Healthcare provider profile · identity verified

David Lee Begert, M.D.

Family Practice · SANTA ROSA, CA · NPI 1184736159

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 Calcium432118
Rosuvastatin CalciumRosuvastatin Calcium30192
LisinoprilLisinopril25275
Amlodipine BesylateAmlodipine Besylate22064
Losartan PotassiumLosartan Potassium20567
HydrochlorothiazideHydrochlorothiazide17456
Levothyroxine SodiumLevothyroxine Sodium16442
GabapentinGabapentin16136
Tamsulosin HclTamsulosin Hcl12640
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide10727
OmeprazoleOmeprazole10334
Metformin Hcl ErMetformin Hcl10138
Fluticasone PropionateFluticasone Propionate9942
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8422
Escitalopram OxalateEscitalopram Oxalate8221
JardianceEmpagliflozin7918
Metoprolol SuccinateMetoprolol Succinate7720
AlprazolamAlprazolam7517
Sertraline HclSertraline Hcl7419
SimvastatinSimvastatin6518
Trazodone HclTrazodone Hcl6316
Pantoprazole SodiumPantoprazole Sodium6016
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5916
Albuterol Sulfate HfaAlbuterol Sulfate5626
Alendronate SodiumAlendronate Sodium5314
LorazepamLorazepam5119
Benazepril HclBenazepril Hcl49suppressed
SynthroidLevothyroxine Sodium48suppressed
Metformin HclMetformin Hcl4712
AtenololAtenolol4613
EzetimibeEzetimibe4515
AllopurinolAllopurinol4214
Bupropion XlBupropion Hcl41suppressed
Zolpidem TartrateZolpidem Tartrate3917
OzempicSemaglutide38suppressed
DiazepamDiazepam35suppressed
FamotidineFamotidine3511
Potassium ChloridePotassium Chloride34suppressed
ClonazepamClonazepam33suppressed
BaclofenBaclofen32suppressed
Sumatriptan SuccinateSumatriptan Succinate32suppressed
ValacyclovirValacyclovir Hcl3216
MirtazapineMirtazapine31suppressed
Pravastatin SodiumPravastatin Sodium3012
PregabalinPregabalin30suppressed
AzithromycinAzithromycin2925
EliquisApixaban29suppressed
CephalexinCephalexin2718
Fluoxetine HclFluoxetine Hcl27suppressed
Duloxetine HclDuloxetine Hcl25suppressed
PaxlovidNirmatrelvir/Ritonavir2525
MeloxicamMeloxicam24suppressed
NaproxenNaproxen24suppressed
RizatriptanRizatriptan Benzoate24suppressed
Donepezil HclDonepezil Hcl23suppressed
HydrocortisoneHydrocortisone22suppressed
KetoconazoleKetoconazole2116
Propranolol HclPropranolol Hcl20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1813
GlimepirideGlimepiride18suppressed
Metoprolol TartrateMetoprolol Tartrate18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
XareltoRivaroxaban18suppressed
Arnuity ElliptaFluticasone Furoate17suppressed
Tramadol HclTramadol Hcl17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1712
Buspirone HclBuspirone Hcl16suppressed
FinasterideFinasteride16suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1514
Diclofenac SodiumDiclofenac Sodium15suppressed
EstradiolEstradiol15suppressed
PrednisonePrednisone15suppressed
AcyclovirAcyclovir14suppressed
Azelastine HclAzelastine Hcl14suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate14suppressed
TemazepamTemazepam14suppressed
TrintellixVortioxetine Hydrobromide14suppressed
Warfarin SodiumWarfarin Sodium14suppressed
ClopidogrelClopidogrel Bisulfate13suppressed
Montelukast SodiumMontelukast Sodium13suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1211
Ventolin HfaAlbuterol Sulfate12suppressed
Bupropion HclBupropion Hcl11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
ColchicineColchicine11suppressed
Ondansetron HclOndansetron 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