Healthcare provider profile · identity verified

William Owen Griffiths, M.D.

Internal Medicine · RALEIGH, NC · NPI 1952322406

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 Calcium1023294
Amlodipine BesylateAmlodipine Besylate948278
Losartan PotassiumLosartan Potassium394109
Rosuvastatin CalciumRosuvastatin Calcium350110
Levothyroxine SodiumLevothyroxine Sodium28577
Potassium ChloridePotassium Chloride24376
LisinoprilLisinopril23877
Metoprolol SuccinateMetoprolol Succinate19857
CarvedilolCarvedilol18657
Metformin Hcl ErMetformin Hcl15841
IndapamideIndapamide13941
OmeprazoleOmeprazole13945
JardianceEmpagliflozin13235
Metformin HclMetformin Hcl13245
GabapentinGabapentin12146
Olmesartan MedoxomilOlmesartan Medoxomil11437
Duloxetine HclDuloxetine Hcl10722
Pravastatin SodiumPravastatin Sodium10736
EliquisApixaban10527
HydrochlorothiazideHydrochlorothiazide10031
SimvastatinSimvastatin9228
Tamsulosin HclTamsulosin Hcl9234
Trazodone HclTrazodone Hcl8724
EzetimibeEzetimibe8221
Fluticasone PropionateFluticasone Propionate7831
Albuterol Sulfate HfaAlbuterol Sulfate7329
AllopurinolAllopurinol7223
Pantoprazole SodiumPantoprazole Sodium7229
Metoprolol TartrateMetoprolol Tartrate6316
IrbesartanIrbesartan5914
SynthroidLevothyroxine Sodium5916
Sertraline HclSertraline Hcl5816
SpironolactoneSpironolactone5617
Diclofenac SodiumDiclofenac Sodium4913
GlipizideGlipizide4915
FurosemideFurosemide4818
JanuviaSitagliptin Phosphate48suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4713
Klor-Con M20Potassium Chloride4617
KetoconazoleKetoconazole45suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4514
TelmisartanTelmisartan4514
PregabalinPregabalin44suppressed
Escitalopram OxalateEscitalopram Oxalate4313
RybelsusSemaglutide4314
Zolpidem TartrateZolpidem Tartrate4313
Benazepril HclBenazepril Hcl4212
MounjaroTirzepatide4014
ChlorthalidoneChlorthalidone39suppressed
FamotidineFamotidine3915
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3916
ClopidogrelClopidogrel Bisulfate38suppressed
Azelastine HclAzelastine Hcl3513
MirtazapineMirtazapine3311
OzempicSemaglutide33suppressed
AtenololAtenolol31suppressed
MeloxicamMeloxicam3015
FinasterideFinasteride2911
Triamcinolone AcetonideTriamcinolone Acetonide2914
Citalopram HbrCitalopram Hydrobromide27suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl27suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog2611
Felodipine ErFelodipine24suppressed
AlprazolamAlprazolam23suppressed
ValsartanValsartan23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2220
RamiprilRamipril22suppressed
Tramadol HclTramadol Hcl22suppressed
Alendronate SodiumAlendronate Sodium21suppressed
Fluoxetine HclFluoxetine Hcl21suppressed
Ipratropium BromideIpratropium Bromide21suppressed
LovastatinLovastatin21suppressed
Montelukast SodiumMontelukast Sodium21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl20suppressed
Glipizide ErGlipizide20suppressed
TrulicityDulaglutide18suppressed
AzithromycinAzithromycin1713
Bupropion XlBupropion Hcl17suppressed
Hydralazine HclHydralazine Hcl1711
AcyclovirAcyclovir16suppressed
IbuprofenIbuprofen16suppressed
Venlafaxine Hcl ErVenlafaxine Hcl16suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride15suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
LansoprazoleLansoprazole14suppressed
Tiadylt ErDiltiazem Hcl14suppressed
XareltoRivaroxaban14suppressed
Buspirone HclBuspirone Hcl13suppressed
CelecoxibCelecoxib13suppressed
Clonidine HclClonidine Hcl13suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
MethylprednisoloneMethylprednisolone1313
Nifedipine ErNifedipine13suppressed
Terazosin HclTerazosin Hcl13suppressed
Tizanidine HclTizanidine Hcl13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
Carbidopa-LevodopaCarbidopa/Levodopa12suppressed
Donepezil HclDonepezil Hcl12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
Alfuzosin Hcl ErAlfuzosin Hcl11suppressed
Folic AcidFolic Acid11suppressed
Klor-Con M10Potassium Chloride11suppressed
LatanoprostLatanoprost11suppressed
Lithium CarbonateLithium Carbonate11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
PrednisonePrednisone11suppressed
ValacyclovirValacyclovir 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
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