Healthcare provider profile · identity verified

John Laird Oehler, D.O.

Family Practice · BUCYRUS, OH · NPI 1801974431

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 Calcium633166
Amlodipine BesylateAmlodipine Besylate36995
LisinoprilLisinopril33584
Losartan PotassiumLosartan Potassium32683
FamotidineFamotidine30578
Metformin Hcl ErMetformin Hcl30381
Levothyroxine SodiumLevothyroxine Sodium23953
OmeprazoleOmeprazole21351
Metoprolol SuccinateMetoprolol Succinate19654
EzetimibeEzetimibe19547
Albuterol Sulfate HfaAlbuterol Sulfate16948
Fluticasone PropionateFluticasone Propionate12945
Potassium ChloridePotassium Chloride12130
Montelukast SodiumMontelukast Sodium11933
Rosuvastatin CalciumRosuvastatin Calcium11730
Pantoprazole SodiumPantoprazole Sodium11228
Tamsulosin HclTamsulosin Hcl11230
Pravastatin SodiumPravastatin Sodium11131
FurosemideFurosemide9423
MirtazapineMirtazapine9123
FarxigaDapagliflozin Propanediol8514
HydrochlorothiazideHydrochlorothiazide8222
Alendronate SodiumAlendronate Sodium8122
AllopurinolAllopurinol8123
Metformin HclMetformin Hcl7922
Fluoxetine HclFluoxetine Hcl7716
GlimepirideGlimepiride6811
Metoprolol TartrateMetoprolol Tartrate6818
Nifedipine ErNifedipine6516
CarvedilolCarvedilol6116
EliquisApixaban5412
Hydralazine HclHydralazine Hcl5313
Paroxetine HclParoxetine Hcl5113
Pioglitazone HclPioglitazone Hcl5114
Spiriva RespimatTiotropium Bromide5115
ClopidogrelClopidogrel Bisulfate5014
JardianceEmpagliflozin50suppressed
Trazodone HclTrazodone Hcl5014
Clonidine HclClonidine Hcl4711
SpironolactoneSpironolactone4611
Sertraline HclSertraline Hcl4512
Warfarin SodiumWarfarin Sodium4315
Doxazosin MesylateDoxazosin Mesylate4011
FenofibrateFenofibrate Nanocrystallized40suppressed
Escitalopram OxalateEscitalopram Oxalate39suppressed
Ipratropium BromideIpratropium Bromide3813
Buspirone HclBuspirone Hcl37suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate35suppressed
NateglinideNateglinide32suppressed
SimvastatinSimvastatin30suppressed
AtenololAtenolol29suppressed
FinasterideFinasteride29suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter29suppressed
Ondansetron OdtOndansetron28suppressed
ChlorthalidoneChlorthalidone27suppressed
Donepezil HclDonepezil Hcl27suppressed
MeloxicamMeloxicam27suppressed
Amitriptyline HclAmitriptyline Hcl26suppressed
Citalopram HbrCitalopram Hydrobromide26suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid26suppressed
Meclizine HclMeclizine Hcl25suppressed
Glipizide ErGlipizide24suppressed
JanuviaSitagliptin Phosphate24suppressed
SucralfateSucralfate24suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2317
Enalapril MaleateEnalapril Maleate22suppressed
Ibandronate SodiumIbandronate Sodium22suppressed
Bupropion XlBupropion Hcl21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
Oxybutynin Chloride ErOxybutynin Chloride20suppressed
Dicyclomine HclDicyclomine Hcl19suppressed
Duloxetine HclDuloxetine Hcl19suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl19suppressed
Ropinirole HclRopinirole Hcl19suppressed
Raloxifene HclRaloxifene Hcl18suppressed
Combivent RespimatIpratropium/Albuterol Sulfate17suppressed
MupirocinMupirocin1712
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Doxycycline HyclateDoxycycline Hyclate1614
LovastatinLovastatin16suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
SymbicortBudesonide/Formoterol Fumarate15suppressed
SynthroidLevothyroxine Sodium15suppressed
Klor-Con M10Potassium Chloride14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
MethylprednisoloneMethylprednisolone13suppressed
RamiprilRamipril13suppressed
ValsartanValsartan13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav12suppressed
Hydroxyzine PamoateHydroxyzine Pamoate12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
NaproxenNaproxen12suppressed
NystatinNystatin12suppressed
Ondansetron HclOndansetron Hcl12suppressed
TrulicityDulaglutide12suppressed
XareltoRivaroxaban12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
CephalexinCephalexin11suppressed
VascepaIcosapent Ethyl11suppressed

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