Healthcare provider profile · identity verified

Mark Andrew Hillyer, MD

Family Practice · BOLIVAR, OH · NPI 1649248840

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
Atorvastatin CalciumAtorvastatin Calcium500130
Amlodipine BesylateAmlodipine Besylate356104
Losartan PotassiumLosartan Potassium33881
HydrochlorothiazideHydrochlorothiazide30374
Levothyroxine SodiumLevothyroxine Sodium28975
Rosuvastatin CalciumRosuvastatin Calcium24366
LisinoprilLisinopril22854
Tamsulosin HclTamsulosin Hcl22554
Pantoprazole SodiumPantoprazole Sodium21559
Metformin HclMetformin Hcl20647
OmeprazoleOmeprazole18645
Metoprolol TartrateMetoprolol Tartrate18037
Metoprolol SuccinateMetoprolol Succinate17542
AllopurinolAllopurinol16138
EliquisApixaban15329
SimvastatinSimvastatin14734
PrednisonePrednisone14474
Albuterol Sulfate HfaAlbuterol Sulfate14231
GabapentinGabapentin13932
FurosemideFurosemide13737
Pravastatin SodiumPravastatin Sodium13238
MeloxicamMeloxicam12525
JardianceEmpagliflozin12422
Sertraline HclSertraline Hcl12126
GlimepirideGlimepiride12026
Potassium ChloridePotassium Chloride11837
Metformin Hcl ErMetformin Hcl10929
Duloxetine HclDuloxetine Hcl10019
CarvedilolCarvedilol9826
ClopidogrelClopidogrel Bisulfate9621
Montelukast SodiumMontelukast Sodium9423
LorazepamLorazepam9018
MirtazapineMirtazapine8716
AlprazolamAlprazolam8422
Tramadol HclTramadol Hcl8423
AtenololAtenolol8123
LovastatinLovastatin8119
JanuviaSitagliptin Phosphate7313
ValsartanValsartan7319
Trazodone HclTrazodone Hcl7025
Citalopram HbrCitalopram Hydrobromide6914
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide6418
ClonazepamClonazepam63suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6311
CelecoxibCelecoxib6220
Doxazosin MesylateDoxazosin Mesylate6011
SpironolactoneSpironolactone6012
Escitalopram OxalateEscitalopram Oxalate5714
XareltoRivaroxaban51suppressed
SynthroidLevothyroxine Sodium4814
AzithromycinAzithromycin4340
FinasterideFinasteride4212
Olmesartan MedoxomilOlmesartan Medoxomil4212
CephalexinCephalexin4136
FluconazoleFluconazole3817
Clonidine HclClonidine Hcl36suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol36suppressed
OzempicSemaglutide36suppressed
Venlafaxine Hcl ErVenlafaxine Hcl36suppressed
Doxycycline HyclateDoxycycline Hyclate3531
FamotidineFamotidine35suppressed
PregabalinPregabalin35suppressed
Benazepril HclBenazepril Hcl34suppressed
ChlorthalidoneChlorthalidone33suppressed
Triamcinolone AcetonideTriamcinolone Acetonide33suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide33suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3230
BaclofenBaclofen3223
Esomeprazole MagnesiumEsomeprazole Magnesium32suppressed
Breo ElliptaFluticasone/Vilanterol31suppressed
Fluticasone PropionateFluticasone Propionate3111
Zolpidem TartrateZolpidem Tartrate31suppressed
FarxigaDapagliflozin Propanediol30suppressed
Warfarin SodiumWarfarin Sodium30suppressed
Alendronate SodiumAlendronate Sodium29suppressed
Buspirone HclBuspirone Hcl29suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide29suppressed
Pioglitazone HclPioglitazone Hcl29suppressed
TradjentaLinagliptin28suppressed
Donepezil HclDonepezil Hcl27suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid26suppressed
TrulicityDulaglutide26suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen25suppressed
Quetiapine FumarateQuetiapine Fumarate25suppressed
Glipizide ErGlipizide24suppressed
Hydroxyzine HclHydroxyzine Hcl24suppressed
Nebivolol HclNebivolol Hcl24suppressed
NystatinNystatin24suppressed
OlanzapineOlanzapine24suppressed
AripiprazoleAripiprazole22suppressed
Diltiazem HclDiltiazem Hcl21suppressed
GlipizideGlipizide21suppressed
EntrestoSacubitril/Valsartan20suppressed
JantovenWarfarin Sodium20suppressed
Oxybutynin Chloride ErOxybutynin Chloride20suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2018
Clindamycin HclClindamycin Hcl19suppressed
Labetalol HclLabetalol Hcl19suppressed
Tizanidine HclTizanidine Hcl19suppressed
AmoxicillinAmoxicillin1812
Divalproex SodiumDivalproex Sodium18suppressed
Fluoxetine HclFluoxetine Hcl18suppressed
MupirocinMupirocin18suppressed
Terazosin HclTerazosin Hcl18suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
Unifine PentipsPen Needle, Diabetic18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
Hydroxyzine PamoateHydroxyzine Pamoate17suppressed
JanumetSitagliptin Phos/Metformin Hcl17suppressed
Cholestyramine LightCholestyramine16suppressed
EzetimibeEzetimibe16suppressed
Klor-Con M20Potassium Chloride16suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst16suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters16suppressed
PremarinEstrogens, Conjugated16suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
KetoconazoleKetoconazole15suppressed
Bupropion XlBupropion Hcl14suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate14suppressed
IrbesartanIrbesartan14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
DigoxinDigoxin13suppressed
TorsemideTorsemide13suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1211
Dicyclomine HclDicyclomine Hcl12suppressed
Hydralazine HclHydralazine Hcl12suppressed
LansoprazoleLansoprazole12suppressed
SotalolSotalol Hcl12suppressed
Amitriptyline HclAmitriptyline Hcl11suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip11suppressed
ColchicineColchicine11suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads11suppressed
DuleraMometasone/Formoterol11suppressed
FenofibrateFenofibrate11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
LopressorMetoprolol Tartrate11suppressed
Morphine Sulfate ErMorphine Sulfate11suppressed
Ondansetron HclOndansetron Hcl11suppressed
Paroxetine HclParoxetine Hcl11suppressed
ValacyclovirValacyclovir Hcl11suppressed
Verapamil ErVerapamil 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