Healthcare provider profile · identity verified

Diane Gonzalez, MD

Family Practice · SOUTH SAN FRANCISCO, CA · NPI 1295813772

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 Calcium418153
Losartan PotassiumLosartan Potassium308105
Amlodipine BesylateAmlodipine Besylate278102
LisinoprilLisinopril23582
Levothyroxine SodiumLevothyroxine Sodium17462
HydrochlorothiazideHydrochlorothiazide14653
Metoprolol SuccinateMetoprolol Succinate10937
Metformin HclMetformin Hcl10543
OmeprazoleOmeprazole10344
Metoprolol TartrateMetoprolol Tartrate10243
SimvastatinSimvastatin9740
Alendronate SodiumAlendronate Sodium9536
FamotidineFamotidine8645
Trazodone HclTrazodone Hcl7527
Albuterol Sulfate HfaAlbuterol Sulfate7440
GabapentinGabapentin7028
Pantoprazole SodiumPantoprazole Sodium7037
GlipizideGlipizide6724
Tamsulosin HclTamsulosin Hcl6728
Fluticasone PropionateFluticasone Propionate6235
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen56suppressed
FinasterideFinasteride5522
Metformin Hcl ErMetformin Hcl5021
AtenololAtenolol4920
Morphine Sulfate ErMorphine Sulfate47suppressed
Terazosin HclTerazosin Hcl4518
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4021
Pravastatin SodiumPravastatin Sodium3814
FurosemideFurosemide3521
Hydralazine HclHydralazine Hcl3516
LovastatinLovastatin3512
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3413
HydrocortisoneHydrocortisone3021
Cefpodoxime ProxetilCefpodoxime Proxetil2921
Sertraline HclSertraline Hcl2911
CarvedilolCarvedilol2713
Citalopram HbrCitalopram Hydrobromide27suppressed
OzempicSemaglutide27suppressed
Clobetasol PropionateClobetasol Propionate26suppressed
Doxycycline MonohydrateDoxycycline Monohydrate2624
Humulin NInsulin Nph Human Isophane26suppressed
LorazepamLorazepam2514
MirtazapineMirtazapine2511
Triamcinolone AcetonideTriamcinolone Acetonide2515
AllopurinolAllopurinol2214
FluocinonideFluocinonide22suppressed
Propranolol HclPropranolol Hcl22suppressed
Tramadol HclTramadol Hcl2112
Rosuvastatin CalciumRosuvastatin Calcium19suppressed
Alclometasone DipropionateAlclometasone Dipropionate18suppressed
Duloxetine HclDuloxetine Hcl17suppressed
IbuprofenIbuprofen1715
Tizanidine HclTizanidine Hcl1712
Warfarin SodiumWarfarin Sodium17suppressed
ClopidogrelClopidogrel Bisulfate16suppressed
PradaxaDabigatran Etexilate Mesylate16suppressed
ColchicineColchicine15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Bisoprolol FumarateBisoprolol Fumarate14suppressed
CefadroxilCefadroxil1413
Fluoxetine HclFluoxetine Hcl14suppressed
LactuloseLactulose14suppressed
SpironolactoneSpironolactone14suppressed
AlvescoCiclesonide13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1211
BreynaBudesonide/Formoterol Fumarate12suppressed
CiclopiroxCiclopirox12suppressed
JardianceEmpagliflozin12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
Veo Insulin SyringeSyringe And Needle,insulin,1ml12suppressed
Econazole NitrateEconazole Nitrate11suppressed
Escitalopram OxalateEscitalopram Oxalate11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed
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