Healthcare provider profile · identity verified

William N Tucker, M.D.

Family Practice · AUBURN, CA · NPI 1174622708

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 Calcium32894
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen26944
Levothyroxine SodiumLevothyroxine Sodium23362
Losartan PotassiumLosartan Potassium22968
Amlodipine BesylateAmlodipine Besylate14744
GabapentinGabapentin11737
HydrochlorothiazideHydrochlorothiazide11434
OmeprazoleOmeprazole11133
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide10929
Escitalopram OxalateEscitalopram Oxalate10327
LisinoprilLisinopril10334
Tamsulosin HclTamsulosin Hcl10130
SimvastatinSimvastatin9725
IbuprofenIbuprofen9326
Zolpidem TartrateZolpidem Tartrate9023
Metformin HclMetformin Hcl8424
AlprazolamAlprazolam7116
Fluticasone PropionateFluticasone Propionate6928
Metoprolol SuccinateMetoprolol Succinate6823
Pantoprazole SodiumPantoprazole Sodium6621
Tramadol HclTramadol Hcl6515
Potassium ChloridePotassium Chloride6321
Albuterol Sulfate HfaAlbuterol Sulfate5924
FurosemideFurosemide5419
Cyclobenzaprine HclCyclobenzaprine Hcl4911
AtenololAtenolol4413
Rosuvastatin CalciumRosuvastatin Calcium4416
FamotidineFamotidine4211
EliquisApixaban4011
AllopurinolAllopurinol39suppressed
Citalopram HbrCitalopram Hydrobromide3812
EstradiolEstradiol3612
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide35suppressed
Sertraline HclSertraline Hcl3511
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen34suppressed
Bupropion XlBupropion Hcl33suppressed
Metoprolol TartrateMetoprolol Tartrate33suppressed
Trazodone HclTrazodone Hcl3311
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid33suppressed
FinasterideFinasteride32suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog32suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3012
AzithromycinAzithromycin2927
JardianceEmpagliflozin29suppressed
SynthroidLevothyroxine Sodium29suppressed
MeloxicamMeloxicam28suppressed
OzempicSemaglutide28suppressed
ValacyclovirValacyclovir Hcl28suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
TrulicityDulaglutide27suppressed
Ondansetron OdtOndansetron2613
Montelukast SodiumMontelukast Sodium25suppressed
CarvedilolCarvedilol24suppressed
Sumatriptan SuccinateSumatriptan Succinate24suppressed
Metformin Hcl ErMetformin Hcl22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Hydralazine HclHydralazine Hcl21suppressed
SpironolactoneSpironolactone21suppressed
ValsartanValsartan21suppressed
Duloxetine HclDuloxetine Hcl20suppressed
GlipizideGlipizide19suppressed
AcyclovirAcyclovir18suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl18suppressed
EzetimibeEzetimibe16suppressed
FluocinonideFluocinonide16suppressed
CephalexinCephalexin1513
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine15suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Humalog Kwikpen U-100Insulin Lispro15suppressed
Hydromorphone HclHydromorphone Hcl15suppressed
LovastatinLovastatin15suppressed
Pravastatin SodiumPravastatin Sodium15suppressed
PrednisonePrednisone1513
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
CarisoprodolCarisoprodol13suppressed
HydrocortisoneHydrocortisone13suppressed
Sildenafil CitrateSildenafil Citrate13suppressed
NaproxenNaproxen12suppressed
Oxycodone HclOxycodone Hcl12suppressed
OxycontinOxycodone Hcl12suppressed
ProgesteroneProgesterone, Micronized12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
TemazepamTemazepam12suppressed
Bupropion Hcl SrBupropion Hcl11suppressed
FenofibrateFenofibrate11suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed
Hydroxyzine PamoateHydroxyzine Pamoate11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
XareltoRivaroxaban11suppressed

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