64 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $27.64 2 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $24.90 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $21.87 1 2025
Source payment records
AFREZZA
Normalized: afrezza
Drug Mannkind Corporation $21.84 1 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $20.67 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $20.18 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $16.35 1 2025
Source payment records
Jornay PM
Normalized: jornay pm
Drug Collegium Pharmaceutical, Inc. $14.18 1 2025
Source payment records
PENMENVY
Normalized: penmenvy
Biological GlaxoSmithKline, LLC. $14.07 1 2025
Source payment records
Flector
Normalized: flector
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
Licart
Normalized: licart
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
Tirosint
Normalized: tirosint
Drug IBSA Pharma Inc. $13.98 1 2025
Source payment records
BEXSERO
Normalized: bexsero
Biological GlaxoSmithKline, LLC. $13.57 1 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $6.61 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 56 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 47
Beneficiary count suppressed
exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 38 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 14
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 105 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 14
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
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
47 suppressed by CMS
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
38 15
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
14 suppressed by CMS
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
38 15
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
14 suppressed by CMS
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
16 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
105 13
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
12 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
56 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
Levothyroxine SodiumLevothyroxine Sodium33992
LisinoprilLisinopril33899
Atorvastatin CalciumAtorvastatin Calcium28484
Rosuvastatin CalciumRosuvastatin Calcium21964
OmeprazoleOmeprazole21756
GabapentinGabapentin17856
FurosemideFurosemide16744
SimvastatinSimvastatin16038
Metformin HclMetformin Hcl15746
Amlodipine BesylateAmlodipine Besylate15545
Pravastatin SodiumPravastatin Sodium15039
Losartan PotassiumLosartan Potassium14335
MeloxicamMeloxicam14339
Metoprolol SuccinateMetoprolol Succinate13134
HydrochlorothiazideHydrochlorothiazide13036
Tamsulosin HclTamsulosin Hcl12833
Trazodone HclTrazodone Hcl11131
OzempicSemaglutide10513
Tramadol HclTramadol Hcl10533
Olmesartan MedoxomilOlmesartan Medoxomil9925
PrednisonePrednisone9978
CarvedilolCarvedilol9728
Pantoprazole SodiumPantoprazole Sodium9627
Albuterol Sulfate HfaAlbuterol Sulfate8629
FinasterideFinasteride8521
AllopurinolAllopurinol8227
AlprazolamAlprazolam8218
Duloxetine HclDuloxetine Hcl7921
Metoprolol TartrateMetoprolol Tartrate7926
SpironolactoneSpironolactone7822
Potassium ChloridePotassium Chloride7521
Ropinirole HclRopinirole Hcl7217
Citalopram HbrCitalopram Hydrobromide6920
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6920
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6714
Montelukast SodiumMontelukast Sodium6417
ClopidogrelClopidogrel Bisulfate6014
EliquisApixaban5614
Sertraline HclSertraline Hcl5111
CelecoxibCelecoxib5015
GlipizideGlipizide4914
FarxigaDapagliflozin Propanediol47suppressed
Memantine HclMemantine Hcl4713
AzithromycinAzithromycin4640
Oxybutynin ChlorideOxybutynin Chloride4515
Venlafaxine Hcl ErVenlafaxine Hcl44suppressed
Buspirone HclBuspirone Hcl4317
Fluoxetine HclFluoxetine Hcl4313
Ciprofloxacin HclCiprofloxacin Hcl4233
EzetimibeEzetimibe4012
FluconazoleFluconazole3920
LorazepamLorazepam39suppressed
JardianceEmpagliflozin3815
RamiprilRamipril3811
Alendronate SodiumAlendronate Sodium35suppressed
ChlorthalidoneChlorthalidone3411
Donepezil HclDonepezil Hcl3411
Escitalopram OxalateEscitalopram Oxalate3413
Zolpidem TartrateZolpidem Tartrate34suppressed
ClonazepamClonazepam33suppressed
FenofibrateFenofibrate Nanocrystallized3311
Metformin Hcl ErMetformin Hcl3312
Esomeprazole MagnesiumEsomeprazole Magnesium32suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide30suppressed
Oxybutynin Chloride ErOxybutynin Chloride29suppressed
PregabalinPregabalin29suppressed
Acetaminophen-CodeineAcetaminophen With Codeine28suppressed
Hydroxyzine HclHydroxyzine Hcl27suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide26suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2312
NaproxenNaproxen22suppressed
ValsartanValsartan22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
FamotidineFamotidine21suppressed
FenofibrateFenofibrate21suppressed
SynthroidLevothyroxine Sodium21suppressed
FenofibrateFenofibrate,micronized20suppressed
DiazepamDiazepam19suppressed
LevetiracetamLevetiracetam18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
Bupropion XlBupropion Hcl17suppressed
Fosinopril SodiumFosinopril Sodium17suppressed
GlimepirideGlimepiride17suppressed
JanuviaSitagliptin Phosphate17suppressed
MethocarbamolMethocarbamol17suppressed
AtenololAtenolol16suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
DutasterideDutasteride16suppressed
Propranolol HclPropranolol Hcl16suppressed
RisperidoneRisperidone16suppressed
TrulicityDulaglutide16suppressed
ValacyclovirValacyclovir Hcl16suppressed
AmoxicillinAmoxicillin1513
TelmisartanTelmisartan15suppressed
Verapamil ErVerapamil Hcl15suppressed
AripiprazoleAripiprazole14suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol14suppressed
Clonidine HclClonidine Hcl14suppressed
EstradiolEstradiol14suppressed
IrbesartanIrbesartan14suppressed
MounjaroTirzepatide14suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1414
Pioglitazone HclPioglitazone Hcl14suppressed
PremarinEstrogens, Conjugated14suppressed
Spiriva RespimatTiotropium Bromide14suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter14suppressed
XareltoRivaroxaban14suppressed
Fluticasone PropionateFluticasone Propionate13suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide13suppressed
Terazosin HclTerazosin Hcl13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
Tizanidine HclTizanidine Hcl13suppressed
Alprazolam ErAlprazolam12suppressed
GlyburideGlyburide12suppressed
Humulin R U-500Insulin Regular, Human12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
Icosapent EthylIcosapent Ethyl12suppressed
LovastatinLovastatin12suppressed
Meclizine HclMeclizine Hcl12suppressed
PiroxicamPiroxicam12suppressed
RybelsusSemaglutide12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
ClonidineClonidine11suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
EszopicloneEszopiclone11suppressed
Ezetimibe-SimvastatinEzetimibe/Simvastatin11suppressed
Glipizide ErGlipizide11suppressed
Ondansetron OdtOndansetron11suppressed
Promethazine HclPromethazine 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 $1,373.71 · 83 records Novo Nordisk Inc ABRYSVO, AFREZZA, AIRSUPRA, AREXVY, Auvelity, BEXSERO, COMIRNATY, Cologuard Collection Kit, Dexcom G6 Transmitter, ELIQUIS, FARXIGA, FREESTYLE LIBRE 3, Flector, JARDIANCE, Jornay PM, KISUNLA, KRYSTEXXA, Kerendia, Licart, MOUNJARO, NURTEC ODT, Ozempic, PENMENVY, PREVNAR 20, Rybelsus, SHINGRIX, TRELEGY ELLIPTA, Tirosint, UBRELVY, VOQUEZNA, Veozah, Wegovy, ZAVZPRET, ZEPBOUND 10
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