Healthcare provider profile · identity verified

John W Dickason, M.D.

Internal Medicine · BILLERICA, MA · NPI 1932148020

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 Calcium29686
LisinoprilLisinopril24073
Losartan PotassiumLosartan Potassium19157
Rosuvastatin CalciumRosuvastatin Calcium18460
Amlodipine BesylateAmlodipine Besylate18359
Metoprolol SuccinateMetoprolol Succinate15547
SimvastatinSimvastatin14142
Levothyroxine SodiumLevothyroxine Sodium13443
HydrochlorothiazideHydrochlorothiazide12143
Metformin HclMetformin Hcl10635
OmeprazoleOmeprazole10133
LorazepamLorazepam8336
Tamsulosin HclTamsulosin Hcl8225
EliquisApixaban7422
FamotidineFamotidine7123
TelmisartanTelmisartan6817
Metformin Hcl ErMetformin Hcl6424
Sertraline HclSertraline Hcl6222
ClonazepamClonazepam59suppressed
ValsartanValsartan5915
AtenololAtenolol5818
GabapentinGabapentin5217
AllopurinolAllopurinol5116
CarvedilolCarvedilol5116
Albuterol Sulfate HfaAlbuterol Sulfate5023
OzempicSemaglutide50suppressed
Felodipine ErFelodipine4816
Fluticasone PropionateFluticasone Propionate4816
JardianceEmpagliflozin4714
Pravastatin SodiumPravastatin Sodium4417
Doxazosin MesylateDoxazosin Mesylate43suppressed
MounjaroTirzepatide40suppressed
Tramadol HclTramadol Hcl3714
TrulicityDulaglutide35suppressed
Pantoprazole SodiumPantoprazole Sodium3412
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen33suppressed
Olmesartan MedoxomilOlmesartan Medoxomil33suppressed
Metoprolol TartrateMetoprolol Tartrate3211
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip3013
EzetimibeEzetimibe29suppressed
Escitalopram OxalateEscitalopram Oxalate28suppressed
FurosemideFurosemide2811
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr27suppressed
Alendronate SodiumAlendronate Sodium25suppressed
Warfarin SodiumWarfarin Sodium25suppressed
ClopidogrelClopidogrel Bisulfate23suppressed
Trazodone HclTrazodone Hcl2311
XareltoRivaroxaban23suppressed
BaclofenBaclofen22suppressed
Pioglitazone HclPioglitazone Hcl22suppressed
FinasterideFinasteride21suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid21suppressed
ChlorthalidoneChlorthalidone20suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine20suppressed
TorsemideTorsemide20suppressed
Bupropion XlBupropion Hcl19suppressed
Naltrexone HclNaltrexone Hcl1915
Terazosin HclTerazosin Hcl19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
Labetalol HclLabetalol Hcl17suppressed
Wixela InhubFluticasone Propion/Salmeterol17suppressed
Duloxetine HclDuloxetine Hcl16suppressed
LantusInsulin Glargine,hum.Rec.Anlog16suppressed
Montelukast SodiumMontelukast Sodium16suppressed
PregabalinPregabalin16suppressed
SpironolactoneSpironolactone16suppressed
Clonidine HclClonidine Hcl15suppressed
AlprazolamAlprazolam14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
Quetiapine FumarateQuetiapine Fumarate14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
DiazepamDiazepam13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Glipizide ErGlipizide13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1211
BiktarvyBictegrav/Emtricit/Tenofov Ala12suppressed
Doxycycline HyclateDoxycycline Hyclate1211
FenofibrateFenofibrate,micronized12suppressed
Methadone HclMethadone Hcl12suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic12suppressed
Potassium ChloridePotassium Chloride12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Oxycodone HclOxycodone 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