Healthcare provider profile · identity verified

Randolph Clarke, M.D.

Family Practice · ANTIOCH, CA · NPI 1538187612

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 Calcium23668
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen19937
Levothyroxine SodiumLevothyroxine Sodium18345
Amlodipine BesylateAmlodipine Besylate15544
Albuterol Sulfate HfaAlbuterol Sulfate15438
Metformin HclMetformin Hcl14037
Pantoprazole SodiumPantoprazole Sodium12938
Metoprolol SuccinateMetoprolol Succinate12433
Losartan PotassiumLosartan Potassium11731
LisinoprilLisinopril10729
Tamsulosin HclTamsulosin Hcl10627
Rosuvastatin CalciumRosuvastatin Calcium10229
Zolpidem TartrateZolpidem Tartrate9518
GabapentinGabapentin7020
Glipizide ErGlipizide6814
AlprazolamAlprazolam6714
SimvastatinSimvastatin6719
HydrochlorothiazideHydrochlorothiazide6116
Escitalopram OxalateEscitalopram Oxalate5714
CarvedilolCarvedilol5515
IbuprofenIbuprofen5315
OmeprazoleOmeprazole5217
FamotidineFamotidine5112
LorazepamLorazepam5112
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen5114
EliquisApixaban50suppressed
OzempicSemaglutide50suppressed
Fluticasone PropionateFluticasone Propionate4914
ClonazepamClonazepam46suppressed
Oxycodone HclOxycodone Hcl46suppressed
Montelukast SodiumMontelukast Sodium4513
Trazodone HclTrazodone Hcl4311
Amitriptyline HclAmitriptyline Hcl41suppressed
Buspirone HclBuspirone Hcl41suppressed
FurosemideFurosemide4013
Potassium ChloridePotassium Chloride3914
FinasterideFinasteride36suppressed
JanuviaSitagliptin Phosphate35suppressed
DiazepamDiazepam34suppressed
Duloxetine HclDuloxetine Hcl34suppressed
LovastatinLovastatin34suppressed
Metoprolol TartrateMetoprolol Tartrate34suppressed
Tramadol HclTramadol Hcl34suppressed
Hydroxyzine HclHydroxyzine Hcl32suppressed
Vitamin D2Ergocalciferol (Vitamin D2)30suppressed
ChlorthalidoneChlorthalidone29suppressed
Triamcinolone AcetonideTriamcinolone Acetonide29suppressed
AzithromycinAzithromycin2615
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine26suppressed
MinoxidilMinoxidil26suppressed
Pioglitazone HclPioglitazone Hcl26suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
MirtazapineMirtazapine25suppressed
Paroxetine HclParoxetine Hcl25suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl24suppressed
Zolpidem Tartrate ErZolpidem Tartrate24suppressed
Ondansetron OdtOndansetron23suppressed
Sertraline HclSertraline Hcl23suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
AllopurinolAllopurinol21suppressed
Tizanidine HclTizanidine Hcl21suppressed
Benazepril HclBenazepril Hcl20suppressed
CephalexinCephalexin2014
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
Ondansetron HclOndansetron Hcl20suppressed
Diclofenac SodiumDiclofenac Sodium19suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide18suppressed
Clonidine HclClonidine Hcl18suppressed
FarxigaDapagliflozin Propanediol18suppressed
Terazosin HclTerazosin Hcl18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
BaclofenBaclofen17suppressed
Hydralazine HclHydralazine Hcl17suppressed
JardianceEmpagliflozin17suppressed
Morphine Sulfate ErMorphine Sulfate17suppressed
Alfuzosin Hcl ErAlfuzosin Hcl16suppressed
AtenololAtenolol16suppressed
Clobetasol PropionateClobetasol Propionate15suppressed
GlipizideGlipizide15suppressed
OlanzapineOlanzapine15suppressed
LantusInsulin Glargine,hum.Rec.Anlog14suppressed
NaproxenNaproxen14suppressed
NystatinNystatin14suppressed
PaxlovidNirmatrelvir/Ritonavir1413
SynthroidLevothyroxine Sodium14suppressed
IbuIbuprofen13suppressed
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha13suppressed
PrednisonePrednisone13suppressed
TemazepamTemazepam13suppressed
LamotrigineLamotrigine12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
XareltoRivaroxaban12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
ClopidogrelClopidogrel Bisulfate11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
GlimepirideGlimepiride11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
MethimazoleMethimazole11suppressed
MyrbetriqMirabegron11suppressed
SpironolactoneSpironolactone11suppressed

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