Healthcare provider profile · identity verified

Robert Douglas Grigg, PA

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · CHICO, CA · NPI 1407371941

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 Douglas Grigg, PA received $981.50 in general payments during 2025 across 52 reported records.

ABBVIE INC. accounted for 20.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 27 associated products.

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

ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Synthroid 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 SHINGRIX as an associated drug or biological on 43515 records involving 26794 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Shingrix 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 56 claims for Trelegy Ellipta 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 78 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 24 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 38 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 24 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

$981.50

52 reported records · 16 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
ABBVIE INC. Unresolved — no canonical attribution shown $204.0720.8%152025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $160.2716.3%22025
Amgen Inc. Unresolved — no canonical attribution shown $144.7814.8%112025
Dexcom, Inc. Unresolved — no canonical attribution shown $87.128.9%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $74.817.6%42025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $48.715.0%22025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $35.823.6%22025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $33.403.4%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $32.583.3%22025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $29.413.0%22025
PFIZER INC. Unresolved — no canonical attribution shown $29.193.0%12025
Tarsus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $25.652.6%12025
Bausch & Lomb Americas Inc. Unresolved — no canonical attribution shown $19.482.0%12025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $19.242.0%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $18.621.9%12025
Viatris Specialty LLC Unresolved — no canonical attribution shown $18.351.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$981.5052

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
CREON
Normalized: creon
Drug ABBVIE INC. $174.61 13 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $139.08 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $139.08 1 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $88.73 7 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $87.12 3 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $83.23 5 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $83.23 5 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $74.81 4 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $74.81 4 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $61.55 6 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $48.71 2 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $35.82 2 2025
Source payment records
  • 2025-01-30 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.26 · Open Payments source
  • 2025-11-03 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.56 · Open Payments source
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $33.40 3 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $32.58 2 2025
Source payment records
INJECTAFER
Normalized: injectafer
Drug Daiichi Sankyo Inc. $29.41 2 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $29.19 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $29.19 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $29.19 1 2025
Source payment records
XDEMVY
Normalized: xdemvy
Drug Tarsus Pharmaceuticals, Inc. $25.65 1 2025
Source payment records
INFUSE
Normalized: infuse
Device Bausch & Lomb Americas Inc. $19.48 1 2025
Source payment records
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE
Normalized: flublok quadrivalent northern hemisphere
Biological SANOFI PASTEUR INC. $19.24 1 2025
Source payment records
FLUZONE HIGH-DOSE
Normalized: fluzone high dose
Biological SANOFI PASTEUR INC. $19.24 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $18.62 1 2025
Source payment records
YUPELRI
Normalized: yupelri
Drug Viatris Specialty LLC $18.35 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $14.94 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $14.94 1 2025
Source payment records
MAVYRET
Normalized: mavyret
Drug ABBVIE INC. $14.52 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
Ozempic
ozempic
2025 Ozempic 2024 78 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 24
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 56 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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
51 15
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 SHINGRIX
open payments reported associated product
CMS Open Payments — General Payments
43515 supporting records · 26794 recipient NPIs · example record 1190332452
Shingrix · 2024
Exact normalized brand match · 1 Part D row
11 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
56 14
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
78 18
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
24 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
38 13
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
24 22

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/Acetaminophen42151
Levothyroxine SodiumLevothyroxine Sodium33998
Atorvastatin CalciumAtorvastatin Calcium335107
Amlodipine BesylateAmlodipine Besylate24175
Losartan PotassiumLosartan Potassium22766
GabapentinGabapentin20260
OmeprazoleOmeprazole19669
LisinoprilLisinopril19159
Metformin HclMetformin Hcl15044
Tamsulosin HclTamsulosin Hcl14950
Trazodone HclTrazodone Hcl13338
Montelukast SodiumMontelukast Sodium13047
Pantoprazole SodiumPantoprazole Sodium13039
Metoprolol SuccinateMetoprolol Succinate12941
Albuterol Sulfate HfaAlbuterol Sulfate11960
Rosuvastatin CalciumRosuvastatin Calcium11634
HydrochlorothiazideHydrochlorothiazide10736
FurosemideFurosemide10532
SimvastatinSimvastatin10130
AzithromycinAzithromycin8379
AlprazolamAlprazolam8116
FamotidineFamotidine8130
EzetimibeEzetimibe7925
OzempicSemaglutide7818
JardianceEmpagliflozin7524
PrednisonePrednisone7562
BaclofenBaclofen7432
MounjaroTirzepatide7313
Potassium ChloridePotassium Chloride6923
Escitalopram OxalateEscitalopram Oxalate6820
Pravastatin SodiumPravastatin Sodium6820
Tramadol HclTramadol Hcl6811
Sertraline HclSertraline Hcl6517
MeloxicamMeloxicam6323
PregabalinPregabalin6120
AllopurinolAllopurinol5919
CarvedilolCarvedilol5917
CephalexinCephalexin5852
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5614
Metoprolol TartrateMetoprolol Tartrate5518
SynthroidLevothyroxine Sodium5115
Repatha SureclickEvolocumab50suppressed
Buspirone HclBuspirone Hcl45suppressed
Memantine HclMemantine Hcl4514
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4442
FinasterideFinasteride4416
Benazepril HclBenazepril Hcl4212
Fluticasone PropionateFluticasone Propionate4214
Citalopram HbrCitalopram Hydrobromide4111
Zolpidem TartrateZolpidem Tartrate4112
Metformin Hcl ErMetformin Hcl4013
ClopidogrelClopidogrel Bisulfate3911
AtenololAtenolol3812
Duloxetine HclDuloxetine Hcl3811
EliquisApixaban3813
IbuprofenIbuprofen37suppressed
MirtazapineMirtazapine3713
Oxybutynin Chloride ErOxybutynin Chloride3713
Ondansetron OdtOndansetron3618
Bupropion XlBupropion Hcl3412
ValacyclovirValacyclovir Hcl3416
Venlafaxine Hcl ErVenlafaxine Hcl33suppressed
DiazepamDiazepam3211
LorazepamLorazepam31suppressed
Ropinirole HclRopinirole Hcl31suppressed
BelsomraSuvorexant30suppressed
IrbesartanIrbesartan28suppressed
CefuroximeCefuroxime Axetil2723
Azelastine HclAzelastine Hcl2618
CelecoxibCelecoxib26suppressed
SpironolactoneSpironolactone26suppressed
Paroxetine HclParoxetine Hcl25suppressed
Fluoxetine HclFluoxetine Hcl24suppressed
GlimepirideGlimepiride24suppressed
Glipizide ErGlipizide24suppressed
PaxlovidNirmatrelvir/Ritonavir2422
Propranolol HclPropranolol Hcl24suppressed
RybelsusSemaglutide24suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2418
ValsartanValsartan24suppressed
Hydroxyzine HclHydroxyzine Hcl2318
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2316
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid23suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog22suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
Meclizine HclMeclizine Hcl22suppressed
LovastatinLovastatin21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl20suppressed
Donepezil HclDonepezil Hcl20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
Tizanidine HclTizanidine Hcl20suppressed
AcyclovirAcyclovir19suppressed
Alendronate SodiumAlendronate Sodium19suppressed
ChlorthalidoneChlorthalidone19suppressed
Diclofenac SodiumDiclofenac Sodium19suppressed
JanuviaSitagliptin Phosphate19suppressed
Olmesartan MedoxomilOlmesartan Medoxomil19suppressed
Terazosin HclTerazosin Hcl19suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa18suppressed
Doxycycline HyclateDoxycycline Hyclate1817
Flecainide AcetateFlecainide Acetate18suppressed
TemazepamTemazepam18suppressed
LactuloseLactulose17suppressed
Dicyclomine HclDicyclomine Hcl16suppressed
KerendiaFinerenone16suppressed
Methenamine HippurateMethenamine Hippurate16suppressed
MethylprednisoloneMethylprednisolone1616
Sumatriptan SuccinateSumatriptan Succinate16suppressed
Alfuzosin Hcl ErAlfuzosin Hcl15suppressed
Amiodarone HclAmiodarone Hcl15suppressed
FenofibrateFenofibrate15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
MethotrexateMethotrexate Sodium15suppressed
Pioglitazone HclPioglitazone Hcl15suppressed
ScopolamineScopolamine15suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
AmoxicillinAmoxicillin1413
Breo ElliptaFluticasone/Vilanterol14suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1414
Quetiapine FumarateQuetiapine Fumarate14suppressed
Clonidine HclClonidine Hcl13suppressed
Ipratropium BromideIpratropium Bromide13suppressed
MethocarbamolMethocarbamol13suppressed
MyrbetriqMirabegron13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
RizatriptanRizatriptan Benzoate13suppressed
SucralfateSucralfate13suppressed
Azelastine-FluticasoneAzelastine/Fluticasone12suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl12suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium12suppressed
EstradiolEstradiol12suppressed
GlipizideGlipizide12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Raloxifene HclRaloxifene Hcl12suppressed
TrulicityDulaglutide12suppressed
Bupropion Hcl SrBupropion Hcl11suppressed
Cromolyn SodiumCromolyn Sodium11suppressed
FluconazoleFluconazole11suppressed
KetoconazoleKetoconazole11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
Liothyronine SodiumLiothyronine Sodium11suppressed
Omnipod Dash Pods (Gen 4)Insulin Pump Cart,cont Inf,bt11suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf11suppressed

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 $981.50 · 52 records ABBVIE INC. ABRYSVO, AIRSUPRA, BREZTRI, CAPVAXIVE, COMIRNATY, CREON, Dexcom G6 Transmitter, EVENITY, FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE, FLUZONE HIGH-DOSE, INFUSE, INJECTAFER, LINZESS, MAVYRET, OTEZLA, Ozempic, PREVNAR 20, QULIPTA, REPATHA, Rybelsus, TRELEGY ELLIPTA, The Cologuard Plus Collection Kit, UBRELVY, VOQUEZNA, XDEMVY, XIFAXAN, YUPELRI 7
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