Healthcare provider profile · identity verified

Matthew G. Nessmith, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · GREENVILLE, SC · NPI 1265490684

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 Matthew G. Nessmith, M.D. received $772.96 in general payments during 2025 across 16 reported records.

Edwards Lifesciences Corporation accounted for 54.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

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

Payment overview · 2025

General Payments

$772.96

16 reported records · 4 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
Edwards Lifesciences Corporation Unresolved — no canonical attribution shown $418.5954.1%72025
Boston Scientific Corporation Unresolved — no canonical attribution shown $199.6425.8%42025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$88.3011.4%32025
ABIOMED Unresolved — no canonical attribution shown $66.438.6%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$772.9616

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
SAPIEN 3 Ultra RESILIA
Normalized: sapien 3 ultra resilia
Device Edwards Lifesciences Corporation $379.18 6 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $156.04 2 2025
Source payment records
COREVALVE EVOLUT R
Normalized: corevalve evolut r
Device Medtronic, Inc. $52.32 2 2025
Source payment records
AVVIGO Guidance System
Normalized: avvigo guidance system
Device Boston Scientific Corporation $43.60 2 2025
Source payment records
SYMPLICITY G3
Normalized: symplicity g3
Device Medtronic, Inc. $35.98 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Metoprolol SuccinateMetoprolol Succinate615184
Rosuvastatin CalciumRosuvastatin Calcium432135
EliquisApixaban410107
CarvedilolCarvedilol30489
Atorvastatin CalciumAtorvastatin Calcium28386
Amlodipine BesylateAmlodipine Besylate25181
FurosemideFurosemide23986
NitroglycerinNitroglycerin194104
LisinoprilLisinopril17763
ClopidogrelClopidogrel Bisulfate16055
SpironolactoneSpironolactone15149
Losartan PotassiumLosartan Potassium14248
Repatha SureclickEvolocumab13724
Pravastatin SodiumPravastatin Sodium13444
Metoprolol TartrateMetoprolol Tartrate10837
EzetimibeEzetimibe10339
TorsemideTorsemide9637
JardianceEmpagliflozin8628
XareltoRivaroxaban7720
Potassium ChloridePotassium Chloride7424
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7221
Amiodarone HclAmiodarone Hcl6922
EntrestoSacubitril/Valsartan6816
Flecainide AcetateFlecainide Acetate6017
Isosorbide Mononitrate ErIsosorbide Mononitrate5921
AtenololAtenolol5316
Diltiazem 24hr Er (Cd)Diltiazem Hcl5318
Hydralazine HclHydralazine Hcl5315
SotalolSotalol Hcl5315
Pantoprazole SodiumPantoprazole Sodium5220
ValsartanValsartan5018
Warfarin SodiumWarfarin Sodium4914
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4514
Ranolazine ErRanolazine4012
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril2911
HydrochlorothiazideHydrochlorothiazide2911
RamiprilRamipril29suppressed
MultaqDronedarone Hcl26suppressed
Klor-Con M10Potassium Chloride23suppressed
Praluent PenAlirocumab23suppressed
OmeprazoleOmeprazole20suppressed
Verapamil ErVerapamil Hcl20suppressed
DigoxinDigoxin18suppressed
Benazepril HclBenazepril Hcl17suppressed
FenofibrateFenofibrate Nanocrystallized16suppressed
Nebivolol HclNebivolol Hcl15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Prasugrel HclPrasugrel Hcl15suppressed
Repatha SyringeEvolocumab15suppressed
BrilintaTicagrelor14suppressed
MetolazoneMetolazone14suppressed
Clonidine HclClonidine Hcl13suppressed
AmoxicillinAmoxicillin12suppressed
BumetanideBumetanide12suppressed
FarxigaDapagliflozin Propanediol11suppressed
SimvastatinSimvastatin11suppressed

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 $772.96 · 16 records Edwards Lifesciences Corporation AVVIGO Guidance System, COREVALVE EVOLUT R, SAPIEN 3 Ultra RESILIA, SYMPLICITY G3, WATCHMAN FLX
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