Healthcare provider profile · identity verified

Weimin Xu, M.D.

Family Practice · DIXON, CA · NPI 1013129113

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 Calcium532187
Levothyroxine SodiumLevothyroxine Sodium27069
Losartan PotassiumLosartan Potassium27097
Amlodipine BesylateAmlodipine Besylate21976
Metformin Hcl ErMetformin Hcl21480
HydrochlorothiazideHydrochlorothiazide19776
LisinoprilLisinopril16860
Alendronate SodiumAlendronate Sodium16359
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16232
Albuterol Sulfate HfaAlbuterol Sulfate14857
AtenololAtenolol12541
FamotidineFamotidine12352
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11041
Fluticasone PropionateFluticasone Propionate10135
Tamsulosin HclTamsulosin Hcl9332
Metoprolol SuccinateMetoprolol Succinate9026
GabapentinGabapentin8336
AlvescoCiclesonide8034
Terazosin HclTerazosin Hcl7823
OmeprazoleOmeprazole7327
Trazodone HclTrazodone Hcl7330
SimvastatinSimvastatin7223
Metformin HclMetformin Hcl7125
AllopurinolAllopurinol6823
Acetaminophen-CodeineAcetaminophen With Codeine6715
Pantoprazole SodiumPantoprazole Sodium6620
Triamcinolone AcetonideTriamcinolone Acetonide5932
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5821
Montelukast SodiumMontelukast Sodium5721
IbuprofenIbuprofen5415
Metoprolol TartrateMetoprolol Tartrate5317
Potassium ChloridePotassium Chloride5320
FurosemideFurosemide4920
MeloxicamMeloxicam4518
Ropinirole HclRopinirole Hcl4418
Zolpidem TartrateZolpidem Tartrate37suppressed
GlipizideGlipizide3412
JardianceEmpagliflozin3112
Sertraline HclSertraline Hcl31suppressed
Fluoxetine HclFluoxetine Hcl3012
Glipizide ErGlipizide29suppressed
Morphine Sulfate ErMorphine Sulfate28suppressed
FinasterideFinasteride27suppressed
Humulin RInsulin Regular, Human27suppressed
PrednisonePrednisone2717
CephalexinCephalexin2523
Duloxetine HclDuloxetine Hcl25suppressed
TemazepamTemazepam25suppressed
AlprazolamAlprazolam23suppressed
MupirocinMupirocin2314
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen23suppressed
Hydroxyzine HclHydroxyzine Hcl22suppressed
LovastatinLovastatin21suppressed
Clobetasol PropionateClobetasol Propionate2012
Propranolol HclPropranolol Hcl20suppressed
AmoxicillinAmoxicillin1815
DiazepamDiazepam18suppressed
HydrocortisoneHydrocortisone1813
OzempicSemaglutide17suppressed
Spiriva RespimatTiotropium Bromide17suppressed
SpironolactoneSpironolactone17suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid17suppressed
CarvedilolCarvedilol16suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1515
AzithromycinAzithromycin1512
GlimepirideGlimepiride15suppressed
Hydralazine HclHydralazine Hcl15suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn15suppressed
LatanoprostLatanoprost15suppressed
PradaxaDabigatran Etexilate Mesylate15suppressed
Bisoprolol FumarateBisoprolol Fumarate14suppressed
ColchicineColchicine14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
TacrolimusTacrolimus14suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Donepezil HclDonepezil Hcl13suppressed
Oxycodone HclOxycodone Hcl13suppressed
CelecoxibCelecoxib12suppressed
Clonidine HclClonidine Hcl12suppressed
FenofibrateFenofibrate12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
TenivacTetanus-Diphtheria Toxoids/Pf1212
AnastrozoleAnastrozole11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1111
Escitalopram OxalateEscitalopram Oxalate11suppressed
FluocinonideFluocinonide11suppressed
MirtazapineMirtazapine11suppressed
Nortriptyline HclNortriptyline Hcl11suppressed
PrimidonePrimidone11suppressed
Rosuvastatin CalciumRosuvastatin Calcium11suppressed
TadalafilTadalafil11suppressed
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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