Healthcare provider profile · identity verified

Christopher C Chapman, MD

Allopathic & Osteopathic Physicians|Family Medicine · CONROE, TX · NPI 1164426888

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 C Chapman, MD received $1,006.96 in general payments during 2025 across 40 reported records.

Amgen Inc. accounted for 20.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Ozempic, 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 12 claims for Synthroid 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 36 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 74 claims for Trelegy Ellipta by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Entresto 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 140 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 36 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

$1,006.96

40 reported records · 13 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
Amgen Inc. Unresolved — no canonical attribution shown $204.2320.3%62025
ABBVIE INC. Unresolved — no canonical attribution shown $137.7113.7%92025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $137.6513.7%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $134.0013.3%62025
Dexcom, Inc. Unresolved — no canonical attribution shown $95.889.5%42025
PFIZER INC. Unresolved — no canonical attribution shown $74.977.5%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $47.874.8%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $44.744.4%22025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $31.843.2%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $31.273.1%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $24.422.4%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $23.812.4%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.571.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,006.9640

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. $137.65 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $134.00 6 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $121.84 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $106.33 8 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $106.33 8 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $95.88 4 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $82.39 5 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $74.97 3 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $59.54 4 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $47.87 2 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $31.84 2 2025
Source payment records
  • 2025-07-09 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.14 · Open Payments source
  • 2025-09-22 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.70 · Open Payments source
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $31.38 1 2025
Source payment records
EYLEA HD
Normalized: eylea hd
Biological Regeneron Healthcare Solutions, Inc. $31.27 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $28.43 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $26.38 1 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $24.42 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $23.81 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $23.28 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $21.46 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $18.57 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
JARDIANCE
jardiance
2025 Jardiance 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 140 exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 74 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
12 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
36 suppressed by CMS
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
74 25
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
11 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
140 36
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
36 12

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 Besylate410131
Atorvastatin CalciumAtorvastatin Calcium313110
Levothyroxine SodiumLevothyroxine Sodium29489
Rosuvastatin CalciumRosuvastatin Calcium28295
LisinoprilLisinopril16863
OzempicSemaglutide14036
Trazodone HclTrazodone Hcl13343
Losartan PotassiumLosartan Potassium12642
Pantoprazole SodiumPantoprazole Sodium12643
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11023
Duloxetine HclDuloxetine Hcl10935
Metformin Hcl ErMetformin Hcl10134
Metformin HclMetformin Hcl9633
GabapentinGabapentin9535
Metoprolol SuccinateMetoprolol Succinate9434
FurosemideFurosemide8934
Tamsulosin HclTamsulosin Hcl8125
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7823
Tramadol HclTramadol Hcl7422
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7425
AlprazolamAlprazolam6613
OmeprazoleOmeprazole6621
SimvastatinSimvastatin6521
Pioglitazone HclPioglitazone Hcl6319
Pravastatin SodiumPravastatin Sodium6219
HydrochlorothiazideHydrochlorothiazide6122
AtenololAtenolol6021
EzetimibeEzetimibe5820
Metoprolol TartrateMetoprolol Tartrate5818
Alendronate SodiumAlendronate Sodium5615
TelmisartanTelmisartan5517
FamotidineFamotidine5222
GlipizideGlipizide4919
CarvedilolCarvedilol4716
MounjaroTirzepatide4612
Sertraline HclSertraline Hcl4621
AllopurinolAllopurinol4514
MeloxicamMeloxicam4523
NateglinideNateglinide4217
PrednisonePrednisone4222
Fluticasone PropionateFluticasone Propionate4117
FenofibrateFenofibrate Nanocrystallized4013
LorazepamLorazepam40suppressed
ClopidogrelClopidogrel Bisulfate3917
Escitalopram OxalateEscitalopram Oxalate3914
Tizanidine HclTizanidine Hcl3719
EliquisApixaban3612
JardianceEmpagliflozin36suppressed
PregabalinPregabalin3511
SpironolactoneSpironolactone32suppressed
TemazepamTemazepam32suppressed
BaclofenBaclofen3112
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3111
ValacyclovirValacyclovir Hcl31suppressed
Glipizide ErGlipizide3011
Albuterol Sulfate HfaAlbuterol Sulfate2915
CelecoxibCelecoxib2911
Acetaminophen-CodeineAcetaminophen With Codeine2612
Buspirone HclBuspirone Hcl24suppressed
DiazepamDiazepam24suppressed
FenofibrateFenofibrate24suppressed
TradjentaLinagliptin24suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril23suppressed
Nortriptyline HclNortriptyline Hcl23suppressed
TestosteroneTestosterone23suppressed
Bupropion XlBupropion Hcl22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium22suppressed
Propranolol HclPropranolol Hcl22suppressed
Montelukast SodiumMontelukast Sodium21suppressed
Venlafaxine Hcl ErVenlafaxine Hcl21suppressed
LovastatinLovastatin20suppressed
Testosterone CypionateTestosterone Cypionate20suppressed
VascepaIcosapent Ethyl19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
EtodolacEtodolac18suppressed
Potassium ChloridePotassium Chloride18suppressed
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid18suppressed
Doxycycline HyclateDoxycycline Hyclate1711
FinasterideFinasteride17suppressed
Warfarin SodiumWarfarin Sodium17suppressed
AzithromycinAzithromycin1614
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone15suppressed
ClonazepamClonazepam15suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Tresiba Flextouch U-100Insulin Degludec15suppressed
BelsomraSuvorexant14suppressed
Dicyclomine HclDicyclomine Hcl14suppressed
Icosapent EthylIcosapent Ethyl14suppressed
MethocarbamolMethocarbamol14suppressed
Tresiba Flextouch U-200Insulin Degludec14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
Divalproex SodiumDivalproex Sodium13suppressed
Terbinafine HclTerbinafine Hcl13suppressed
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
FenofibrateFenofibrate,micronized12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
SynthroidLevothyroxine Sodium12suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Tramadol Hcl ErTramadol Hcl12suppressed
EntrestoSacubitril/Valsartan11suppressed
LamotrigineLamotrigine11suppressed
Memantine HclMemantine Hcl11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim11suppressed

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 $1,006.96 · 40 records Amgen Inc. AIRSUPRA, AREXVY, BREZTRI, Cologuard Collection Kit, Dexcom G6 Transmitter, EVENITY, EYLEA HD, JARDIANCE, LEQVIO, NURTEC ODT, OTEZLA, Ozempic, QULIPTA, REPATHA, TRELEGY ELLIPTA, UBRELVY, VRAYLAR, Veozah, XIFAXAN, ZAVZPRET 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