Healthcare provider profile · identity verified

Gretchen G Webb-Kummer, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · OAKDALE, CA · NPI 1356475347

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 Gretchen G Webb-Kummer, M.D. received $210.71 in general payments during 2025 across 11 reported records.

GlaxoSmithKline, LLC. accounted for 33.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Mounjaro, Ozempic, Paxlovid, Rybelsus, Trelegy Ellipta.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Brilinta by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Farxiga 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 30 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Jardiance 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 19 claims for Mounjaro 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Trulicity by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Ozempic by this doctor in 2024.

Novo Nordisk 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Rybelsus by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 73 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$210.71

11 reported records · 7 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 $70.5333.5%42025
PFIZER INC. Unresolved — no canonical attribution shown $37.7617.9%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $24.9011.8%12025
Biogen, Inc. Unresolved — no canonical attribution shown $24.2911.5%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $22.4610.7%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.447.8%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.336.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$210.7111

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. $51.22 3 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $24.90 1 2025
Source payment records
SPINRAZA
Normalized: spinraza
Biological Biogen, Inc. $24.29 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $22.46 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $22.46 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $21.89 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $19.31 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $19.31 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $16.44 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $15.87 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $15.87 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $15.87 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $14.33 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
FARXIGA
farxiga
2025 Farxiga 2024 27
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 19
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
PAXLOVID
paxlovid
2025 Paxlovid 2024 17 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 16
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 30
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
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
30 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
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
19 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
73 15
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
17 17

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 Calcium451133
Levothyroxine SodiumLevothyroxine Sodium33484
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen23843
Amlodipine BesylateAmlodipine Besylate23766
GabapentinGabapentin20745
Losartan PotassiumLosartan Potassium19857
Pantoprazole SodiumPantoprazole Sodium18263
Metformin HclMetformin Hcl16050
HydrochlorothiazideHydrochlorothiazide13737
LisinoprilLisinopril13644
Albuterol Sulfate HfaAlbuterol Sulfate12648
Metoprolol SuccinateMetoprolol Succinate11434
Fluticasone PropionateFluticasone Propionate11342
Tamsulosin HclTamsulosin Hcl10834
AtenololAtenolol10024
FurosemideFurosemide9433
Montelukast SodiumMontelukast Sodium9028
OmeprazoleOmeprazole8623
Tizanidine HclTizanidine Hcl8326
Duloxetine HclDuloxetine Hcl8221
Metoprolol TartrateMetoprolol Tartrate7621
Potassium ChloridePotassium Chloride7517
EliquisApixaban7315
CarvedilolCarvedilol7218
Rosuvastatin CalciumRosuvastatin Calcium6925
PrednisonePrednisone6850
Benazepril HclBenazepril Hcl6521
MirtazapineMirtazapine6417
Hydralazine HclHydralazine Hcl6312
SimvastatinSimvastatin6319
Trazodone HclTrazodone Hcl6217
ValsartanValsartan6118
IbuprofenIbuprofen5715
Pravastatin SodiumPravastatin Sodium5615
FamotidineFamotidine5520
NaproxenNaproxen5513
Fluoxetine HclFluoxetine Hcl5315
ClopidogrelClopidogrel Bisulfate5213
Escitalopram OxalateEscitalopram Oxalate5213
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid50suppressed
Alendronate SodiumAlendronate Sodium4914
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4944
Triamcinolone AcetonideTriamcinolone Acetonide4729
FinasterideFinasteride4616
AlprazolamAlprazolam44suppressed
AzithromycinAzithromycin4439
Zolpidem TartrateZolpidem Tartrate42suppressed
Meclizine HclMeclizine Hcl4011
BaclofenBaclofen39suppressed
RamiprilRamipril39suppressed
LovastatinLovastatin3712
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen36suppressed
Buspirone HclBuspirone Hcl3513
Clonidine HclClonidine Hcl3511
EstradiolEstradiol3514
GlimepirideGlimepiride35suppressed
Sertraline HclSertraline Hcl35suppressed
ClonazepamClonazepam34suppressed
LorazepamLorazepam34suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3329
Metformin Hcl ErMetformin Hcl3311
Bupropion XlBupropion Hcl32suppressed
SynthroidLevothyroxine Sodium32suppressed
Amitriptyline HclAmitriptyline Hcl31suppressed
GemfibrozilGemfibrozil31suppressed
Venlafaxine Hcl ErVenlafaxine Hcl31suppressed
AllopurinolAllopurinol30suppressed
Doxycycline MonohydrateDoxycycline Monohydrate3026
Trelegy ElliptaFluticasone/Umeclidin/Vilanter30suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol29suppressed
GlipizideGlipizide29suppressed
JardianceEmpagliflozin29suppressed
Wixela InhubFluticasone Propion/Salmeterol29suppressed
JanuviaSitagliptin Phosphate28suppressed
KetoconazoleKetoconazole2814
XareltoRivaroxaban28suppressed
Diclofenac SodiumDiclofenac Sodium2713
FarxigaDapagliflozin Propanediol27suppressed
ValacyclovirValacyclovir Hcl26suppressed
EzetimibeEzetimibe25suppressed
Liothyronine SodiumLiothyronine Sodium25suppressed
Paroxetine HclParoxetine Hcl25suppressed
Citalopram HbrCitalopram Hydrobromide24suppressed
Donepezil HclDonepezil Hcl24suppressed
Acetaminophen-CodeineAcetaminophen With Codeine23suppressed
ColchicineColchicine23suppressed
FluconazoleFluconazole2315
Clobetasol PropionateClobetasol Propionate22suppressed
Ondansetron HclOndansetron Hcl2216
Oxybutynin Chloride ErOxybutynin Chloride22suppressed
Bupropion Hcl SrBupropion Hcl21suppressed
MeloxicamMeloxicam20suppressed
Tramadol HclTramadol Hcl20suppressed
AmoxicillinAmoxicillin1913
BumetanideBumetanide19suppressed
Ciprofloxacin HclCiprofloxacin Hcl1915
Cyclobenzaprine HclCyclobenzaprine Hcl19suppressed
MounjaroTirzepatide19suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl18suppressed
Ipratropium BromideIpratropium Bromide18suppressed
Nifedipine ErNifedipine17suppressed
PaxlovidNirmatrelvir/Ritonavir1717
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide17suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
RybelsusSemaglutide16suppressed
CephalexinCephalexin15suppressed
Pioglitazone HclPioglitazone Hcl15suppressed
SucralfateSucralfate15suppressed
Warfarin SodiumWarfarin Sodium15suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Mometasone FuroateMometasone Furoate14suppressed
Novolog FlexpenInsulin Aspart14suppressed
Ropinirole HclRopinirole Hcl14suppressed
BrilintaTicagrelor13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
OfloxacinOfloxacin1313
Spiriva HandihalerTiotropium Bromide13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
VascepaIcosapent Ethyl13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine12suppressed
CreonLipase/Protease/Amylase12suppressed
FenofibrateFenofibrate12suppressed
Folic AcidFolic Acid12suppressed
Glipizide ErGlipizide12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
MupirocinMupirocin12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
OzempicSemaglutide12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
TemazepamTemazepam12suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic12suppressed
UrsodiolUrsodiol12suppressed
CarisoprodolCarisoprodol11suppressed
LactuloseLactulose11suppressed
Niacin ErNiacin11suppressed
Propranolol HclPropranolol Hcl11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed
Ranolazine ErRanolazine11suppressed
Solifenacin SuccinateSolifenacin Succinate11suppressed
TrulicityDulaglutide11suppressed

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 $210.71 · 11 records GlaxoSmithKline, LLC. ABRYSVO, AREXVY, COMIRNATY, FARXIGA, LEQVIO, MOUNJARO, Ozempic, PAXLOVID, PREVNAR 20, Rybelsus, SHINGRIX, SPINRAZA, TRELEGY ELLIPTA 10
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