Healthcare provider profile · identity verified

David Wayne Harrison, MD

Internal Medicine · EVERETT, MA · NPI 1790775369

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 Calcium31396
Amlodipine BesylateAmlodipine Besylate20569
OmeprazoleOmeprazole15249
LisinoprilLisinopril13646
Metoprolol SuccinateMetoprolol Succinate11536
Oxycodone HclOxycodone Hcl9920
Losartan PotassiumLosartan Potassium8027
Metformin HclMetformin Hcl7524
Metformin Hcl ErMetformin Hcl7025
JardianceEmpagliflozin6521
Trazodone HclTrazodone Hcl6119
Alendronate SodiumAlendronate Sodium5715
HydrochlorothiazideHydrochlorothiazide5119
Levothyroxine SodiumLevothyroxine Sodium4617
GabapentinGabapentin4221
Glipizide ErGlipizide4213
Fluticasone PropionateFluticasone Propionate3919
IbuprofenIbuprofen3821
Clobetasol PropionateClobetasol Propionate3520
LorazepamLorazepam3514
SimvastatinSimvastatin3512
FinasterideFinasteride3311
Tamsulosin HclTamsulosin Hcl3313
EliquisApixaban32suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide32suppressed
Tizanidine HclTizanidine Hcl3014
AlprazolamAlprazolam29suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen29suppressed
SpironolactoneSpironolactone2911
Tramadol HclTramadol Hcl29suppressed
FamotidineFamotidine28suppressed
Diclofenac SodiumDiclofenac Sodium26suppressed
FurosemideFurosemide2612
Montelukast SodiumMontelukast Sodium24suppressed
MounjaroTirzepatide24suppressed
OzempicSemaglutide24suppressed
ValsartanValsartan2413
Albuterol Sulfate HfaAlbuterol Sulfate2311
AllopurinolAllopurinol23suppressed
PrednisonePrednisone2322
Zolpidem TartrateZolpidem Tartrate22suppressed
CelecoxibCelecoxib20suppressed
Donepezil HclDonepezil Hcl20suppressed
Rosuvastatin CalciumRosuvastatin Calcium20suppressed
Sumatriptan SuccinateSumatriptan Succinate20suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads19suppressed
KetoconazoleKetoconazole19suppressed
Ventolin HfaAlbuterol Sulfate19suppressed
AtenololAtenolol17suppressed
ClonazepamClonazepam17suppressed
Escitalopram OxalateEscitalopram Oxalate17suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
Ipratropium BromideIpratropium Bromide17suppressed
TrulicityDulaglutide17suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
Duloxetine HclDuloxetine Hcl16suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate16suppressed
NaproxenNaproxen1611
Pravastatin SodiumPravastatin Sodium15suppressed
ClopidogrelClopidogrel Bisulfate14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
ColchicineColchicine12suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed
EzetimibeEzetimibe12suppressed
Ammonium LactateAmmonium Lactate11suppressed
Cromolyn SodiumCromolyn Sodium11suppressed
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat11suppressed
HydrocortisoneHydrocortisone11suppressed
Incruse ElliptaUmeclidinium Bromide11suppressed
MupirocinMupirocin11suppressed
Sertraline HclSertraline Hcl11suppressed

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