Healthcare provider profile · identity verified

Larry Marianella, M.D.

Internal Medicine · SANTA ROSA, CA · NPI 1144257486

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 Calcium23650
OmeprazoleOmeprazole14033
GabapentinGabapentin13829
Levothyroxine SodiumLevothyroxine Sodium13135
Amlodipine BesylateAmlodipine Besylate12032
Benazepril HclBenazepril Hcl12031
Quetiapine FumarateQuetiapine Fumarate10827
Tamsulosin HclTamsulosin Hcl10729
Sertraline HclSertraline Hcl10324
Metformin HclMetformin Hcl10127
FurosemideFurosemide9326
Potassium ChloridePotassium Chloride9019
Losartan PotassiumLosartan Potassium8621
Divalproex SodiumDivalproex Sodium7911
Trazodone HclTrazodone Hcl7616
CelecoxibCelecoxib73suppressed
Metoprolol SuccinateMetoprolol Succinate7325
JardianceEmpagliflozin71suppressed
Memantine HclMemantine Hcl7117
RisperidoneRisperidone68suppressed
Duloxetine HclDuloxetine Hcl5714
Fludrocortisone AcetateFludrocortisone Acetate5414
LisinoprilLisinopril5216
LevetiracetamLevetiracetam5111
SimvastatinSimvastatin5116
OlanzapineOlanzapine49suppressed
AlprazolamAlprazolam4719
Pantoprazole SodiumPantoprazole Sodium4716
LovastatinLovastatin4614
Oxybutynin ChlorideOxybutynin Chloride46suppressed
HydrocortisoneHydrocortisone40suppressed
AllopurinolAllopurinol39suppressed
Metoprolol TartrateMetoprolol Tartrate3813
SpironolactoneSpironolactone38suppressed
GlipizideGlipizide36suppressed
AripiprazoleAripiprazole3214
Montelukast SodiumMontelukast Sodium32suppressed
XareltoRivaroxaban3112
Zolpidem TartrateZolpidem Tartrate3114
EliquisApixaban30suppressed
Sumatriptan SuccinateSumatriptan Succinate29suppressed
IbuprofenIbuprofen28suppressed
ClonazepamClonazepam27suppressed
Fluoxetine HclFluoxetine Hcl27suppressed
Albuterol Sulfate HfaAlbuterol Sulfate26suppressed
AtenololAtenolol26suppressed
Fluticasone PropionateFluticasone Propionate23suppressed
ClopidogrelClopidogrel Bisulfate22suppressed
EzetimibeEzetimibe22suppressed
HydrochlorothiazideHydrochlorothiazide22suppressed
MeloxicamMeloxicam22suppressed
LatanoprostLatanoprost21suppressed
NystatinNystatin21suppressed
Oxybutynin Chloride ErOxybutynin Chloride21suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended20suppressed
Rosuvastatin CalciumRosuvastatin Calcium20suppressed
CarvedilolCarvedilol19suppressed
LamotrigineLamotrigine19suppressed
LinzessLinaclotide19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide19suppressed
LantusInsulin Glargine,hum.Rec.Anlog18suppressed
NaproxenNaproxen18suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
Donepezil HclDonepezil Hcl17suppressed
LorazepamLorazepam17suppressed
Bethanechol ChlorideBethanechol Chloride16suppressed
CarbamazepineCarbamazepine16suppressed
Ropinirole HclRopinirole Hcl16suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter16suppressed
Naltrexone HclNaltrexone Hcl15suppressed
Propranolol HclPropranolol Hcl15suppressed
Amiodarone HclAmiodarone Hcl14suppressed
JanuviaSitagliptin Phosphate14suppressed
Metoclopramide HclMetoclopramide Hcl14suppressed
PrednisonePrednisone14suppressed
Dexlansoprazole DrDexlansoprazole13suppressed
EntrestoSacubitril/Valsartan13suppressed
Escitalopram OxalateEscitalopram Oxalate13suppressed
GlimepirideGlimepiride13suppressed
Hydralazine HclHydralazine Hcl13suppressed
DigoxinDigoxin12suppressed
Divalproex Sodium ErDivalproex Sodium12suppressed
Glipizide ErGlipizide12suppressed
Isosorbide DinitrateIsosorbide Dinitrate12suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
SynthroidLevothyroxine Sodium12suppressed
Bupropion XlBupropion Hcl11suppressed
DiazepamDiazepam11suppressed
FamotidineFamotidine11suppressed
HaloperidolHaloperidol11suppressed

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