Healthcare provider profile · identity verified

Gregory Vincent Collins, MD

Internal Medicine · CHARLOTTE, NC · NPI 1700810488

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium445176
Amlodipine BesylateAmlodipine Besylate444166
Levothyroxine SodiumLevothyroxine Sodium389146
Rosuvastatin CalciumRosuvastatin Calcium261101
OmeprazoleOmeprazole22479
Olmesartan MedoxomilOlmesartan Medoxomil21079
LisinoprilLisinopril16860
Metoprolol SuccinateMetoprolol Succinate16866
Trazodone HclTrazodone Hcl14341
Metformin Hcl ErMetformin Hcl14251
Losartan PotassiumLosartan Potassium13760
Metformin HclMetformin Hcl12642
SimvastatinSimvastatin12142
Tamsulosin HclTamsulosin Hcl10739
FamotidineFamotidine10336
Escitalopram OxalateEscitalopram Oxalate10236
MeloxicamMeloxicam10035
GabapentinGabapentin9733
AllopurinolAllopurinol8733
Albuterol Sulfate HfaAlbuterol Sulfate8224
AlprazolamAlprazolam8235
Sertraline HclSertraline Hcl8229
HydrochlorothiazideHydrochlorothiazide7632
Alendronate SodiumAlendronate Sodium6921
Fluticasone PropionateFluticasone Propionate6928
Pantoprazole SodiumPantoprazole Sodium6926
Potassium ChloridePotassium Chloride6223
EliquisApixaban6014
TelmisartanTelmisartan5815
CarvedilolCarvedilol5722
FinasterideFinasteride5524
Glipizide ErGlipizide5420
EzetimibeEzetimibe5119
Pravastatin SodiumPravastatin Sodium5116
FurosemideFurosemide4921
MirtazapineMirtazapine4916
Duloxetine HclDuloxetine Hcl4815
Bupropion XlBupropion Hcl4717
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4717
Metoprolol TartrateMetoprolol Tartrate4619
Montelukast SodiumMontelukast Sodium4415
SpironolactoneSpironolactone4416
Clonidine HclClonidine Hcl4314
OzempicSemaglutide43suppressed
ClopidogrelClopidogrel Bisulfate4113
Fluoxetine HclFluoxetine Hcl3812
JanuviaSitagliptin Phosphate3812
Alfuzosin Hcl ErAlfuzosin Hcl3711
Donepezil HclDonepezil Hcl33suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3316
LorazepamLorazepam3215
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide3214
PrednisonePrednisone29suppressed
Raloxifene HclRaloxifene Hcl2913
FenofibrateFenofibrate28suppressed
SynthroidLevothyroxine Sodium2812
Citalopram HbrCitalopram Hydrobromide27suppressed
Hydralazine HclHydralazine Hcl27suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2713
Pioglitazone HclPioglitazone Hcl26suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl25suppressed
ClonazepamClonazepam24suppressed
AcyclovirAcyclovir23suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter23suppressed
Ammonium LactateAmmonium Lactate22suppressed
IrbesartanIrbesartan21suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
Cholestyramine LightCholestyramine20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium20suppressed
CelecoxibCelecoxib19suppressed
Tramadol HclTramadol Hcl19suppressed
ValsartanValsartan19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
BumetanideBumetanide18suppressed
Carbidopa-LevodopaCarbidopa/Levodopa18suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide17suppressed
Labetalol HclLabetalol Hcl16suppressed
AtenololAtenolol15suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic15suppressed
DiazepamDiazepam14suppressed
GemfibrozilGemfibrozil14suppressed
Klor-Con M20Potassium Chloride14suppressed
Tresiba Flextouch U-100Insulin Degludec14suppressed
AmoxicillinAmoxicillin13suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
DigoxinDigoxin12suppressed
JardianceEmpagliflozin12suppressed
Amiodarone HclAmiodarone Hcl11suppressed
LantusInsulin Glargine,hum.Rec.Anlog11suppressed
Nortriptyline HclNortriptyline Hcl11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed
TrulicityDulaglutide11suppressed

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
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