Healthcare provider profile · identity verified

Kenneth G Trestman, MD

Allopathic & Osteopathic Physicians|Internal Medicine · ENCINITAS, CA · NPI 1346358793

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 Kenneth G Trestman, MD received $161.95 in general payments during 2025 across 9 reported records.

GlaxoSmithKline, LLC. accounted for 51.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 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 75 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

$161.95

9 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $83.6451.6%42025
Insmed, Inc. Unresolved — no canonical attribution shown $63.3939.1%42025
Electromed, Inc. Unresolved — no canonical attribution shown $14.929.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$144.578
Education$17.381

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
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $46.01 3 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $44.14 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $39.50 2 2025
Source payment records
SMARTVEST
Normalized: smartvest
Device Electromed, Inc. $14.92 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 75 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
75 16

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
PrednisonePrednisone18277
Albuterol Sulfate HfaAlbuterol Sulfate12246
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr8617
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7516
Breo ElliptaFluticasone/Vilanterol6913
AzithromycinAzithromycin6626
Stiolto RespimatTiotropium Br/Olodaterol Hcl5814
Spiriva RespimatTiotropium Bromide5712
Montelukast SodiumMontelukast Sodium4919
Wixela InhubFluticasone Propion/Salmeterol4214
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3928
Mycophenolate MofetilMycophenolate Mofetil37suppressed
Arnuity ElliptaFluticasone Furoate32suppressed
Fluticasone PropionateFluticasone Propionate2913
Potassium ChloridePotassium Chloride25suppressed
EliquisApixaban23suppressed
BreynaBudesonide/Formoterol Fumarate21suppressed
FurosemideFurosemide18suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol17suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim16suppressed
Atrovent HfaIpratropium Bromide15suppressed
Advair HfaFluticasone Propion/Salmeterol14suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol14suppressed
LevofloxacinLevofloxacin1312
Qvar RedihalerBeclomethasone Dipropionate13suppressed
AzathioprineAzathioprine12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
LansoprazoleLansoprazole12suppressed
OzempicSemaglutide12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
AtenololAtenolol11suppressed
Incruse ElliptaUmeclidinium Bromide11suppressed
OfevNintedanib Esylate11suppressed

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 $161.95 · 9 records GlaxoSmithKline, LLC. Arikayce, NUCALA, SMARTVEST, 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