Healthcare provider profile · identity verified

Gregory L Hazle, MD

Family Practice · GRAND RAPIDS, MI · NPI 1417995408

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 Calcium642193
Metoprolol SuccinateMetoprolol Succinate401112
Levothyroxine SodiumLevothyroxine Sodium377108
LisinoprilLisinopril376111
OmeprazoleOmeprazole333102
Amlodipine BesylateAmlodipine Besylate31488
Losartan PotassiumLosartan Potassium23067
Metformin HclMetformin Hcl19855
GabapentinGabapentin17952
TrulicityDulaglutide16127
HydrochlorothiazideHydrochlorothiazide13845
Tamsulosin HclTamsulosin Hcl13745
Fluoxetine HclFluoxetine Hcl13041
SimvastatinSimvastatin12731
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12636
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12436
Metformin Hcl ErMetformin Hcl11738
AllopurinolAllopurinol10629
EliquisApixaban10631
Trazodone HclTrazodone Hcl10125
FurosemideFurosemide10032
LovastatinLovastatin9527
AtenololAtenolol8624
MeloxicamMeloxicam8631
Albuterol Sulfate HfaAlbuterol Sulfate8532
Zolpidem TartrateZolpidem Tartrate8221
AlprazolamAlprazolam7930
Metoprolol TartrateMetoprolol Tartrate7622
FarxigaDapagliflozin Propanediol7114
Citalopram HbrCitalopram Hydrobromide6721
XareltoRivaroxaban6618
CarvedilolCarvedilol6421
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6215
Pantoprazole SodiumPantoprazole Sodium5922
Pravastatin SodiumPravastatin Sodium5516
Venlafaxine Hcl ErVenlafaxine Hcl5514
Pioglitazone HclPioglitazone Hcl5316
Raloxifene HclRaloxifene Hcl5314
Sertraline HclSertraline Hcl5319
Fluticasone PropionateFluticasone Propionate5119
Rosuvastatin CalciumRosuvastatin Calcium5120
Alendronate SodiumAlendronate Sodium5017
Paroxetine HclParoxetine Hcl5016
Clonidine HclClonidine Hcl4811
Montelukast SodiumMontelukast Sodium4817
SpironolactoneSpironolactone4813
Lantus SolostarInsulin Glargine,hum.Rec.Anlog47suppressed
ChlorthalidoneChlorthalidone4412
OzempicSemaglutide43suppressed
Potassium ChloridePotassium Chloride4312
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4113
ClonazepamClonazepam40suppressed
Escitalopram OxalateEscitalopram Oxalate4013
MounjaroTirzepatide40suppressed
Oxybutynin Chloride ErOxybutynin Chloride3912
Duloxetine HclDuloxetine Hcl3815
FinasterideFinasteride38suppressed
Glipizide ErGlipizide3811
IbuprofenIbuprofen3815
Amitriptyline HclAmitriptyline Hcl3712
Tramadol HclTramadol Hcl3712
Buspirone HclBuspirone Hcl3511
GlipizideGlipizide35suppressed
DutasterideDutasteride33suppressed
EstradiolEstradiol33suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3221
Bupropion Hcl SrBupropion Hcl31suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3113
PrednisonePrednisone2919
Doxazosin MesylateDoxazosin Mesylate28suppressed
NaproxenNaproxen28suppressed
Ipratropium BromideIpratropium Bromide27suppressed
ValacyclovirValacyclovir Hcl2712
CelecoxibCelecoxib2612
Propranolol Hcl ErPropranolol Hcl26suppressed
Benazepril HclBenazepril Hcl25suppressed
ClopidogrelClopidogrel Bisulfate25suppressed
LorazepamLorazepam25suppressed
Spiriva RespimatTiotropium Bromide25suppressed
BaclofenBaclofen24suppressed
LansoprazoleLansoprazole24suppressed
JardianceEmpagliflozin23suppressed
Tolterodine Tartrate ErTolterodine Tartrate23suppressed
Diclofenac SodiumDiclofenac Sodium22suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
Sildenafil CitrateSildenafil Citrate21suppressed
Ventolin HfaAlbuterol Sulfate21suppressed
AzithromycinAzithromycin2020
FenofibrateFenofibrate Nanocrystallized20suppressed
Nifedipine ErNifedipine20suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic20suppressed
Donepezil HclDonepezil Hcl19suppressed
FenofibrateFenofibrate19suppressed
Hydralazine HclHydralazine Hcl19suppressed
Minocycline HclMinocycline Hcl19suppressed
Mometasone FuroateMometasone Furoate1911
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1917
Ondansetron HclOndansetron Hcl19suppressed
PregabalinPregabalin19suppressed
EzetimibeEzetimibe18suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter18suppressed
Warfarin SodiumWarfarin Sodium18suppressed
MethocarbamolMethocarbamol17suppressed
Methylphenidate HclMethylphenidate Hcl17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Terazosin HclTerazosin Hcl17suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
Meclizine HclMeclizine Hcl15suppressed
Testosterone CypionateTestosterone Cypionate15suppressed
HydrocortisoneHydrocortisone14suppressed
LantusInsulin Glargine,hum.Rec.Anlog14suppressed
NabumetoneNabumetone14suppressed
RufinamideRufinamide14suppressed
Sumatriptan SuccinateSumatriptan Succinate14suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
Verapamil ErVerapamil Hcl14suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Medroxyprogesterone AcetateMedroxyprogesterone Acetate13suppressed
PhenobarbitalPhenobarbital13suppressed
Propranolol HclPropranolol Hcl13suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim13suppressed
TemazepamTemazepam13suppressed
TopiramateTopiramate13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Aspirin-Dipyridamole ErAspirin/Dipyridamole12suppressed
CilostazolCilostazol12suppressed
GlimepirideGlimepiride12suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate12suppressed
IrbesartanIrbesartan12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl12suppressed
Victoza 3-PakLiraglutide12suppressed
AmoxicillinAmoxicillin11suppressed
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
LidocaineLidocaine11suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog11suppressed

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