Healthcare provider profile · identity verified

Kathleen M Chaisson, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · DERBY, CT · NPI 1932130259

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 Kathleen M Chaisson, M.D. received $520.30 in general payments during 2025 across 26 reported records.

GlaxoSmithKline, LLC. accounted for 54.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Trelegy Ellipta.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 553 claims for Trelegy Ellipta by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Mounjaro by this doctor in 2024.

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

Payment overview · 2025

General Payments

$520.30

26 reported records · 4 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $285.4854.9%222025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $199.9838.4%22025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $20.834.0%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $14.012.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$320.3224
Education$199.982

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
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $206.11 17 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $199.98 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $79.37 5 2025
Source payment records
TERLIVAZ
Normalized: terlivaz
Drug Mallinckrodt Hospital Products Inc. $20.83 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $14.01 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 553 exact normalized Medicare Part D

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
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
553 94
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
11 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
Trelegy ElliptaFluticasone/Umeclidin/Vilanter55394
Albuterol Sulfate HfaAlbuterol Sulfate455129
PrednisonePrednisone22982
Fluticasone PropionateFluticasone Propionate17756
Montelukast SodiumMontelukast Sodium17338
Breo ElliptaFluticasone/Vilanterol9515
Trazodone HclTrazodone Hcl9421
AzithromycinAzithromycin9259
Breztri AerosphereBudesonide/Glycopyr/Formoterol8214
SymbicortBudesonide/Formoterol Fumarate6714
OmeprazoleOmeprazole5818
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate5714
Ropinirole HclRopinirole Hcl50suppressed
Ventolin HfaAlbuterol Sulfate4813
Stiolto RespimatTiotropium Br/Olodaterol Hcl44suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr36suppressed
Wixela InhubFluticasone Propion/Salmeterol36suppressed
Spiriva RespimatTiotropium Bromide27suppressed
Arnuity ElliptaFluticasone Furoate26suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2420
NystatinNystatin2417
EliquisApixaban22suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride20suppressed
Spiriva HandihalerTiotropium Bromide19suppressed
Fluticasone-VilanterolFluticasone/Vilanterol18suppressed
Hydroxyzine HclHydroxyzine Hcl17suppressed
BreynaBudesonide/Formoterol Fumarate16suppressed
FurosemideFurosemide14suppressed
Advair HfaFluticasone Propion/Salmeterol13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1311
Dupixent PenDupilumab13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
RoflumilastRoflumilast13suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate12suppressed
LumryzSodium Oxybate12suppressed
Doxycycline HyclateDoxycycline Hyclate1111
MounjaroTirzepatide11suppressed
SunosiSolriamfetol Hcl11suppressed
Zolpidem TartrateZolpidem Tartrate11suppressed

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 $520.30 · 26 records GlaxoSmithKline, LLC. NUCALA, TERLIVAZ, TRELEGY ELLIPTA, XYWAV, ZEPBOUND 2
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