Healthcare provider profile · identity verified

Maria Herenyiova, MD

Internal Medicine · SAN JOSE, CA · NPI 1487730909

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 Calcium391145
Losartan PotassiumLosartan Potassium24783
Amlodipine BesylateAmlodipine Besylate23194
Levothyroxine SodiumLevothyroxine Sodium21077
AtenololAtenolol15755
LisinoprilLisinopril15055
Albuterol Sulfate HfaAlbuterol Sulfate14370
AlvescoCiclesonide12458
SimvastatinSimvastatin11138
Alendronate SodiumAlendronate Sodium10541
HydrochlorothiazideHydrochlorothiazide10334
FamotidineFamotidine9843
IbuprofenIbuprofen9647
GabapentinGabapentin9541
OmeprazoleOmeprazole8635
Metformin HclMetformin Hcl8432
Metoprolol TartrateMetoprolol Tartrate8127
Fluticasone PropionateFluticasone Propionate7936
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7933
FurosemideFurosemide7633
Trazodone HclTrazodone Hcl7226
Rosuvastatin CalciumRosuvastatin Calcium5822
Tamsulosin HclTamsulosin Hcl5726
LovastatinLovastatin5319
Triamcinolone AcetonideTriamcinolone Acetonide5120
AllopurinolAllopurinol4717
Hydralazine HclHydralazine Hcl4716
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4717
OzempicSemaglutide44suppressed
Potassium ChloridePotassium Chloride4315
PrednisonePrednisone4232
Doxycycline MonohydrateDoxycycline Monohydrate3930
Glipizide ErGlipizide3814
Sertraline HclSertraline Hcl3817
Metformin Hcl ErMetformin Hcl3616
Montelukast SodiumMontelukast Sodium3514
Citalopram HbrCitalopram Hydrobromide3312
Tizanidine HclTizanidine Hcl3322
MeloxicamMeloxicam3216
AcyclovirAcyclovir3112
PradaxaDabigatran Etexilate Mesylate3111
BreynaBudesonide/Formoterol Fumarate30suppressed
Oxybutynin Chloride ErOxybutynin Chloride3014
FluconazoleFluconazole2914
Wixela InhubFluticasone Propion/Salmeterol29suppressed
Fluoxetine HclFluoxetine Hcl2811
HydrocortisoneHydrocortisone2815
Metoprolol SuccinateMetoprolol Succinate2814
Terazosin HclTerazosin Hcl28suppressed
Tramadol HclTramadol Hcl28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide27suppressed
Pantoprazole SodiumPantoprazole Sodium2615
Spiriva RespimatTiotropium Bromide2611
Ciprofloxacin HclCiprofloxacin Hcl2518
Hydroxyzine HclHydroxyzine Hcl23suppressed
AzithromycinAzithromycin2219
FluocinonideFluocinonide2212
Memantine HclMemantine Hcl22suppressed
MethocarbamolMethocarbamol21suppressed
Zolpidem TartrateZolpidem Tartrate20suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1918
Oxybutynin ChlorideOxybutynin Chloride19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Propranolol HclPropranolol Hcl19suppressed
CefadroxilCefadroxil1813
GlipizideGlipizide18suppressed
PregabalinPregabalin18suppressed
TemazepamTemazepam18suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1712
Nystatin-TriamcinoloneNystatin/Triamcinolone Acet17suppressed
Ondansetron HclOndansetron Hcl17suppressed
RizatriptanRizatriptan Benzoate17suppressed
CarvedilolCarvedilol16suppressed
Benazepril HclBenazepril Hcl15suppressed
CephalexinCephalexin1512
FinasterideFinasteride15suppressed
NaproxenNaproxen15suppressed
ScopolamineScopolamine15suppressed
Acetaminophen-CodeineAcetaminophen With Codeine14suppressed
Bupropion XlBupropion Hcl14suppressed
ColchicineColchicine14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
Venlafaxine HclVenlafaxine Hcl14suppressed
EliquisApixaban13suppressed
NabumetoneNabumetone13suppressed
AlprazolamAlprazolam12suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
NystatinNystatin12suppressed
OfloxacinOfloxacin12suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended12suppressed
TopiramateTopiramate12suppressed
AmoxicillinAmoxicillin11suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac1111
ChlorthalidoneChlorthalidone11suppressed
Humulin NInsulin Nph Human Isophane11suppressed
JardianceEmpagliflozin11suppressed
LactuloseLactulose11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim11suppressed
Victoza 2-PakLiraglutide11suppressed

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