Healthcare provider profile · identity verified

Carnai Simpson, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · KINGWOOD, TX · NPI 1437531118

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 Carnai Simpson, M.D. received $612.78 in general payments during 2025 across 16 reported records.

AstraZeneca Pharmaceuticals LP accounted for 50.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, 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 49 claims for Farxiga 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 40 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 11 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 35 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

$612.78

16 reported records · 8 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $310.1150.6%62025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $73.9912.1%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $65.4710.7%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $61.4410.0%32025
BridgeBio Pharma, Inc. Unresolved — no canonical attribution shown $44.937.3%12025
Edwards Lifesciences Corporation Unresolved — no canonical attribution shown $24.304.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $16.972.8%12025
PFIZER INC. Unresolved — no canonical attribution shown $15.572.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$612.7816

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
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $265.38 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $65.47 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $61.44 3 2025
Source payment records
Attruby
Normalized: attruby
Drug BridgeBio Pharma, Inc. $44.93 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $44.02 2 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $42.40 2 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $41.69 1 2025
Source payment records
SAPIEN 3 Ultra RESILIA
Normalized: sapien 3 ultra resilia
Device Edwards Lifesciences Corporation $24.30 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $16.97 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $15.57 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
FARXIGA
farxiga
2025 Farxiga 2024 49 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 40 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
49 15
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
40 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
11 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
35 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 Calcium21280
Amlodipine BesylateAmlodipine Besylate13451
GabapentinGabapentin10436
Losartan PotassiumLosartan Potassium9638
Metoprolol SuccinateMetoprolol Succinate7425
Rosuvastatin CalciumRosuvastatin Calcium6022
Nifedipine ErNifedipine5725
Levothyroxine SodiumLevothyroxine Sodium5521
EzetimibeEzetimibe5419
Olmesartan MedoxomilOlmesartan Medoxomil5419
Metformin HclMetformin Hcl5324
Pantoprazole SodiumPantoprazole Sodium5318
LisinoprilLisinopril5223
Tizanidine HclTizanidine Hcl5027
FarxigaDapagliflozin Propanediol4915
HydrochlorothiazideHydrochlorothiazide4622
OzempicSemaglutide4013
CarvedilolCarvedilol3816
Duloxetine HclDuloxetine Hcl3615
Fluticasone PropionateFluticasone Propionate3619
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3614
OmeprazoleOmeprazole3617
EliquisApixaban35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3312
BaclofenBaclofen3216
Metoprolol TartrateMetoprolol Tartrate30suppressed
PrednisonePrednisone2825
Trazodone HclTrazodone Hcl2813
Metformin Hcl ErMetformin Hcl2711
MirtazapineMirtazapine27suppressed
Montelukast SodiumMontelukast Sodium26suppressed
ClopidogrelClopidogrel Bisulfate2513
FurosemideFurosemide2511
GlipizideGlipizide2511
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide22suppressed
SynthroidLevothyroxine Sodium22suppressed
GlimepirideGlimepiride21suppressed
Clonidine HclClonidine Hcl18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
IbuprofenIbuprofen1615
Isosorbide Mononitrate ErIsosorbide Mononitrate16suppressed
SimvastatinSimvastatin16suppressed
TrulicityDulaglutide16suppressed
ValsartanValsartan16suppressed
Diclofenac Sodium ErDiclofenac Sodium15suppressed
Sertraline HclSertraline Hcl15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1412
MeloxicamMeloxicam14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
Tamsulosin HclTamsulosin Hcl14suppressed
AzithromycinAzithromycin1313
Diclofenac SodiumDiclofenac Sodium13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
Hydralazine HclHydralazine Hcl12suppressed
FamotidineFamotidine11suppressed
RybelsusSemaglutide11suppressed

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 $612.78 · 16 records AstraZeneca Pharmaceuticals LP AIRSUPRA, Attruby, BREZTRI, FARXIGA, Ozempic, REPATHA, SAPIEN 3 Ultra RESILIA, VERQUVO, VYNDAQEL, WAINUA 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