Healthcare provider profile · identity verified

Robert D Grimshaw, DO

Allopathic & Osteopathic Physicians|Family Medicine · BIRCH RUN, MI · NPI 1174562912

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 D Grimshaw, DO received $61.16 in general payments during 2025 across 4 reported records.

Exact Sciences Corporation accounted for 30.3% 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: Ozempic, Rybelsus.

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 13 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 25 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$61.16

4 reported records · 4 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
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.5330.3%12025
Abbott Laboratories Unresolved — no canonical attribution shown $14.4823.7%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $14.4823.7%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $13.6722.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$61.164

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
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $18.53 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $14.48 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $14.48 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $13.67 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $13.67 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 13
Beneficiary count suppressed
exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 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
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
13 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
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
Rosuvastatin CalciumRosuvastatin Calcium414128
Atorvastatin CalciumAtorvastatin Calcium388109
Metformin HclMetformin Hcl36699
LisinoprilLisinopril361102
Amlodipine BesylateAmlodipine Besylate31587
OmeprazoleOmeprazole27780
Losartan PotassiumLosartan Potassium27481
Levothyroxine SodiumLevothyroxine Sodium27166
JardianceEmpagliflozin23255
Metoprolol SuccinateMetoprolol Succinate19861
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18934
Pantoprazole SodiumPantoprazole Sodium18149
SimvastatinSimvastatin14636
Tamsulosin HclTamsulosin Hcl14343
FurosemideFurosemide13540
EliquisApixaban13439
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12933
Metoprolol TartrateMetoprolol Tartrate12537
Glipizide ErGlipizide11733
TrulicityDulaglutide11420
Potassium ChloridePotassium Chloride10430
GabapentinGabapentin10127
AllopurinolAllopurinol9726
Escitalopram OxalateEscitalopram Oxalate9729
Venlafaxine Hcl ErVenlafaxine Hcl8919
Albuterol Sulfate HfaAlbuterol Sulfate8639
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8526
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8423
HydrochlorothiazideHydrochlorothiazide7925
Isosorbide Mononitrate ErIsosorbide Mononitrate7723
Lantus SolostarInsulin Glargine,hum.Rec.Anlog7525
Metformin Hcl ErMetformin Hcl7521
CarvedilolCarvedilol7423
PrednisonePrednisone7443
ClopidogrelClopidogrel Bisulfate7118
MounjaroTirzepatide6213
Duloxetine HclDuloxetine Hcl5415
Pravastatin SodiumPravastatin Sodium5315
Montelukast SodiumMontelukast Sodium5113
Tramadol HclTramadol Hcl5111
EzetimibeEzetimibe4818
Novolog FlexpenInsulin Aspart4815
FamotidineFamotidine4517
Trazodone HclTrazodone Hcl4513
Alendronate SodiumAlendronate Sodium4319
NystatinNystatin43suppressed
Pioglitazone HclPioglitazone Hcl4312
Donepezil HclDonepezil Hcl4212
GlipizideGlipizide4115
Sertraline HclSertraline Hcl4113
AtenololAtenolol3913
BaclofenBaclofen3819
IbuprofenIbuprofen3611
MeloxicamMeloxicam3615
Citalopram HbrCitalopram Hydrobromide32suppressed
Ropinirole HclRopinirole Hcl32suppressed
SpironolactoneSpironolactone31suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril28suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol28suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic28suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic28suppressed
Fluticasone PropionateFluticasone Propionate2711
LovastatinLovastatin25suppressed
MetolazoneMetolazone25suppressed
RybelsusSemaglutide25suppressed
Betamethasone DipropionateBetamethasone Dipropionate24suppressed
Hydralazine HclHydralazine Hcl24suppressed
Warfarin SodiumWarfarin Sodium24suppressed
FarxigaDapagliflozin Propanediol23suppressed
Meclizine HclMeclizine Hcl2313
GlimepirideGlimepiride22suppressed
AlprazolamAlprazolam21suppressed
Humalog Kwikpen U-100Insulin Lispro2111
InvokanaCanagliflozin21suppressed
Oxybutynin Chloride ErOxybutynin Chloride21suppressed
Paroxetine HclParoxetine Hcl21suppressed
PregabalinPregabalin21suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip20suppressed
Enalapril MaleateEnalapril Maleate20suppressed
LansoprazoleLansoprazole20suppressed
Ondansetron OdtOndansetron2013
AcyclovirAcyclovir18suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate18suppressed
FinasterideFinasteride18suppressed
Repatha SureclickEvolocumab18suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1814
AripiprazoleAripiprazole17suppressed
AzithromycinAzithromycin1716
Memantine HclMemantine Hcl17suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
LevetiracetamLevetiracetam16suppressed
NitroglycerinNitroglycerin1611
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
BumetanideBumetanide15suppressed
RamiprilRamipril15suppressed
Bupropion XlBupropion Hcl14suppressed
ClonazepamClonazepam14suppressed
FenofibrateFenofibrate,micronized14suppressed
KetoconazoleKetoconazole14suppressed
Quetiapine FumarateQuetiapine Fumarate14suppressed
FluconazoleFluconazole1311
Morphine Sulfate ErMorphine Sulfate13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
OzempicSemaglutide13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
Dilt-XrDiltiazem Hcl12suppressed
DofetilideDofetilide12suppressed
LidocaineLidocaine12suppressed
MirtazapineMirtazapine12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1211
Ventolin HfaAlbuterol Sulfate12suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med11suppressed
Buspirone HclBuspirone 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 $61.16 · 4 records Exact Sciences Corporation Dexcom G6 Transmitter, FREESTYLE LIBRE 3, Ozempic, Rybelsus, The Cologuard Plus Collection Kit 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