Healthcare provider profile · identity verified

Derek Christopher Harshaw, D.O

Internal Medicine · EAST LIVERPOOL, OH · NPI 1588010649

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
FurosemideFurosemide19428
Levothyroxine SodiumLevothyroxine Sodium14022
Pantoprazole SodiumPantoprazole Sodium13624
EliquisApixaban11913
Potassium ChloridePotassium Chloride10524
Atorvastatin CalciumAtorvastatin Calcium10029
Amlodipine BesylateAmlodipine Besylate9120
LisinoprilLisinopril8629
XareltoRivaroxaban81suppressed
SimvastatinSimvastatin65suppressed
Metoprolol TartrateMetoprolol Tartrate6312
Doxycycline HyclateDoxycycline Hyclate6148
CarvedilolCarvedilol56suppressed
Metoprolol SuccinateMetoprolol Succinate5525
Duloxetine HclDuloxetine Hcl53suppressed
GabapentinGabapentin4814
PrednisonePrednisone4539
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4427
Memantine HclMemantine Hcl44suppressed
ClopidogrelClopidogrel Bisulfate42suppressed
Divalproex SodiumDivalproex Sodium41suppressed
Donepezil HclDonepezil Hcl41suppressed
LevetiracetamLevetiracetam39suppressed
JardianceEmpagliflozin37suppressed
Losartan PotassiumLosartan Potassium36suppressed
MirtazapineMirtazapine3511
RisperidoneRisperidone33suppressed
FamotidineFamotidine32suppressed
Hydroxyzine PamoateHydroxyzine Pamoate32suppressed
Metformin HclMetformin Hcl3212
Escitalopram OxalateEscitalopram Oxalate31suppressed
OmeprazoleOmeprazole3011
CefdinirCefdinir2924
Montelukast SodiumMontelukast Sodium29suppressed
Tamsulosin HclTamsulosin Hcl29suppressed
Warfarin SodiumWarfarin Sodium29suppressed
Dicyclomine HclDicyclomine Hcl28suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog27suppressed
NuedextaDextromethorphan Hbr/Quinidine26suppressed
TradjentaLinagliptin26suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen2515
Humalog Kwikpen U-100Insulin Lispro24suppressed
RivastigmineRivastigmine24suppressed
MyrbetriqMirabegron23suppressed
Ondansetron HclOndansetron Hcl2318
IbuprofenIbuprofen22suppressed
FinasterideFinasteride21suppressed
Albuterol Sulfate HfaAlbuterol Sulfate20suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
Ciprofloxacin HclCiprofloxacin Hcl2015
AzithromycinAzithromycin1913
MeloxicamMeloxicam19suppressed
PrimidonePrimidone19suppressed
Sertraline HclSertraline Hcl19suppressed
SucralfateSucralfate19suppressed
Fluticasone PropionateFluticasone Propionate18suppressed
Glipizide ErGlipizide18suppressed
ScopolamineScopolamine18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1712
Hydroxychloroquine SulfateHydroxychloroquine Sulfate17suppressed
Buspirone HclBuspirone Hcl16suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
LorazepamLorazepam1614
Meclizine HclMeclizine Hcl16suppressed
Oxybutynin Chloride ErOxybutynin Chloride16suppressed
RivastigmineRivastigmine Tartrate16suppressed
SpironolactoneSpironolactone16suppressed
Fluvoxamine MaleateFluvoxamine Maleate15suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro15suppressed
NystatinNystatin15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Clonidine HclClonidine Hcl14suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate14suppressed
Propafenone HclPropafenone Hcl14suppressed
SotalolSotalol Hcl14suppressed
Benztropine MesylateBenztropine Mesylate13suppressed
Diltiazem 12hr ErDiltiazem Hcl13suppressed
GlimepirideGlimepiride13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
LinzessLinaclotide13suppressed
Medroxyprogesterone AcetateMedroxyprogesterone Acetate13suppressed
Metoclopramide HclMetoclopramide Hcl13suppressed
Nifedipine ErNifedipine13suppressed
OlanzapineOlanzapine13suppressed
Prazosin HclPrazosin Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Ranolazine ErRanolazine13suppressed
Solifenacin SuccinateSolifenacin Succinate13suppressed
Trazodone HclTrazodone Hcl13suppressed
BrilintaTicagrelor12suppressed
Divalproex Sodium ErDivalproex Sodium12suppressed
EzetimibeEzetimibe12suppressed
Hydralazine HclHydralazine Hcl12suppressed
LamotrigineLamotrigine12suppressed
Alendronate SodiumAlendronate Sodium11suppressed
Carbidopa-LevodopaCarbidopa/Levodopa11suppressed
OzempicSemaglutide11suppressed
Zolpidem TartrateZolpidem Tartrate11suppressed

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