Healthcare provider profile · identity verified

Marcus William Heisler, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · ELMA, WA · NPI 1205256955

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 Marcus William Heisler, M.D. received $24.85 in general payments during 2025 across 1 reported records.

GlaxoSmithKline, LLC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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 17 claims for Trelegy Ellipta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$24.85

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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $24.85100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$24.851

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
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $24.85 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 17
Beneficiary count suppressed
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
17 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
Atorvastatin CalciumAtorvastatin Calcium31871
Rosuvastatin CalciumRosuvastatin Calcium25168
LisinoprilLisinopril23254
Levothyroxine SodiumLevothyroxine Sodium22251
Losartan PotassiumLosartan Potassium19449
Amlodipine BesylateAmlodipine Besylate19052
GabapentinGabapentin15733
Oxycodone HclOxycodone Hcl13519
Metformin HclMetformin Hcl13334
Potassium ChloridePotassium Chloride12629
Albuterol Sulfate HfaAlbuterol Sulfate12035
Metoprolol SuccinateMetoprolol Succinate11736
OmeprazoleOmeprazole11728
Tramadol HclTramadol Hcl10320
Tamsulosin HclTamsulosin Hcl10229
Pantoprazole SodiumPantoprazole Sodium9727
HydrochlorothiazideHydrochlorothiazide9425
FamotidineFamotidine8415
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8313
FurosemideFurosemide7918
Trazodone HclTrazodone Hcl7820
Warfarin SodiumWarfarin Sodium7712
AllopurinolAllopurinol7016
EliquisApixaban6716
EzetimibeEzetimibe6318
Cyclobenzaprine HclCyclobenzaprine Hcl6214
Sertraline HclSertraline Hcl5915
SimvastatinSimvastatin5812
Bupropion XlBupropion Hcl56suppressed
CarvedilolCarvedilol5615
PregabalinPregabalin56suppressed
Fluoxetine HclFluoxetine Hcl54suppressed
Duloxetine HclDuloxetine Hcl53suppressed
Metformin Hcl ErMetformin Hcl5112
PrednisonePrednisone5117
Ventolin HfaAlbuterol Sulfate5112
Venlafaxine Hcl ErVenlafaxine Hcl4913
Buspirone HclBuspirone Hcl46suppressed
Pravastatin SodiumPravastatin Sodium4612
OzempicSemaglutide44suppressed
ClonazepamClonazepam43suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog41suppressed
AtenololAtenolol40suppressed
ChlorthalidoneChlorthalidone4011
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4011
Ropinirole HclRopinirole Hcl40suppressed
ClopidogrelClopidogrel Bisulfate3911
Escitalopram OxalateEscitalopram Oxalate39suppressed
FentanylFentanyl38suppressed
RisperidoneRisperidone38suppressed
Alendronate SodiumAlendronate Sodium37suppressed
MirtazapineMirtazapine37suppressed
MounjaroTirzepatide37suppressed
Morphine Sulfate ErMorphine Sulfate34suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl33suppressed
Hydroxyzine HclHydroxyzine Hcl3312
Guanfacine Hcl ErGuanfacine Hcl32suppressed
LidocaineLidocaine32suppressed
MethocarbamolMethocarbamol3112
Quetiapine FumarateQuetiapine Fumarate31suppressed
Montelukast SodiumMontelukast Sodium30suppressed
XareltoRivaroxaban29suppressed
Diclofenac SodiumDiclofenac Sodium2815
FinasterideFinasteride2811
FluconazoleFluconazole28suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen28suppressed
SpironolactoneSpironolactone28suppressed
Ondansetron OdtOndansetron27suppressed
Fluticasone PropionateFluticasone Propionate2511
RybelsusSemaglutide25suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl25suppressed
EstradiolEstradiol23suppressed
Naltrexone HclNaltrexone Hcl23suppressed
Amitriptyline HclAmitriptyline Hcl22suppressed
CephalexinCephalexin2215
IbuprofenIbuprofen22suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride22suppressed
LorazepamLorazepam22suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
Nifedipine ErNifedipine21suppressed
AcyclovirAcyclovir20suppressed
Hydromorphone HclHydromorphone Hcl20suppressed
Doxepin HclDoxepin Hcl18suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
NaproxenNaproxen18suppressed
Ipratropium BromideIpratropium Bromide17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
Naloxone HclNaloxone Hcl1715
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst17suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter17suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
DiazepamDiazepam16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)15suppressed
LansoprazoleLansoprazole15suppressed
NitroglycerinNitroglycerin1512
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
AripiprazoleAripiprazole14suppressed
Divalproex Sodium ErDivalproex Sodium14suppressed
Enalapril MaleateEnalapril Maleate14suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate14suppressed
Propranolol HclPropranolol Hcl14suppressed
Acetaminophen-CodeineAcetaminophen With Codeine13suppressed
Candesartan CilexetilCandesartan Cilexetil13suppressed
Clomipramine HclClomipramine Hcl13suppressed
ClotrimazoleClotrimazole13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
Droplet Pen NeedlePen Needle, Diabetic13suppressed
DutasterideDutasteride13suppressed
Hydroxyzine PamoateHydroxyzine Pamoate13suppressed
IbuIbuprofen13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
Nortriptyline HclNortriptyline Hcl13suppressed
RamiprilRamipril13suppressed
SynthroidLevothyroxine Sodium13suppressed
ValacyclovirValacyclovir Hcl13suppressed
AlprazolamAlprazolam12suppressed
ChlorzoxazoneChlorzoxazone12suppressed
Combivent RespimatIpratropium/Albuterol Sulfate12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine12suppressed
GlipizideGlipizide12suppressed
Hydralazine HclHydralazine Hcl12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Memantine HclMemantine Hcl12suppressed
MetolazoneMetolazone12suppressed
OlanzapineOlanzapine12suppressed
Prazosin HclPrazosin Hcl12suppressed
Ranolazine ErRanolazine12suppressed
Repatha SureclickEvolocumab12suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide12suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads11suppressed
Bromocriptine MesylateBromocriptine Mesylate11suppressed
Divalproex SodiumDivalproex Sodium11suppressed
EntrestoSacubitril/Valsartan11suppressed
Humalog Kwikpen U-100Insulin Lispro11suppressed
Meclizine HclMeclizine Hcl11suppressed
Methadone HclMethadone Hcl11suppressed
Paroxetine HclParoxetine Hcl11suppressed
Propranolol Hcl ErPropranolol Hcl11suppressed
ValsartanValsartan11suppressed

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 $24.85 · 1 records GlaxoSmithKline, LLC. TRELEGY ELLIPTA 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