Healthcare provider profile · identity verified

Sean Horrigan, D.O.

Allopathic & Osteopathic Physicians|Internal Medicine · WORCESTER, MA · NPI 1821140351

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 Sean Horrigan, D.O. received $339.08 in general payments during 2025 across 7 reported records.

GENZYME CORPORATION accounted for 58.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

ABBVIE 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 UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Ubrelvy by this doctor in 2024.

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

Payment overview · 2025

General Payments

$339.08

7 reported records · 3 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
GENZYME CORPORATION Unresolved — no canonical attribution shown $196.8058.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $115.9034.2%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $26.387.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$339.087

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

Reported productTypeReported companyRelated amount*RecordsYear
BOTOX
Normalized: botox
Biological ABBVIE INC. $115.90 4 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $26.38 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 UBRELVY
open payments reported associated product
CMS Open Payments — General Payments
299803 supporting records · 61203 recipient NPIs · example record 1201352530
Ubrelvy · 2024
Exact normalized brand match · 1 Part D row
19 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
Donepezil HclDonepezil Hcl693205
Memantine HclMemantine Hcl365116
Trazodone HclTrazodone Hcl347120
Carbidopa-LevodopaCarbidopa/Levodopa25171
Quetiapine FumarateQuetiapine Fumarate12736
Memantine Hcl ErMemantine Hcl12141
Escitalopram OxalateEscitalopram Oxalate11436
GabapentinGabapentin11036
Divalproex SodiumDivalproex Sodium9928
RivastigmineRivastigmine9632
Levetiracetam ErLevetiracetam9325
LamotrigineLamotrigine9213
Citalopram HbrCitalopram Hydrobromide8425
Sumatriptan SuccinateSumatriptan Succinate7514
PrimidonePrimidone7223
LevetiracetamLevetiracetam6822
Sertraline HclSertraline Hcl6723
PregabalinPregabalin6616
MirtazapineMirtazapine6321
Carbidopa-Levodopa ErCarbidopa/Levodopa5618
Nurtec OdtRimegepant Sulfate53suppressed
Divalproex Sodium ErDivalproex Sodium4612
RivastigmineRivastigmine Tartrate4615
LacosamideLacosamide44suppressed
Nortriptyline HclNortriptyline Hcl4112
OxcarbazepineOxcarbazepine41suppressed
PhenobarbitalPhenobarbital40suppressed
Propranolol HclPropranolol Hcl3713
TopiramateTopiramate34suppressed
Ropinirole HclRopinirole Hcl28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl27suppressed
RisperidoneRisperidone27suppressed
RizatriptanRizatriptan Benzoate24suppressed
DiazepamDiazepam22suppressed
Duloxetine HclDuloxetine Hcl22suppressed
OlanzapineOlanzapine22suppressed
BaclofenBaclofen21suppressed
LorazepamLorazepam21suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
Ondansetron HclOndansetron Hcl20suppressed
UbrelvyUbrogepant19suppressed
BriviactBrivaracetam18suppressed
MethylprednisoloneMethylprednisolone1715
Phenytoin Sodium ExtendedPhenytoin Sodium Extended17suppressed
ExelonRivastigmine16suppressed
Galantamine ErGalantamine Hbr16suppressed
Emgality SyringeGalcanezumab-Gnlm15suppressed
Lamotrigine ErLamotrigine15suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
Emgality PenGalcanezumab-Gnlm14suppressed
EntacaponeEntacapone14suppressed
Bupropion XlBupropion Hcl13suppressed
CopaxoneGlatiramer Acetate13suppressed
Fluoxetine HclFluoxetine Hcl13suppressed
Paroxetine HclParoxetine Hcl13suppressed
Naratriptan HclNaratriptan Hcl12suppressed
TeriflunomideTeriflunomide12suppressed
ClobazamClobazam11suppressed

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 $339.08 · 7 records GENZYME CORPORATION BOTOX, KISUNLA 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