Healthcare provider profile · identity verified

Michael M Murphy, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · SPRINGFIELD, IL · NPI 1922217629

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 Michael M Murphy, M.D. received $146.62 in general payments during 2025 across 1 reported records.

Amgen Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$146.62

1 reported records · 1 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
Amgen Inc. Unresolved — no canonical attribution shown $146.62100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$146.621

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
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $146.62 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium31179
Albuterol Sulfate HfaAlbuterol Sulfate28984
OmeprazoleOmeprazole28070
Tizanidine HclTizanidine Hcl25466
Metoprolol TartrateMetoprolol Tartrate23463
Amlodipine BesylateAmlodipine Besylate20652
FamotidineFamotidine16438
Diclofenac SodiumDiclofenac Sodium16048
FurosemideFurosemide15543
LisinoprilLisinopril15241
GabapentinGabapentin14939
CarvedilolCarvedilol14130
Venlafaxine Hcl ErVenlafaxine Hcl13831
ClonazepamClonazepam13622
Metformin HclMetformin Hcl13238
Amitriptyline HclAmitriptyline Hcl12928
Fluticasone PropionateFluticasone Propionate12842
Levothyroxine SodiumLevothyroxine Sodium11024
EliquisApixaban10623
Potassium ChloridePotassium Chloride10021
Sertraline HclSertraline Hcl9420
AllopurinolAllopurinol9328
Losartan PotassiumLosartan Potassium9027
Triamcinolone AcetonideTriamcinolone Acetonide8331
Tramadol HclTramadol Hcl8222
MirtazapineMirtazapine8117
HydrochlorothiazideHydrochlorothiazide8021
Tamsulosin HclTamsulosin Hcl7815
BumetanideBumetanide7511
CelecoxibCelecoxib7527
CarbamazepineCarbamazepine7220
LovastatinLovastatin7220
MeloxicamMeloxicam7225
Metoprolol SuccinateMetoprolol Succinate7225
OlanzapineOlanzapine7114
PrednisonePrednisone7129
SpironolactoneSpironolactone7019
Oxybutynin ChlorideOxybutynin Chloride6618
DiazepamDiazepam65suppressed
RisperidoneRisperidone6414
FentanylFentanyl60suppressed
Propranolol Hcl ErPropranolol Hcl5612
Ondansetron HclOndansetron Hcl5414
ClopidogrelClopidogrel Bisulfate5213
Montelukast SodiumMontelukast Sodium5212
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl50suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5015
Hydroxyzine HclHydroxyzine Hcl4917
Pantoprazole SodiumPantoprazole Sodium4919
Isosorbide Mononitrate ErIsosorbide Mononitrate4814
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4815
Escitalopram OxalateEscitalopram Oxalate4713
Quetiapine FumarateQuetiapine Fumarate47suppressed
Trazodone HclTrazodone Hcl4713
Benztropine MesylateBenztropine Mesylate45suppressed
Clonidine HclClonidine Hcl45suppressed
OzempicSemaglutide45suppressed
SimvastatinSimvastatin45suppressed
Fluoxetine HclFluoxetine Hcl43suppressed
GlipizideGlipizide43suppressed
Metoclopramide HclMetoclopramide Hcl4214
Lurasidone HclLurasidone Hcl41suppressed
NitroglycerinNitroglycerin4119
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3912
Pioglitazone HclPioglitazone Hcl3912
TopiramateTopiramate3916
Propranolol HclPropranolol Hcl38suppressed
Sumatriptan SuccinateSumatriptan Succinate3611
Hydralazine HclHydralazine Hcl34suppressed
Paroxetine HclParoxetine Hcl34suppressed
Donepezil HclDonepezil Hcl33suppressed
Warfarin SodiumWarfarin Sodium33suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog31suppressed
Bupropion Hcl SrBupropion Hcl30suppressed
JanuviaSitagliptin Phosphate30suppressed
Prazosin HclPrazosin Hcl30suppressed
Citalopram HbrCitalopram Hydrobromide29suppressed
Incruse ElliptaUmeclidinium Bromide29suppressed
Oxybutynin Chloride ErOxybutynin Chloride29suppressed
Bupropion XlBupropion Hcl28suppressed
Advair HfaFluticasone Propion/Salmeterol27suppressed
IbuprofenIbuprofen27suppressed
LorazepamLorazepam27suppressed
NaproxenNaproxen27suppressed
LamotrigineLamotrigine26suppressed
Buspirone HclBuspirone Hcl25suppressed
Duloxetine HclDuloxetine Hcl25suppressed
Rosuvastatin CalciumRosuvastatin Calcium25suppressed
CilostazolCilostazol24suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol24suppressed
ZonisamideZonisamide24suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl22suppressed
Pravastatin SodiumPravastatin Sodium22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter21suppressed
CalcitriolCalcitriol20suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate19suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1913
Acetaminophen-CodeineAcetaminophen With Codeine18suppressed
Doxazosin MesylateDoxazosin Mesylate18suppressed
FluconazoleFluconazole18suppressed
Nifedipine ErNifedipine18suppressed
NystatinNystatin18suppressed
Pyridostigmine BromidePyridostigmine Bromide18suppressed
XareltoRivaroxaban18suppressed
AcyclovirAcyclovir17suppressed
Divalproex SodiumDivalproex Sodium17suppressed
Metformin Hcl ErMetformin Hcl17suppressed
Terazosin HclTerazosin Hcl17suppressed
Tresiba Flextouch U-200Insulin Degludec17suppressed
AtenololAtenolol16suppressed
AzithromycinAzithromycin1615
Carbidopa-LevodopaCarbidopa/Levodopa16suppressed
Doxycycline MonohydrateDoxycycline Monohydrate15suppressed
EntrestoSacubitril/Valsartan15suppressed
LevetiracetamLevetiracetam15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
AlprazolamAlprazolam14suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa14suppressed
CephalexinCephalexin1411
Doxepin HclDoxepin Hcl14suppressed
JardianceEmpagliflozin14suppressed
PentoxifyllinePentoxifylline14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic14suppressed
BrilintaTicagrelor13suppressed
LidocaineLidocaine13suppressed
Novolog Mix 70-30Insulin Aspart Prot/Insuln Asp13suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
BaclofenBaclofen12suppressed
Divalproex Sodium ErDivalproex Sodium12suppressed
FarxigaDapagliflozin Propanediol12suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)12suppressed
LacosamideLacosamide12suppressed
Chlorhexidine GluconateChlorhexidine Gluconate11suppressed
Clindamycin HclClindamycin Hcl11suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
HydrocortisoneHydrocortisone11suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro11suppressed
Meclizine HclMeclizine Hcl11suppressed
MounjaroTirzepatide11suppressed
OxcarbazepineOxcarbazepine11suppressed
Ropinirole HclRopinirole Hcl11suppressed
SucralfateSucralfate11suppressed
SymbicortBudesonide/Formoterol Fumarate11suppressed

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 $146.62 · 1 records Amgen Inc. KRYSTEXXA
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