Healthcare provider profile · identity verified

James P Koller, M.D.

Internal Medicine · COLUMBIA, MO · NPI 1851338586

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
Rosuvastatin CalciumRosuvastatin Calcium31686
Atorvastatin CalciumAtorvastatin Calcium29875
HydrochlorothiazideHydrochlorothiazide27665
Losartan PotassiumLosartan Potassium23252
LisinoprilLisinopril22862
Levothyroxine SodiumLevothyroxine Sodium21946
OmeprazoleOmeprazole19347
Amlodipine BesylateAmlodipine Besylate17839
Tamsulosin HclTamsulosin Hcl17143
GabapentinGabapentin16742
FinasterideFinasteride11128
Fluticasone PropionateFluticasone Propionate10743
Sertraline HclSertraline Hcl10022
Metformin Hcl ErMetformin Hcl9927
Metoprolol SuccinateMetoprolol Succinate8722
SimvastatinSimvastatin7520
Pantoprazole SodiumPantoprazole Sodium7418
Pravastatin SodiumPravastatin Sodium6419
Potassium ChloridePotassium Chloride6317
Escitalopram OxalateEscitalopram Oxalate6214
Metoprolol TartrateMetoprolol Tartrate6116
AtenololAtenolol5813
EliquisApixaban5814
Metformin HclMetformin Hcl5114
FurosemideFurosemide4918
AllopurinolAllopurinol4811
Lantus SolostarInsulin Glargine,hum.Rec.Anlog47suppressed
MounjaroTirzepatide47suppressed
Alendronate SodiumAlendronate Sodium4511
Montelukast SodiumMontelukast Sodium4511
Albuterol Sulfate HfaAlbuterol Sulfate4320
Duloxetine HclDuloxetine Hcl39suppressed
Amitriptyline HclAmitriptyline Hcl3813
ClopidogrelClopidogrel Bisulfate37suppressed
CarvedilolCarvedilol35suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium32suppressed
JardianceEmpagliflozin29suppressed
ClonazepamClonazepam28suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid28suppressed
Donepezil HclDonepezil Hcl27suppressed
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
Zolpidem TartrateZolpidem Tartrate27suppressed
Oxycodone HclOxycodone Hcl26suppressed
Trazodone HclTrazodone Hcl26suppressed
ArexvyRsvpref3 Antigen/As01e/Pf2525
Fluoxetine HclFluoxetine Hcl25suppressed
Citalopram HbrCitalopram Hydrobromide23suppressed
LovastatinLovastatin23suppressed
Doxazosin MesylateDoxazosin Mesylate22suppressed
DutasterideDutasteride22suppressed
EzetimibeEzetimibe22suppressed
FamotidineFamotidine21suppressed
SymbicortBudesonide/Formoterol Fumarate21suppressed
TemazepamTemazepam21suppressed
SpironolactoneSpironolactone18suppressed
TopiramateTopiramate18suppressed
Azelastine HclAzelastine Hcl17suppressed
Felodipine ErFelodipine17suppressed
Nifedipine ErNifedipine17suppressed
Propranolol HclPropranolol Hcl17suppressed
Repatha SureclickEvolocumab17suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
IbuprofenIbuprofen16suppressed
LatanoprostLatanoprost16suppressed
MeloxicamMeloxicam16suppressed
Propranolol Hcl ErPropranolol Hcl16suppressed
SynthroidLevothyroxine Sodium16suppressed
Tramadol HclTramadol Hcl16suppressed
TrulicityDulaglutide16suppressed
Bupropion XlBupropion Hcl15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog14suppressed
ChlorthalidoneChlorthalidone14suppressed
GlipizideGlipizide14suppressed
KetoconazoleKetoconazole14suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa13suppressed
EstradiolEstradiol13suppressed
Humalog Kwikpen U-100Insulin Lispro13suppressed
JanumetSitagliptin Phos/Metformin Hcl13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
Memantine Hcl ErMemantine Hcl13suppressed
OxycontinOxycodone Hcl13suppressed
Aspirin-Dipyridamole ErAspirin/Dipyridamole12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
OzempicSemaglutide12suppressed
XareltoRivaroxaban12suppressed
Arnuity ElliptaFluticasone Furoate11suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed
Mometasone FuroateMometasone Furoate11suppressed

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