Healthcare provider profile · identity verified

Ian Diaz, MD

Family Practice · SAN DIEGO, CA · NPI 1023038411

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 Calcium21469
Levothyroxine SodiumLevothyroxine Sodium18864
Losartan PotassiumLosartan Potassium17656
Rosuvastatin CalciumRosuvastatin Calcium14048
Amlodipine BesylateAmlodipine Besylate12846
GabapentinGabapentin11728
OmeprazoleOmeprazole9136
LisinoprilLisinopril7525
Trazodone HclTrazodone Hcl7126
Metformin HclMetformin Hcl6624
Oxycodone HclOxycodone Hcl64suppressed
Tamsulosin HclTamsulosin Hcl6321
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6012
HydrochlorothiazideHydrochlorothiazide5518
Metoprolol SuccinateMetoprolol Succinate4521
OzempicSemaglutide40suppressed
TrulicityDulaglutide38suppressed
EliquisApixaban3711
Albuterol Sulfate HfaAlbuterol Sulfate3616
FinasterideFinasteride3312
PregabalinPregabalin33suppressed
DiazepamDiazepam32suppressed
Alendronate SodiumAlendronate Sodium3112
Bupropion XlBupropion Hcl3111
Pravastatin SodiumPravastatin Sodium31suppressed
FamotidineFamotidine29suppressed
LorazepamLorazepam29suppressed
Metformin Hcl ErMetformin Hcl2814
Metoprolol TartrateMetoprolol Tartrate28suppressed
Pantoprazole SodiumPantoprazole Sodium2812
AlprazolamAlprazolam27suppressed
Escitalopram OxalateEscitalopram Oxalate2711
Sertraline HclSertraline Hcl27suppressed
JardianceEmpagliflozin26suppressed
CelecoxibCelecoxib25suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
Fluticasone PropionateFluticasone Propionate2417
AtenololAtenolol23suppressed
BuprenorphineBuprenorphine23suppressed
Tramadol HclTramadol Hcl23suppressed
Benazepril HclBenazepril Hcl22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
SynthroidLevothyroxine Sodium22suppressed
ChlorthalidoneChlorthalidone21suppressed
ValsartanValsartan21suppressed
EzetimibeEzetimibe20suppressed
FurosemideFurosemide20suppressed
ValacyclovirValacyclovir Hcl20suppressed
AllopurinolAllopurinol19suppressed
MeloxicamMeloxicam19suppressed
Nifedipine ErNifedipine19suppressed
Ondansetron OdtOndansetron19suppressed
CarvedilolCarvedilol17suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen17suppressed
Ropinirole HclRopinirole Hcl16suppressed
AcyclovirAcyclovir15suppressed
SimvastatinSimvastatin15suppressed
TestosteroneTestosterone15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
AzithromycinAzithromycin14suppressed
Duloxetine HclDuloxetine Hcl14suppressed
SpironolactoneSpironolactone14suppressed
TobramycinTobramycin14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
ClonazepamClonazepam13suppressed
MethocarbamolMethocarbamol13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
MounjaroTirzepatide13suppressed
Azelastine HclAzelastine Hcl12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Diltiazem 24hr ErDiltiazem Hcl12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
JanuviaSitagliptin Phosphate12suppressed
RizatriptanRizatriptan Benzoate12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
BaclofenBaclofen11suppressed
CephalexinCephalexin11suppressed
ColchicineColchicine11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
KetoconazoleKetoconazole11suppressed

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