Healthcare provider profile · identity verified

Robin L Trumbull, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · MERCED, CA · NPI 1568553030

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 Robin L Trumbull, M.D. received $81.30 in general payments during 2025 across 4 reported records.

AstraZeneca Pharmaceuticals LP accounted for 46.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 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 25 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

$81.30

4 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $37.4746.1%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $27.7534.1%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $16.0819.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$81.304

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
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $37.47 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $27.75 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $16.08 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 25
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
25 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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen20041
Atorvastatin CalciumAtorvastatin Calcium10736
Albuterol Sulfate HfaAlbuterol Sulfate10525
LisinoprilLisinopril10336
Levothyroxine SodiumLevothyroxine Sodium9731
ClopidogrelClopidogrel Bisulfate8632
Acetaminophen-CodeineAcetaminophen With Codeine8416
AlprazolamAlprazolam8015
GabapentinGabapentin7929
Losartan PotassiumLosartan Potassium7928
Amlodipine BesylateAmlodipine Besylate7829
HydrochlorothiazideHydrochlorothiazide7425
OmeprazoleOmeprazole6724
Metformin HclMetformin Hcl6120
DiazepamDiazepam5712
Tramadol HclTramadol Hcl5714
CarvedilolCarvedilol5017
Metoprolol SuccinateMetoprolol Succinate4819
Tamsulosin HclTamsulosin Hcl4716
AzithromycinAzithromycin4320
IbuprofenIbuprofen3914
Pantoprazole SodiumPantoprazole Sodium3711
Clonidine HclClonidine Hcl35suppressed
LorazepamLorazepam34suppressed
Metoprolol TartrateMetoprolol Tartrate34suppressed
JanuviaSitagliptin Phosphate30suppressed
Pravastatin SodiumPravastatin Sodium30suppressed
KetoconazoleKetoconazole29suppressed
AllopurinolAllopurinol2711
Carbidopa-LevodopaCarbidopa/Levodopa26suppressed
CephalexinCephalexin2615
ClonazepamClonazepam26suppressed
Metformin Hcl ErMetformin Hcl2611
Potassium ChloridePotassium Chloride26suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter25suppressed
PrednisonePrednisone23suppressed
SimvastatinSimvastatin23suppressed
Trazodone HclTrazodone Hcl22suppressed
Zolpidem TartrateZolpidem Tartrate22suppressed
AmoxicillinAmoxicillin21suppressed
Terbinafine HclTerbinafine Hcl20suppressed
FluconazoleFluconazole1911
FurosemideFurosemide18suppressed
Hydroxyzine HclHydroxyzine Hcl18suppressed
PhenobarbitalPhenobarbital18suppressed
Sumatriptan SuccinateSumatriptan Succinate17suppressed
Betamethasone DipropionateBetamethasone Dipropionate16suppressed
Diclofenac SodiumDiclofenac Sodium16suppressed
GlimepirideGlimepiride16suppressed
NaproxenNaproxen1612
CelecoxibCelecoxib15suppressed
ClonidineClonidine15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1513
AtenololAtenolol14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
Duloxetine HclDuloxetine Hcl14suppressed
EliquisApixaban14suppressed
EstradiolEstradiol14suppressed
PregabalinPregabalin14suppressed
EzetimibeEzetimibe13suppressed
Sertraline HclSertraline Hcl13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
MounjaroTirzepatide12suppressed
NitrofurantoinNitrofurantoin Macrocrystal12suppressed
Oxycodone HclOxycodone Hcl12suppressed
PermethrinPermethrin12suppressed
Repatha SureclickEvolocumab12suppressed
Donepezil HclDonepezil Hcl11suppressed
Fluticasone PropionateFluticasone Propionate11suppressed
GlipizideGlipizide11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
Ropinirole HclRopinirole Hcl11suppressed
Venlafaxine HclVenlafaxine Hcl11suppressed

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 $81.30 · 4 records AstraZeneca Pharmaceuticals LP BREZTRI, Korlym, 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