Healthcare provider profile · identity verified

William Massey, MD

Family Practice · STERLING HEIGHTS, MI · NPI 1609884600

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
Amlodipine BesylateAmlodipine Besylate262120
Atorvastatin CalciumAtorvastatin Calcium20098
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18353
Albuterol Sulfate HfaAlbuterol Sulfate12561
LisinoprilLisinopril10943
PrednisonePrednisone10190
Tamsulosin HclTamsulosin Hcl10152
Losartan PotassiumLosartan Potassium9953
Levothyroxine SodiumLevothyroxine Sodium9339
Fluticasone PropionateFluticasone Propionate9240
Metformin Hcl ErMetformin Hcl7340
CephalexinCephalexin7166
FamotidineFamotidine7141
MeloxicamMeloxicam6841
Tramadol HclTramadol Hcl6822
IbuprofenIbuprofen6626
AzithromycinAzithromycin6562
OmeprazoleOmeprazole6426
Hydralazine HclHydralazine Hcl6128
GabapentinGabapentin5830
Metformin HclMetformin Hcl5626
Tizanidine HclTizanidine Hcl5630
BreynaBudesonide/Formoterol Fumarate5318
HydrochlorothiazideHydrochlorothiazide5225
Metoprolol TartrateMetoprolol Tartrate4925
Metoprolol SuccinateMetoprolol Succinate4622
Montelukast SodiumMontelukast Sodium4518
AllopurinolAllopurinol4417
FurosemideFurosemide4421
Trazodone HclTrazodone Hcl3719
Alendronate SodiumAlendronate Sodium3614
Pantoprazole SodiumPantoprazole Sodium3623
ClonazepamClonazepam35suppressed
Humulin NInsulin Nph Human Isophane3413
Potassium ChloridePotassium Chloride3415
PregabalinPregabalin33suppressed
Rosuvastatin CalciumRosuvastatin Calcium3114
CarvedilolCarvedilol3017
Cefpodoxime ProxetilCefpodoxime Proxetil3030
AlvescoCiclesonide2911
Clonidine HclClonidine Hcl27suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2713
Ondansetron HclOndansetron Hcl2621
LevetiracetamLevetiracetam25suppressed
MirtazapineMirtazapine25suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen25suppressed
NystatinNystatin24suppressed
Sertraline HclSertraline Hcl2414
BaclofenBaclofen23suppressed
ClopidogrelClopidogrel Bisulfate2312
Cyclobenzaprine HclCyclobenzaprine Hcl23suppressed
GlipizideGlipizide2314
NabumetoneNabumetone2318
Ciprofloxacin HclCiprofloxacin Hcl2220
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha2119
Oxycodone HclOxycodone Hcl21suppressed
OzempicSemaglutide21suppressed
Terazosin HclTerazosin Hcl2111
Doxycycline MonohydrateDoxycycline Monohydrate2019
PaxlovidNirmatrelvir/Ritonavir2020
Propranolol HclPropranolol Hcl20suppressed
TradjentaLinagliptin20suppressed
AtenololAtenolol19suppressed
JardianceEmpagliflozin1911
Triamcinolone AcetonideTriamcinolone Acetonide1913
Hydroxyzine HclHydroxyzine Hcl1812
Sumatriptan SuccinateSumatriptan Succinate18suppressed
ColchicineColchicine17suppressed
SimvastatinSimvastatin17suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid17suppressed
SpironolactoneSpironolactone16suppressed
SucralfateSucralfate16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
FinasterideFinasteride1511
LidocaineLidocaine15suppressed
LovastatinLovastatin15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
AcyclovirAcyclovir14suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1414
AlprazolamAlprazolam14suppressed
Bupropion XlBupropion Hcl14suppressed
GlimepirideGlimepiride14suppressed
MethocarbamolMethocarbamol14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
Quetiapine FumarateQuetiapine Fumarate14suppressed
AmoxicillinAmoxicillin13suppressed
DiazepamDiazepam13suppressed
Humulin RInsulin Regular, Human13suppressed
LiraglutideLiraglutide13suppressed
Wixela InhubFluticasone Propion/Salmeterol13suppressed
Chlorhexidine GluconateChlorhexidine Gluconate12suppressed
LorazepamLorazepam12suppressed
MupirocinMupirocin12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1211
Retin-ATretinoin12suppressed
FluconazoleFluconazole11suppressed
FluocinonideFluocinonide11suppressed
LactuloseLactulose11suppressed

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