Healthcare provider profile · identity verified

David S Weingarten, MD

Internal Medicine · PORTLAND, OR · NPI 1871575316

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 Calcium748213
Amlodipine BesylateAmlodipine Besylate35098
Losartan PotassiumLosartan Potassium29989
LisinoprilLisinopril27881
Levothyroxine SodiumLevothyroxine Sodium22461
Metoprolol SuccinateMetoprolol Succinate18760
Tamsulosin HclTamsulosin Hcl17657
Metformin HclMetformin Hcl13734
Metformin Hcl ErMetformin Hcl13342
EliquisApixaban13131
OmeprazoleOmeprazole13144
GabapentinGabapentin12038
HydrochlorothiazideHydrochlorothiazide12035
FurosemideFurosemide10134
SimvastatinSimvastatin9826
Rosuvastatin CalciumRosuvastatin Calcium9331
Pantoprazole SodiumPantoprazole Sodium8925
Sertraline HclSertraline Hcl8420
CarvedilolCarvedilol8118
Trazodone HclTrazodone Hcl7321
Potassium ChloridePotassium Chloride6921
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6414
SpironolactoneSpironolactone6416
Alendronate SodiumAlendronate Sodium6120
AllopurinolAllopurinol6117
OzempicSemaglutide5912
AtenololAtenolol5317
ClopidogrelClopidogrel Bisulfate5217
FinasterideFinasteride5017
Escitalopram OxalateEscitalopram Oxalate4811
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen46suppressed
Humalog Kwikpen U-100Insulin Lispro45suppressed
Montelukast SodiumMontelukast Sodium4413
PrednisonePrednisone4426
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4213
ClonazepamClonazepam41suppressed
Venlafaxine Hcl ErVenlafaxine Hcl41suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4012
Tramadol HclTramadol Hcl3814
Albuterol Sulfate HfaAlbuterol Sulfate3721
Duloxetine HclDuloxetine Hcl35suppressed
Fluticasone PropionateFluticasone Propionate35suppressed
Memantine HclMemantine Hcl35suppressed
MirtazapineMirtazapine35suppressed
GlimepirideGlimepiride3412
Ultra-Fine Short Pen NeedlePen Needle, Diabetic34suppressed
Pravastatin SodiumPravastatin Sodium33suppressed
Metoprolol TartrateMetoprolol Tartrate3111
CelecoxibCelecoxib29suppressed
LorazepamLorazepam29suppressed
ChlorthalidoneChlorthalidone2811
Donepezil HclDonepezil Hcl27suppressed
XareltoRivaroxaban27suppressed
Bupropion XlBupropion Hcl26suppressed
EplerenoneEplerenone26suppressed
Buspirone HclBuspirone Hcl24suppressed
MeloxicamMeloxicam24suppressed
Warfarin SodiumWarfarin Sodium24suppressed
Zolpidem TartrateZolpidem Tartrate24suppressed
LovastatinLovastatin22suppressed
MounjaroTirzepatide22suppressed
Testosterone CypionateTestosterone Cypionate21suppressed
Benazepril HclBenazepril Hcl20suppressed
Clonidine HclClonidine Hcl20suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
GlipizideGlipizide20suppressed
FenofibrateFenofibrate19suppressed
Droplet Pen NeedlePen Needle, Diabetic18suppressed
EzetimibeEzetimibe18suppressed
JardianceEmpagliflozin18suppressed
ValacyclovirValacyclovir Hcl18suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
MyrbetriqMirabegron17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1714
TrulicityDulaglutide17suppressed
IrbesartanIrbesartan16suppressed
PaxlovidNirmatrelvir/Ritonavir1514
Propranolol Hcl ErPropranolol Hcl15suppressed
TorsemideTorsemide15suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
EstradiolEstradiol14suppressed
Paroxetine HclParoxetine Hcl14suppressed
CephalexinCephalexin13suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Clorazepate DipotassiumClorazepate Dipotassium12suppressed
Glipizide ErGlipizide12suppressed
Nifedipine ErNifedipine12suppressed
TelmisartanTelmisartan12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
RybelsusSemaglutide11suppressed

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