Healthcare provider profile · identity verified

Matthew Cameron Rumsey, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · PAWHUSKA, OK · NPI 1326334657

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 Matthew Cameron Rumsey, M.D. received $82.09 in general payments during 2025 across 4 reported records.

Novartis Pharmaceuticals Corporation accounted for 33.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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 48 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$82.09

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
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $27.7433.8%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $24.5929.9%12025
PFIZER INC. Unresolved — no canonical attribution shown $14.9318.2%12025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $14.8318.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$82.094

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
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $27.74 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $24.59 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $14.93 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $14.93 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $14.93 1 2025
Source payment records
TRINTELLIX
Normalized: trintellix
Drug Takeda Pharmaceuticals U.S.A., Inc. $14.83 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
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
48 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
GabapentinGabapentin23659
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen23146
Atorvastatin CalciumAtorvastatin Calcium21859
Levothyroxine SodiumLevothyroxine Sodium21148
OmeprazoleOmeprazole18147
LisinoprilLisinopril16143
Metformin HclMetformin Hcl15539
Pantoprazole SodiumPantoprazole Sodium13932
HydrochlorothiazideHydrochlorothiazide13233
Montelukast SodiumMontelukast Sodium13226
Tamsulosin HclTamsulosin Hcl11323
Losartan PotassiumLosartan Potassium11131
Duloxetine HclDuloxetine Hcl10024
MeloxicamMeloxicam9229
Trazodone HclTrazodone Hcl9221
Amlodipine BesylateAmlodipine Besylate8928
Fluoxetine HclFluoxetine Hcl8616
BaclofenBaclofen8218
Albuterol Sulfate HfaAlbuterol Sulfate8124
PregabalinPregabalin7924
FurosemideFurosemide7734
OzempicSemaglutide7216
Cyclobenzaprine HclCyclobenzaprine Hcl6314
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen6114
Esomeprazole MagnesiumEsomeprazole Magnesium56suppressed
Metoprolol SuccinateMetoprolol Succinate5611
Potassium ChloridePotassium Chloride5620
MirtazapineMirtazapine5416
MounjaroTirzepatide5411
Bupropion XlBupropion Hcl5216
Sertraline HclSertraline Hcl5216
Oxybutynin ChlorideOxybutynin Chloride5011
Tramadol HclTramadol Hcl4919
EliquisApixaban48suppressed
Buspirone HclBuspirone Hcl4612
Pravastatin SodiumPravastatin Sodium46suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4613
Metformin Hcl ErMetformin Hcl4514
PrednisonePrednisone4527
Zolpidem TartrateZolpidem Tartrate4412
CarvedilolCarvedilol4313
Glipizide ErGlipizide42suppressed
ClopidogrelClopidogrel Bisulfate4112
Paroxetine HclParoxetine Hcl39suppressed
IbuprofenIbuprofen38suppressed
AzithromycinAzithromycin3734
Oxycodone HclOxycodone Hcl3714
Fluticasone PropionateFluticasone Propionate3612
Rosuvastatin CalciumRosuvastatin Calcium35suppressed
LorazepamLorazepam34suppressed
Tizanidine HclTizanidine Hcl32suppressed
Amitriptyline HclAmitriptyline Hcl31suppressed
FenofibrateFenofibrate Nanocrystallized31suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog31suppressed
SpironolactoneSpironolactone3111
ValsartanValsartan31suppressed
Venlafaxine Hcl ErVenlafaxine Hcl31suppressed
Klor-Con M20Potassium Chloride3011
CephalexinCephalexin2923
FinasterideFinasteride29suppressed
Metoprolol TartrateMetoprolol Tartrate2914
SimvastatinSimvastatin29suppressed
Ventolin HfaAlbuterol Sulfate29suppressed
Citalopram HbrCitalopram Hydrobromide28suppressed
AllopurinolAllopurinol27suppressed
Clonidine HclClonidine Hcl27suppressed
Escitalopram OxalateEscitalopram Oxalate27suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide25suppressed
Diclofenac SodiumDiclofenac Sodium24suppressed
Quetiapine FumarateQuetiapine Fumarate24suppressed
TorsemideTorsemide24suppressed
Ropinirole HclRopinirole Hcl23suppressed
SynthroidLevothyroxine Sodium23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2219
ClonazepamClonazepam22suppressed
Propranolol HclPropranolol Hcl22suppressed
Donepezil HclDonepezil Hcl21suppressed
Ondansetron HclOndansetron Hcl21suppressed
Ondansetron OdtOndansetron21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide21suppressed
EstradiolEstradiol20suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst20suppressed
Promethazine HclPromethazine Hcl20suppressed
Repatha SureclickEvolocumab20suppressed
Acetaminophen-CodeineAcetaminophen With Codeine19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
AripiprazoleAripiprazole18suppressed
AtenololAtenolol18suppressed
Ciprofloxacin HclCiprofloxacin Hcl1817
Novolog FlexpenInsulin Aspart1811
SucralfateSucralfate18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
Doxepin HclDoxepin Hcl17suppressed
Doxycycline HyclateDoxycycline Hyclate17suppressed
JanuviaSitagliptin Phosphate17suppressed
Tresiba Flextouch U-100Insulin Degludec17suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
Hydralazine HclHydralazine Hcl16suppressed
Nifedipine ErNifedipine16suppressed
JardianceEmpagliflozin15suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride15suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
CelecoxibCelecoxib14suppressed
EzetimibeEzetimibe14suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)14suppressed
FenofibrateFenofibrate,micronized13suppressed
LevofloxacinLevofloxacin1311
LoperamideLoperamide Hcl13suppressed
NortrelNorethindrone-Ethin. Estradiol13suppressed
AlprazolamAlprazolam12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
Humulin R U-500 KwikpenInsulin Regular, Human12suppressed
Levemir FlexpenInsulin Detemir12suppressed
NaproxenNaproxen12suppressed
NystatinNystatin12suppressed
TopiramateTopiramate12suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Verapamil ErVerapamil Hcl11suppressed
Vitamin D2Ergocalciferol (Vitamin D2)11suppressed

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 $82.09 · 4 records Novartis Pharmaceuticals Corporation ABRYSVO, COMIRNATY, FANAPT, LEQVIO, PREVNAR 20, TRINTELLIX 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