Healthcare provider profile · identity verified

Michael Vail Comerford, M.D.

Internal Medicine · SPRINGFIELD, IL · NPI 1497753974

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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/Acetaminophen42073
Atorvastatin CalciumAtorvastatin Calcium32685
Levothyroxine SodiumLevothyroxine Sodium27768
Metoprolol SuccinateMetoprolol Succinate26161
FurosemideFurosemide25065
Pantoprazole SodiumPantoprazole Sodium23055
Tramadol HclTramadol Hcl22942
HydrochlorothiazideHydrochlorothiazide22752
LisinoprilLisinopril22159
AlprazolamAlprazolam22041
Amlodipine BesylateAmlodipine Besylate21862
Losartan PotassiumLosartan Potassium20048
Fluoxetine HclFluoxetine Hcl19342
OmeprazoleOmeprazole19252
Metformin HclMetformin Hcl18844
Tamsulosin HclTamsulosin Hcl18043
GabapentinGabapentin17740
SimvastatinSimvastatin17443
Enalapril MaleateEnalapril Maleate16740
Potassium ChloridePotassium Chloride16634
Albuterol Sulfate HfaAlbuterol Sulfate15435
CelecoxibCelecoxib13634
LorazepamLorazepam13325
MeloxicamMeloxicam11428
Metoprolol TartrateMetoprolol Tartrate11431
Warfarin SodiumWarfarin Sodium11017
PregabalinPregabalin10421
Trazodone HclTrazodone Hcl9725
Escitalopram OxalateEscitalopram Oxalate9321
Testosterone CypionateTestosterone Cypionate9112
Rosuvastatin CalciumRosuvastatin Calcium9024
AllopurinolAllopurinol8925
Doxazosin MesylateDoxazosin Mesylate8719
FamotidineFamotidine8721
GlimepirideGlimepiride8721
MirtazapineMirtazapine8714
Donepezil HclDonepezil Hcl8117
Diclofenac SodiumDiclofenac Sodium7816
Duloxetine HclDuloxetine Hcl7812
Zolpidem TartrateZolpidem Tartrate7520
Sertraline HclSertraline Hcl7219
EliquisApixaban6522
Citalopram HbrCitalopram Hydrobromide64suppressed
CephalexinCephalexin6235
NabumetoneNabumetone59suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl5713
Montelukast SodiumMontelukast Sodium5615
OzempicSemaglutide55suppressed
DiazepamDiazepam5113
IrbesartanIrbesartan5112
SpironolactoneSpironolactone5114
AtenololAtenolol5013
CarvedilolCarvedilol5011
Meclizine HclMeclizine Hcl48suppressed
Pravastatin SodiumPravastatin Sodium4514
AzithromycinAzithromycin4432
ClopidogrelClopidogrel Bisulfate4414
Ropinirole HclRopinirole Hcl42suppressed
Fluticasone PropionateFluticasone Propionate4115
GlipizideGlipizide41suppressed
Ondansetron HclOndansetron Hcl4112
Lantus SolostarInsulin Glargine,hum.Rec.Anlog37suppressed
Buspirone HclBuspirone Hcl36suppressed
ClonazepamClonazepam36suppressed
PrednisonePrednisone3619
Quetiapine FumarateQuetiapine Fumarate36suppressed
Ciprofloxacin HclCiprofloxacin Hcl3520
XareltoRivaroxaban35suppressed
LovastatinLovastatin34suppressed
NystatinNystatin34suppressed
Amitriptyline HclAmitriptyline Hcl31suppressed
Bupropion Hcl SrBupropion Hcl31suppressed
Metformin Hcl ErMetformin Hcl31suppressed
Bupropion XlBupropion Hcl29suppressed
ChlorthalidoneChlorthalidone29suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl29suppressed
Carbamazepine ErCarbamazepine28suppressed
Memantine HclMemantine Hcl28suppressed
Minocycline HclMinocycline Hcl28suppressed
Tizanidine HclTizanidine Hcl28suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2724
EzetimibeEzetimibe27suppressed
LansoprazoleLansoprazole27suppressed
Paroxetine HclParoxetine Hcl27suppressed
MyrbetriqMirabegron26suppressed
AcyclovirAcyclovir25suppressed
AmoxicillinAmoxicillin2513
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25suppressed
Oxybutynin Chloride ErOxybutynin Chloride25suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2518
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)24suppressed
FenofibrateFenofibrate Nanocrystallized24suppressed
Glipizide ErGlipizide24suppressed
JanuviaSitagliptin Phosphate24suppressed
Nifedipine ErNifedipine24suppressed
TemazepamTemazepam24suppressed
Advair HfaFluticasone Propion/Salmeterol23suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
JardianceEmpagliflozin21suppressed
Terazosin HclTerazosin Hcl21suppressed
Acetaminophen-CodeineAcetaminophen With Codeine20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium20suppressed
MounjaroTirzepatide20suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
IbuprofenIbuprofen19suppressed
Ondansetron OdtOndansetron19suppressed
SulindacSulindac19suppressed
Doxepin HclDoxepin Hcl18suppressed
Sildenafil CitrateSildenafil Citrate18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
Dicyclomine HclDicyclomine Hcl17suppressed
HydrocortisoneHydrocortisone17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
BelsomraSuvorexant16suppressed
CalcitriolCalcitriol16suppressed
FenofibrateFenofibrate16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
PremarinEstrogens, Conjugated16suppressed
RivastigmineRivastigmine16suppressed
Verapamil SrVerapamil Hcl16suppressed
FentanylFentanyl15suppressed
FluconazoleFluconazole15suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1514
Oxybutynin ChlorideOxybutynin Chloride15suppressed
Benazepril HclBenazepril Hcl14suppressed
Methylphenidate ErMethylphenidate Hcl14suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine13suppressed
Clindamycin HclClindamycin Hcl13suppressed
FarxigaDapagliflozin Propanediol13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide13suppressed
Methylphenidate HclMethylphenidate Hcl13suppressed
Solifenacin SuccinateSolifenacin Succinate13suppressed
CarisoprodolCarisoprodol12suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate12suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
Hydralazine HclHydralazine Hcl12suppressed
LamotrigineLamotrigine12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
TrulicityDulaglutide12suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide11suppressed
Butalb-Acetaminoph-Caff-CodeinButalbit/Acetamin/Caff/Codeine11suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
Morphine Sulfate ErMorphine Sulfate11suppressed
RizatriptanRizatriptan Benzoate11suppressed
TorsemideTorsemide11suppressed
ValacyclovirValacyclovir 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
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