Healthcare provider profile · identity verified

Ivan Diaz, MD

Allopathic & Osteopathic Physicians|Family Medicine · WEEKI WACHEE, FL · NPI 1972575389

Profile state: payments and partd 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

CMS Open Payments records show Ivan Diaz, MD received $63.69 in general payments during 2025 across 4 reported records.

PFIZER INC. accounted for 49.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Paxlovid.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 120 claims for Eliquis by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Paxlovid by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$63.69

4 reported records · 3 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
PFIZER INC. Unresolved — no canonical attribution shown $31.4749.4%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $16.1325.3%12025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $16.0925.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$63.694

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $16.13 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $16.13 1 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $16.09 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $15.81 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $15.66 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $15.66 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
ELIQUIS
eliquis
2025 Eliquis 2024 120 exact normalized Medicare Part D
PAXLOVID
paxlovid
2025 Paxlovid 2024 14 exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
120 27
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
14 14

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 Calcium537154
Levothyroxine SodiumLevothyroxine Sodium361117
LisinoprilLisinopril356117
Rosuvastatin CalciumRosuvastatin Calcium339112
Amlodipine BesylateAmlodipine Besylate297109
OmeprazoleOmeprazole27992
Losartan PotassiumLosartan Potassium23576
Pantoprazole SodiumPantoprazole Sodium22575
Metformin HclMetformin Hcl22374
Metoprolol TartrateMetoprolol Tartrate20773
AlprazolamAlprazolam18749
FurosemideFurosemide18250
ClopidogrelClopidogrel Bisulfate14946
GabapentinGabapentin14650
MeloxicamMeloxicam12853
SimvastatinSimvastatin12637
Potassium ChloridePotassium Chloride12331
Tamsulosin HclTamsulosin Hcl12346
EliquisApixaban12027
Metoprolol SuccinateMetoprolol Succinate10734
HydrochlorothiazideHydrochlorothiazide10432
GlipizideGlipizide10228
Albuterol Sulfate HfaAlbuterol Sulfate10037
Alendronate SodiumAlendronate Sodium9828
Sertraline HclSertraline Hcl9232
AllopurinolAllopurinol8827
Montelukast SodiumMontelukast Sodium8627
AtenololAtenolol8524
GlimepirideGlimepiride8227
Pioglitazone HclPioglitazone Hcl8221
Trazodone HclTrazodone Hcl8228
LovastatinLovastatin8025
PrednisonePrednisone7562
Buspirone HclBuspirone Hcl7420
FamotidineFamotidine7222
Zolpidem TartrateZolpidem Tartrate7119
Duloxetine HclDuloxetine Hcl6815
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst6752
Pravastatin SodiumPravastatin Sodium6623
FinasterideFinasteride6522
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6217
CarvedilolCarvedilol6119
Escitalopram OxalateEscitalopram Oxalate5915
TemazepamTemazepam58suppressed
LorazepamLorazepam5317
CephalexinCephalexin5037
Citalopram HbrCitalopram Hydrobromide5015
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4948
Enalapril MaleateEnalapril Maleate4812
Warfarin SodiumWarfarin Sodium4712
Fluticasone PropionateFluticasone Propionate4219
Fluticasone-SalmeterolFluticasone Propion/Salmeterol3913
Isosorbide Mononitrate ErIsosorbide Mononitrate3812
Ropinirole HclRopinirole Hcl37suppressed
SpironolactoneSpironolactone36suppressed
Benazepril HclBenazepril Hcl35suppressed
IbuprofenIbuprofen3515
Meclizine HclMeclizine Hcl3315
EzetimibeEzetimibe32suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog32suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3211
OzempicSemaglutide32suppressed
Quetiapine FumarateQuetiapine Fumarate32suppressed
Diclofenac SodiumDiclofenac Sodium3113
Doxazosin MesylateDoxazosin Mesylate31suppressed
JanuviaSitagliptin Phosphate30suppressed
Ondansetron HclOndansetron Hcl2916
Fluoxetine HclFluoxetine Hcl27suppressed
Nifedipine ErNifedipine27suppressed
Sildenafil CitrateSildenafil Citrate27suppressed
Venlafaxine HclVenlafaxine Hcl25suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
FenofibrateFenofibrate24suppressed
Metformin Hcl ErMetformin Hcl24suppressed
Tizanidine HclTizanidine Hcl24suppressed
Donepezil HclDonepezil Hcl2312
Hydralazine HclHydralazine Hcl2312
NitroglycerinNitroglycerin2311
Oxybutynin ChlorideOxybutynin Chloride22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Bupropion Hcl SrBupropion Hcl21suppressed
Clonidine HclClonidine Hcl21suppressed
Levemir FlexpenInsulin Detemir21suppressed
ValsartanValsartan21suppressed
AzithromycinAzithromycin2017
DiazepamDiazepam2014
Hydroxyzine HclHydroxyzine Hcl20suppressed
Oxybutynin Chloride ErOxybutynin Chloride20suppressed
Testosterone CypionateTestosterone Cypionate20suppressed
Ciprofloxacin HclCiprofloxacin Hcl1917
TadalafilTadalafil19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1912
Vitamin D2Ergocalciferol (Vitamin D2)19suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium18suppressed
JardianceEmpagliflozin18suppressed
Tramadol HclTramadol Hcl1814
Cyclobenzaprine HclCyclobenzaprine Hcl17suppressed
Labetalol HclLabetalol Hcl17suppressed
Propranolol HclPropranolol Hcl17suppressed
SucralfateSucralfate17suppressed
BaclofenBaclofen16suppressed
BumetanideBumetanide16suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate16suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended16suppressed
RamiprilRamipril16suppressed
SynthroidLevothyroxine Sodium16suppressed
Diltiazem HclDiltiazem Hcl15suppressed
LatanoprostLatanoprost15suppressed
ChlorthalidoneChlorthalidone14suppressed
IrbesartanIrbesartan14suppressed
NitrofurantoinNitrofurantoin Macrocrystal14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
TorsemideTorsemide14suppressed
DigoxinDigoxin13suppressed
Doxycycline HyclateDoxycycline Hyclate1312
LevofloxacinLevofloxacin1313
Novolog FlexpenInsulin Aspart13suppressed
Terazosin HclTerazosin Hcl13suppressed
BreynaBudesonide/Formoterol Fumarate12suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12suppressed
EnuloseLactulose12suppressed
EstradiolEstradiol12suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
EszopicloneEszopiclone11suppressed
Venlafaxine Hcl ErVenlafaxine Hcl11suppressed
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 $63.69 · 4 records PFIZER INC. AREXVY, ELIQUIS, NURTEC ODT, PAXLOVID, TRELEGY ELLIPTA, ZENPEP 2
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