Healthcare provider profile · identity verified

Benjamin Maring, M.D.

Internal Medicine · OAKLAND, CA · NPI 1043585219

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 Calcium448167
Amlodipine BesylateAmlodipine Besylate17570
Losartan PotassiumLosartan Potassium16462
Levothyroxine SodiumLevothyroxine Sodium14650
GabapentinGabapentin13144
LisinoprilLisinopril12245
Pantoprazole SodiumPantoprazole Sodium11341
Tamsulosin HclTamsulosin Hcl9943
FurosemideFurosemide9837
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9329
Alendronate SodiumAlendronate Sodium9133
Albuterol Sulfate HfaAlbuterol Sulfate8847
FamotidineFamotidine8737
SimvastatinSimvastatin8633
Fluticasone PropionateFluticasone Propionate8233
Trazodone HclTrazodone Hcl7633
Metoprolol TartrateMetoprolol Tartrate7531
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7026
Metformin Hcl ErMetformin Hcl7033
Metoprolol SuccinateMetoprolol Succinate7024
HydrochlorothiazideHydrochlorothiazide6931
AllopurinolAllopurinol5718
LorazepamLorazepam5321
AtenololAtenolol5123
MirtazapineMirtazapine5116
Rosuvastatin CalciumRosuvastatin Calcium5121
Triamcinolone AcetonideTriamcinolone Acetonide4927
Zolpidem TartrateZolpidem Tartrate4815
Metformin HclMetformin Hcl4613
JardianceEmpagliflozin4518
OzempicSemaglutide44suppressed
Wixela InhubFluticasone Propion/Salmeterol4413
Sertraline HclSertraline Hcl4217
AcyclovirAcyclovir4116
Escitalopram OxalateEscitalopram Oxalate4114
FluocinonideFluocinonide4023
SpironolactoneSpironolactone4018
OmeprazoleOmeprazole3920
Terazosin HclTerazosin Hcl3915
AlvescoCiclesonide3824
Ipratropium BromideIpratropium Bromide3812
Oxycodone HclOxycodone Hcl3711
PradaxaDabigatran Etexilate Mesylate3516
FinasterideFinasteride3313
IbuprofenIbuprofen3216
Duloxetine HclDuloxetine Hcl3113
TemazepamTemazepam31suppressed
Bupropion XlBupropion Hcl30suppressed
ClopidogrelClopidogrel Bisulfate3011
Tizanidine HclTizanidine Hcl3019
CarvedilolCarvedilol2812
GlipizideGlipizide2812
Fluoxetine HclFluoxetine Hcl27suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2711
Montelukast SodiumMontelukast Sodium2712
ChlorthalidoneChlorthalidone25suppressed
RisperidoneRisperidone25suppressed
ClonazepamClonazepam24suppressed
Spiriva RespimatTiotropium Bromide2411
DexamethasoneDexamethasone23suppressed
PaxlovidNirmatrelvir/Ritonavir2323
Ibandronate SodiumIbandronate Sodium22suppressed
BaclofenBaclofen2112
ValacyclovirValacyclovir Hcl21suppressed
Potassium ChloridePotassium Chloride20suppressed
PrednisonePrednisone2012
ColchicineColchicine19suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1919
Naltrexone HclNaltrexone Hcl19suppressed
Hydromorphone HclHydromorphone Hcl18suppressed
LovastatinLovastatin18suppressed
MeloxicamMeloxicam18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1715
Donepezil HclDonepezil Hcl17suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1713
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1616
BumetanideBumetanide16suppressed
CefadroxilCefadroxil1615
Citalopram HbrCitalopram Hydrobromide16suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine16suppressed
NaproxenNaproxen16suppressed
Clobetasol PropionateClobetasol Propionate15suppressed
DiazepamDiazepam15suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
EliquisApixaban15suppressed
FlunisolideFlunisolide15suppressed
Glipizide ErGlipizide15suppressed
LevetiracetamLevetiracetam15suppressed
AlprazolamAlprazolam14suppressed
AmoxicillinAmoxicillin14suppressed
BreynaBudesonide/Formoterol Fumarate14suppressed
EzetimibeEzetimibe14suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen14suppressed
TestosteroneTestosterone14suppressed
TopiramateTopiramate14suppressed
Armour ThyroidThyroid,pork13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine12suppressed
HydrocortisoneHydrocortisone12suppressed
LactuloseLactulose12suppressed
CelecoxibCelecoxib11suppressed
Chlorhexidine GluconateChlorhexidine Gluconate11suppressed
PregabalinPregabalin11suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic11suppressed

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