Healthcare provider profile · identity verified

William Lyle Patterson, DO

Family Practice · PEMBROKE, MA · NPI 1184036337

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 Calcium589196
LisinoprilLisinopril364129
Amlodipine BesylateAmlodipine Besylate321109
SimvastatinSimvastatin18552
Losartan PotassiumLosartan Potassium18462
HydrochlorothiazideHydrochlorothiazide17559
OmeprazoleOmeprazole16058
Levothyroxine SodiumLevothyroxine Sodium13039
Rosuvastatin CalciumRosuvastatin Calcium12644
Metoprolol SuccinateMetoprolol Succinate11837
AllopurinolAllopurinol11634
Tamsulosin HclTamsulosin Hcl10440
Trazodone HclTrazodone Hcl10328
GabapentinGabapentin8925
Metformin HclMetformin Hcl8728
Pantoprazole SodiumPantoprazole Sodium8528
Metformin Hcl ErMetformin Hcl8126
AtenololAtenolol6926
Sertraline HclSertraline Hcl6719
Escitalopram OxalateEscitalopram Oxalate5722
Pravastatin SodiumPravastatin Sodium5718
Albuterol Sulfate HfaAlbuterol Sulfate5417
Metoprolol TartrateMetoprolol Tartrate5114
EzetimibeEzetimibe3816
Fluticasone PropionateFluticasone Propionate3816
AlprazolamAlprazolam3611
LorazepamLorazepam3612
CarvedilolCarvedilol35suppressed
OzempicSemaglutide35suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3411
Montelukast SodiumMontelukast Sodium34suppressed
Citalopram HbrCitalopram Hydrobromide3011
ClonazepamClonazepam30suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen30suppressed
Fluoxetine HclFluoxetine Hcl28suppressed
MirtazapineMirtazapine28suppressed
EliquisApixaban27suppressed
ValsartanValsartan25suppressed
XareltoRivaroxaban25suppressed
Alendronate SodiumAlendronate Sodium24suppressed
Glipizide ErGlipizide24suppressed
Zolpidem TartrateZolpidem Tartrate24suppressed
Amitriptyline HclAmitriptyline Hcl23suppressed
Buspirone HclBuspirone Hcl23suppressed
Nifedipine ErNifedipine23suppressed
IbuprofenIbuprofen22suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl21suppressed
FamotidineFamotidine21suppressed
LovastatinLovastatin21suppressed
Quetiapine FumarateQuetiapine Fumarate21suppressed
TrulicityDulaglutide21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl20suppressed
Divalproex SodiumDivalproex Sodium20suppressed
MeloxicamMeloxicam20suppressed
FenofibrateFenofibrate19suppressed
FinasterideFinasteride19suppressed
Ventolin HfaAlbuterol Sulfate19suppressed
PrednisonePrednisone1717
Terbinafine HclTerbinafine Hcl1612
KetoconazoleKetoconazole15suppressed
FenofibrateFenofibrate,micronized14suppressed
FurosemideFurosemide14suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14suppressed
Potassium ChloridePotassium Chloride14suppressed
Propranolol HclPropranolol Hcl14suppressed
Sildenafil CitrateSildenafil Citrate14suppressed
SpironolactoneSpironolactone13suppressed
BaclofenBaclofen12suppressed
CelecoxibCelecoxib12suppressed
DiazepamDiazepam12suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril11suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1111
FenofibrateFenofibrate Nanocrystallized11suppressed
GlipizideGlipizide11suppressed
NystatinNystatin11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Venlafaxine HclVenlafaxine 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
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