Healthcare provider profile · identity verified

John B Piecyk, M.D.

Neurology · SOUTH WEYMOUTH, MA · NPI 1013971290

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
GabapentinGabapentin23255
Donepezil HclDonepezil Hcl12844
LevetiracetamLevetiracetam10829
Nurtec OdtRimegepant Sulfate9920
Memantine HclMemantine Hcl8526
TopiramateTopiramate8519
Mycophenolate MofetilMycophenolate Mofetil7221
BaclofenBaclofen6716
RizatriptanRizatriptan Benzoate6115
Sumatriptan SuccinateSumatriptan Succinate5711
Amitriptyline HclAmitriptyline Hcl5319
MethocarbamolMethocarbamol5019
PrednisonePrednisone5013
Emgality PenGalcanezumab-Gnlm48suppressed
PhenobarbitalPhenobarbital46suppressed
HizentraImmun Glob G(Igg)/Pro/Iga 0-5039suppressed
Memantine Hcl ErMemantine Hcl38suppressed
Divalproex Sodium ErDivalproex Sodium35suppressed
Duloxetine HclDuloxetine Hcl32suppressed
OxcarbazepineOxcarbazepine32suppressed
Aimovig AutoinjectorErenumab-Aooe30suppressed
Carbamazepine ErCarbamazepine30suppressed
DilantinPhenytoin Sodium Extended30suppressed
PregabalinPregabalin30suppressed
Rasagiline MesylateRasagiline Mesylate30suppressed
ClonazepamClonazepam29suppressed
Emgality SyringeGalcanezumab-Gnlm28suppressed
PrimidonePrimidone2811
Divalproex SodiumDivalproex Sodium27suppressed
RivastigmineRivastigmine Tartrate26suppressed
CarbamazepineCarbamazepine23suppressed
Pyridostigmine BromidePyridostigmine Bromide20suppressed
Carbidopa-LevodopaCarbidopa/Levodopa19suppressed
LamotrigineLamotrigine19suppressed
Propranolol Hcl ErPropranolol Hcl18suppressed
Levetiracetam ErLevetiracetam17suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended17suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl17suppressed
LacosamideLacosamide16suppressed
Eletriptan HbrEletriptan Hydrobromide15suppressed
Trazodone HclTrazodone Hcl15suppressed
Nortriptyline HclNortriptyline Hcl14suppressed
Tizanidine HclTizanidine Hcl14suppressed
ActemraTocilizumab13suppressed
Avonex (4 Pack)Interferon Beta-1a13suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Keppra XrLevetiracetam13suppressed
Dimethyl FumarateDimethyl Fumarate12suppressed
NabumetoneNabumetone12suppressed
ZonisamideZonisamide12suppressed
UbrelvyUbrogepant11suppressed

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