Healthcare provider profile · identity verified

Robert Gabriel Feldman, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · LAGUNA HILLS, CA · NPI 1194805416

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 Robert Gabriel Feldman, M.D. received $254,289.03 in general payments during 2025 across 364 reported records.

GlaxoSmithKline, LLC. accounted for 48.3% 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: Prolia.

Amgen 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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Prolia by this doctor in 2024.

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

$254,289.03

364 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 $122,757.0548.3%1352025
Amgen Inc. Unresolved — no canonical attribution shown $116,066.5845.6%2172025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $15,465.406.1%122025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$195,101.0080
Travel and Lodging$52,205.14195
Food and Beverage$6,974.9388
Education$7.961

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
EVENITY
Normalized: evenity
Biological Amgen Inc. $116,066.58 217 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $98,767.73 108 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $23,997.57 28 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $15,465.40 12 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $72.38 4 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
PROLIA
prolia
2025 Prolia 2024 36 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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
36 21
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
Metoprolol SuccinateMetoprolol Succinate44993
Pantoprazole SodiumPantoprazole Sodium432129
Montelukast SodiumMontelukast Sodium407103
Rosuvastatin CalciumRosuvastatin Calcium391100
Amlodipine BesylateAmlodipine Besylate35982
Atorvastatin CalciumAtorvastatin Calcium30484
Levothyroxine SodiumLevothyroxine Sodium26263
Fluticasone PropionateFluticasone Propionate23897
LisinoprilLisinopril21153
Escitalopram OxalateEscitalopram Oxalate20053
Losartan PotassiumLosartan Potassium16135
Memantine HclMemantine Hcl15830
Trazodone HclTrazodone Hcl15034
Buspirone HclBuspirone Hcl12834
MirtazapineMirtazapine12726
HydrochlorothiazideHydrochlorothiazide12330
Bupropion XlBupropion Hcl12135
Pravastatin SodiumPravastatin Sodium11625
Potassium ChloridePotassium Chloride11533
Metformin Hcl ErMetformin Hcl11427
PrednisonePrednisone10779
XareltoRivaroxaban10720
ClopidogrelClopidogrel Bisulfate10530
FamotidineFamotidine10141
Donepezil HclDonepezil Hcl10023
Risedronate SodiumRisedronate Sodium9530
OmeprazoleOmeprazole7821
Pioglitazone HclPioglitazone Hcl7720
AlprazolamAlprazolam7640
ValsartanValsartan7518
SynthroidLevothyroxine Sodium6820
FinasterideFinasteride6721
FurosemideFurosemide6524
EliquisApixaban6317
Tamsulosin HclTamsulosin Hcl6018
AllopurinolAllopurinol5814
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5721
Ciprofloxacin HclCiprofloxacin Hcl5546
Ibandronate SodiumIbandronate Sodium5415
Metformin HclMetformin Hcl5315
CelecoxibCelecoxib4917
Ipratropium BromideIpratropium Bromide4824
Alendronate SodiumAlendronate Sodium4512
Albuterol Sulfate HfaAlbuterol Sulfate4433
AzithromycinAzithromycin4439
IrbesartanIrbesartan44suppressed
Duloxetine HclDuloxetine Hcl4312
GabapentinGabapentin4318
Nebivolol HclNebivolol Hcl4211
Olmesartan MedoxomilOlmesartan Medoxomil42suppressed
RamiprilRamipril4111
Triamcinolone AcetonideTriamcinolone Acetonide4127
Sertraline HclSertraline Hcl40suppressed
Zolpidem TartrateZolpidem Tartrate4018
JanuviaSitagliptin Phosphate3912
NaproxenNaproxen3925
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid3912
EzetimibeEzetimibe36suppressed
ProliaDenosumab3621
SimvastatinSimvastatin3612
Midodrine HclMidodrine Hcl34suppressed
ValacyclovirValacyclovir Hcl3414
LevofloxacinLevofloxacin3023
Fluticasone-SalmeterolFluticasone Propion/Salmeterol2713
Paroxetine HclParoxetine Hcl27suppressed
FluocinonideFluocinonide26suppressed
CarvedilolCarvedilol25suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter25suppressed
AtenololAtenolol24suppressed
CephalexinCephalexin2419
DigoxinDigoxin24suppressed
Galantamine HbrGalantamine Hbr24suppressed
Wixela InhubFluticasone Propion/Salmeterol2412
Diclofenac SodiumDiclofenac Sodium23suppressed
Galantamine ErGalantamine Hbr23suppressed
LorazepamLorazepam23suppressed
RivastigmineRivastigmine22suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
EstradiolEstradiol21suppressed
PaxlovidNirmatrelvir/Ritonavir2121
Amiodarone HclAmiodarone Hcl20suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
Tramadol HclTramadol Hcl20suppressed
EntrestoSacubitril/Valsartan19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
Memantine Hcl ErMemantine Hcl19suppressed
Ondansetron HclOndansetron Hcl1912
AripiprazoleAripiprazole18suppressed
GlimepirideGlimepiride18suppressed
KetoconazoleKetoconazole18suppressed
ClonidineClonidine17suppressed
MyrbetriqMirabegron17suppressed
Vitamin D2Ergocalciferol (Vitamin D2)17suppressed
TemazepamTemazepam16suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Ventolin HfaAlbuterol Sulfate15suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1411
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
RisperidoneRisperidone14suppressed
Repatha SureclickEvolocumab13suppressed
SilodosinSilodosin13suppressed
AmoxicillinAmoxicillin12suppressed
Azelastine HclAzelastine Hcl12suppressed
DapsoneDapsone11suppressed
Folic AcidFolic Acid11suppressed
MupirocinMupirocin11suppressed
Np ThyroidThyroid,pork11suppressed
Raloxifene HclRaloxifene Hcl11suppressed
TymlosAbaloparatide11suppressed

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 $254,289.03 · 364 records GlaxoSmithKline, LLC. AREXVY, CAPVAXIVE, EVENITY, PROLIA, SHINGRIX 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