Healthcare provider profile · identity verified

Michael Kazak, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Geriatric Medicine · SANTA MARIA, CA · NPI 1285732636

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 Michael Kazak, MD received $103.48 in general payments during 2025 across 4 reported records.

AstraZeneca Pharmaceuticals LP accounted for 71.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

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

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Brilinta by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 111 claims for Farxiga by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 53 claims for Jardiance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$103.48

4 reported records · 2 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $74.4471.9%32025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $29.0428.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$103.484

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
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $53.88 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $29.04 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $20.56 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
FARXIGA
farxiga
2025 Farxiga 2024 111 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 53 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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
24 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
111 19
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
53 16

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
Amlodipine BesylateAmlodipine Besylate804211
Metformin HclMetformin Hcl735208
Atorvastatin CalciumAtorvastatin Calcium685197
SimvastatinSimvastatin642168
Losartan PotassiumLosartan Potassium573158
Levothyroxine SodiumLevothyroxine Sodium531137
AlprazolamAlprazolam485107
OmeprazoleOmeprazole483126
LisinoprilLisinopril472133
GabapentinGabapentin418101
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen37876
AtenololAtenolol375100
Pioglitazone HclPioglitazone Hcl37294
FurosemideFurosemide33270
MeloxicamMeloxicam31676
Metoprolol SuccinateMetoprolol Succinate30589
Hydralazine HclHydralazine Hcl27664
GlimepirideGlimepiride25265
HydrochlorothiazideHydrochlorothiazide23363
Tamsulosin HclTamsulosin Hcl21155
FamotidineFamotidine20553
LovastatinLovastatin19850
CarvedilolCarvedilol19250
Metoprolol TartrateMetoprolol Tartrate17847
Rosuvastatin CalciumRosuvastatin Calcium17752
Pantoprazole SodiumPantoprazole Sodium17348
AzithromycinAzithromycin164133
Citalopram HbrCitalopram Hydrobromide16037
GlipizideGlipizide15445
Montelukast SodiumMontelukast Sodium14740
Sertraline HclSertraline Hcl14636
AllopurinolAllopurinol14538
Alendronate SodiumAlendronate Sodium13731
JanuviaSitagliptin Phosphate13327
TemazepamTemazepam12827
LorazepamLorazepam12735
Tramadol HclTramadol Hcl12532
Triamcinolone AcetonideTriamcinolone Acetonide11259
FarxigaDapagliflozin Propanediol11119
Albuterol Sulfate HfaAlbuterol Sulfate10837
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide10834
Meclizine HclMeclizine Hcl10743
NaproxenNaproxen10447
Pravastatin SodiumPravastatin Sodium9626
FinasterideFinasteride9422
Paroxetine HclParoxetine Hcl8920
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril8523
ClonazepamClonazepam8512
Potassium ChloridePotassium Chloride7925
MirtazapineMirtazapine7616
Buspirone HclBuspirone Hcl7314
Diltiazem 24hr Er (Cd)Diltiazem Hcl7319
Escitalopram OxalateEscitalopram Oxalate7317
Quetiapine FumarateQuetiapine Fumarate7312
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7020
XareltoRivaroxaban7015
Diclofenac SodiumDiclofenac Sodium6926
EliquisApixaban6715
EzetimibeEzetimibe6412
ClopidogrelClopidogrel Bisulfate6216
Benazepril HclBenazepril Hcl5916
CelecoxibCelecoxib5927
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog5812
Bupropion XlBupropion Hcl57suppressed
CephalexinCephalexin5649
Ciprofloxacin HclCiprofloxacin Hcl5642
JardianceEmpagliflozin5316
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5211
Fluoxetine HclFluoxetine Hcl5114
IbuprofenIbuprofen5118
Trazodone HclTrazodone Hcl5113
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip5023
Donepezil HclDonepezil Hcl5017
Isosorbide Mononitrate ErIsosorbide Mononitrate50suppressed
Doxycycline HyclateDoxycycline Hyclate4735
Zolpidem TartrateZolpidem Tartrate47suppressed
MethocarbamolMethocarbamol4618
FenofibrateFenofibrate Nanocrystallized44suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen43suppressed
OzempicSemaglutide43suppressed
ValsartanValsartan41suppressed
FluconazoleFluconazole3925
Nifedipine ErNifedipine38suppressed
Venlafaxine Hcl ErVenlafaxine Hcl38suppressed
Amitriptyline HclAmitriptyline Hcl3711
PregabalinPregabalin36suppressed
TopiramateTopiramate36suppressed
JanumetSitagliptin Phos/Metformin Hcl3511
Ropinirole HclRopinirole Hcl35suppressed
Propranolol HclPropranolol Hcl34suppressed
Amiodarone HclAmiodarone Hcl33suppressed
Duloxetine HclDuloxetine Hcl33suppressed
Bupropion Hcl SrBupropion Hcl32suppressed
Dicyclomine HclDicyclomine Hcl3211
LantusInsulin Glargine,hum.Rec.Anlog31suppressed
ColchicineColchicine3017
Memantine HclMemantine Hcl29suppressed
Metoclopramide HclMetoclopramide Hcl29suppressed
AmoxicillinAmoxicillin2828
Fluticasone PropionateFluticasone Propionate2812
SulindacSulindac2811
Terbinafine HclTerbinafine Hcl2818
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2727
Labetalol HclLabetalol Hcl27suppressed
Ondansetron HclOndansetron Hcl2611
NabumetoneNabumetone25suppressed
BrilintaTicagrelor24suppressed
HydrocortisoneHydrocortisone2415
LevofloxacinLevofloxacin2421
Ondansetron OdtOndansetron2316
PrednisonePrednisone2316
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2321
GemfibrozilGemfibrozil22suppressed
Tresiba Flextouch U-100Insulin Degludec22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
Diltiazem 24hr ErDiltiazem Hcl21suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine2114
Procto-Med HcHydrocortisone20suppressed
CarbamazepineCarbamazepine19suppressed
TelmisartanTelmisartan19suppressed
Terazosin HclTerazosin Hcl19suppressed
MethimazoleMethimazole18suppressed
NitrofurantoinNitrofurantoin Macrocrystal18suppressed
AcyclovirAcyclovir1715
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1715
OlanzapineOlanzapine17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Fenofibric AcidFenofibric Acid (Choline)16suppressed
IndomethacinIndomethacin16suppressed
Janumet XrSitagliptin Phos/Metformin Hcl16suppressed
Metformin Hcl ErMetformin Hcl16suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl16suppressed
TradjentaLinagliptin16suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Carbidopa-LevodopaCarbidopa/Levodopa14suppressed
Clindamycin HclClindamycin Hcl14suppressed
Clonidine HclClonidine Hcl14suppressed
EstradiolEstradiol14suppressed
Sildenafil CitrateSildenafil Citrate14suppressed
ValacyclovirValacyclovir Hcl1413
DutasterideDutasteride13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Glipizide ErGlipizide13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended13suppressed
RamiprilRamipril13suppressed
SynthroidLevothyroxine Sodium13suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic12suppressed
SpironolactoneSpironolactone12suppressed
SucralfateSucralfate12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
VraylarCariprazine Hcl12suppressed
Alfuzosin Hcl ErAlfuzosin Hcl11suppressed
Doxepin HclDoxepin Hcl11suppressed
Humulin RInsulin Regular, Human11suppressed
Verapamil SrVerapamil Hcl11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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 $103.48 · 4 records AstraZeneca Pharmaceuticals LP BREZTRI, FARXIGA, JARDIANCE 3
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