Healthcare provider profile · identity verified

Nathan R Weldon, M.D.

Family Practice · BANNING, CA · NPI 1427197235

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 Calcium441180
Amlodipine BesylateAmlodipine Besylate23693
LisinoprilLisinopril20780
Levothyroxine SodiumLevothyroxine Sodium13750
Rosuvastatin CalciumRosuvastatin Calcium13655
Losartan PotassiumLosartan Potassium13158
Albuterol Sulfate HfaAlbuterol Sulfate12056
HydrochlorothiazideHydrochlorothiazide11947
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11640
Metoprolol TartrateMetoprolol Tartrate11338
GlipizideGlipizide10838
OmeprazoleOmeprazole9645
Bisoprolol FumarateBisoprolol Fumarate9339
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9230
Pantoprazole SodiumPantoprazole Sodium9226
Metformin Hcl ErMetformin Hcl9038
Metformin HclMetformin Hcl8334
SimvastatinSimvastatin8030
PradaxaDabigatran Etexilate Mesylate7517
AtenololAtenolol7325
JardianceEmpagliflozin7326
Hydralazine HclHydralazine Hcl7117
Potassium ChloridePotassium Chloride6934
Terazosin HclTerazosin Hcl6826
GabapentinGabapentin6529
Humulin NInsulin Nph Human Isophane6321
Tamsulosin HclTamsulosin Hcl6328
FurosemideFurosemide6024
Nano 2nd Gen Pen NeedlePen Needle, Diabetic5520
Alendronate SodiumAlendronate Sodium4819
IbuprofenIbuprofen4820
MeloxicamMeloxicam4317
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml4313
ClopidogrelClopidogrel Bisulfate4118
Trazodone HclTrazodone Hcl3917
Montelukast SodiumMontelukast Sodium3712
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen33suppressed
FinasterideFinasteride3115
Veo Insulin SyringeSyringe And Needle,insulin,1ml3111
CarvedilolCarvedilol3013
Humulin RInsulin Regular, Human30suppressed
AllopurinolAllopurinol2912
Tramadol HclTramadol Hcl29suppressed
AzithromycinAzithromycin2827
Spiriva RespimatTiotropium Bromide28suppressed
LactuloseLactulose27suppressed
Wixela InhubFluticasone Propion/Salmeterol27suppressed
Humulin N KwikpenInsulin Nph Human Isophane25suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate25suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
Morphine Sulfate ErMorphine Sulfate22suppressed
Benazepril HclBenazepril Hcl20suppressed
Humulin 70/30 KwikpenInsulin Nph Hum/Reg Insulin Hm20suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2012
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1919
CephalexinCephalexin1917
PrednisonePrednisone1917
Clobetasol PropionateClobetasol Propionate18suppressed
ColchicineColchicine17suppressed
EzetimibeEzetimibe17suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
Glipizide-MetforminGlipizide/Metformin Hcl17suppressed
MirtazapineMirtazapine16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid15suppressed
Fluticasone PropionateFluticasone Propionate14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
Duloxetine HclDuloxetine Hcl13suppressed
FamotidineFamotidine13suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
ValsartanValsartan11suppressed
Veo Insulin SyringeSyrge-Ndl,ins 0.3 Ml Half Mark11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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