Healthcare provider profile · identity verified

William Anthony Tosches, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · HOPEDALE, MA · NPI 1841390952

Profile state: payments and partd 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

CMS Open Payments records show William Anthony Tosches, MD received $20.54 in general payments during 2025 across 1 reported records.

SK Life Science, Inc. accounted for 100.0% of that reported general-payment amount.

SK Life Science, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XCOPRI as an associated drug or biological on 1992 records involving 782 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Xcopri by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$20.54

1 reported records · 1 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$20.54100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$20.541

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Payment records were found, but the reported records did not identify a specific associated product for this analysis.

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
SK Life Science, Inc.
Exact reporting entity; no affiliate inference
2025 XCOPRI
open payments reported associated product
CMS Open Payments — General Payments
1992 supporting records · 782 recipient NPIs · example record 1252276115
Xcopri · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS

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
GabapentinGabapentin12226
Donepezil HclDonepezil Hcl10023
LevetiracetamLevetiracetam9914
Memantine HclMemantine Hcl7613
Tizanidine HclTizanidine Hcl6720
Divalproex Sodium ErDivalproex Sodium55suppressed
RisperidoneRisperidone50suppressed
Sertraline HclSertraline Hcl50suppressed
BaclofenBaclofen4711
Orphenadrine Citrate ErOrphenadrine Citrate45suppressed
Quetiapine FumarateQuetiapine Fumarate45suppressed
Oxycodone HclOxycodone Hcl43suppressed
Tramadol HclTramadol Hcl3611
LorazepamLorazepam35suppressed
PregabalinPregabalin33suppressed
DilantinPhenytoin Sodium Extended32suppressed
XcopriCenobamate32suppressed
IbuprofenIbuprofen28suppressed
Trazodone HclTrazodone Hcl27suppressed
Diclofenac Sodium-MisoprostolDiclofenac Sodium/Misoprostol26suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl25suppressed
Divalproex SodiumDivalproex Sodium25suppressed
RizatriptanRizatriptan Benzoate24suppressed
TopiramateTopiramate21suppressed
DiazepamDiazepam20suppressed
OnfiClobazam20suppressed
AmantadineAmantadine Hcl18suppressed
Glatiramer AcetateGlatiramer Acetate18suppressed
LamotrigineLamotrigine18suppressed
MirtazapineMirtazapine18suppressed
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
Aimovig AutoinjectorErenumab-Aooe17suppressed
Austedo XrDeutetrabenazine17suppressed
NaproxenNaproxen17suppressed
VumerityDiroximel Fumarate17suppressed
OxcarbazepineOxcarbazepine16suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl16suppressed
BotoxOnabotulinumtoxina15suppressed
ClonazepamClonazepam15suppressed
Clonidine HclClonidine Hcl15suppressed
Diclofenac SodiumDiclofenac Sodium15suppressed
OlanzapineOlanzapine15suppressed
Testosterone CypionateTestosterone Cypionate15suppressed
AubagioTeriflunomide14suppressed
KeppraLevetiracetam14suppressed
PhenobarbitalPhenobarbital14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
AripiprazoleAripiprazole13suppressed
BanzelRufinamide13suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Cyproheptadine HclCyproheptadine Hcl13suppressed
OxycontinOxycodone Hcl13suppressed
PrimidonePrimidone12suppressed
Avonex Pen (4 Pack)Interferon Beta-1a11suppressed
Buspirone HclBuspirone Hcl11suppressed
Carbamazepine ErCarbamazepine11suppressed
FycompaPerampanel11suppressed
HydrochlorothiazideHydrochlorothiazide11suppressed
Propranolol HclPropranolol Hcl11suppressed
Ropinirole HclRopinirole Hcl11suppressed
ZonegranZonisamide11suppressed
ZonisamideZonisamide11suppressed

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 $20.54 · 1 records SK Life Science, Inc. 1
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