Healthcare provider profile · identity verified

Robert V Klaasen, M.D.

Family Practice · HERMITAGE, TN · NPI 1760457329

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 Calcium227112
Rosuvastatin CalciumRosuvastatin Calcium17976
Amlodipine BesylateAmlodipine Besylate17583
Levothyroxine SodiumLevothyroxine Sodium13166
OmeprazoleOmeprazole11159
LisinoprilLisinopril8445
GabapentinGabapentin7639
HydrochlorothiazideHydrochlorothiazide7539
Pantoprazole SodiumPantoprazole Sodium7138
Trazodone HclTrazodone Hcl7131
Metformin HclMetformin Hcl6829
ValsartanValsartan6831
Metoprolol SuccinateMetoprolol Succinate6328
Losartan PotassiumLosartan Potassium6132
Albuterol Sulfate HfaAlbuterol Sulfate5332
Escitalopram OxalateEscitalopram Oxalate5321
FurosemideFurosemide5121
Tamsulosin HclTamsulosin Hcl5023
Duloxetine HclDuloxetine Hcl4817
Metformin Hcl ErMetformin Hcl4720
EliquisApixaban4513
Sertraline HclSertraline Hcl4522
PregabalinPregabalin4313
Tramadol HclTramadol Hcl4213
Trelegy ElliptaFluticasone/Umeclidin/Vilanter3816
Montelukast SodiumMontelukast Sodium3620
Fluticasone PropionateFluticasone Propionate3521
Metoprolol TartrateMetoprolol Tartrate3521
Alendronate SodiumAlendronate Sodium3420
Bupropion XlBupropion Hcl3414
Donepezil HclDonepezil Hcl33suppressed
PrednisonePrednisone3223
XareltoRivaroxaban32suppressed
CephalexinCephalexin3124
SpironolactoneSpironolactone3118
CarvedilolCarvedilol3013
Potassium ChloridePotassium Chloride2913
CelecoxibCelecoxib2814
ClopidogrelClopidogrel Bisulfate2717
FarxigaDapagliflozin Propanediol27suppressed
MeloxicamMeloxicam2713
MounjaroTirzepatide26suppressed
Olmesartan MedoxomilOlmesartan Medoxomil26suppressed
CefdinirCefdinir2523
EzetimibeEzetimibe2414
SimvastatinSimvastatin2414
AlprazolamAlprazolam2311
JardianceEmpagliflozin23suppressed
MupirocinMupirocin2316
Buspirone HclBuspirone Hcl22suppressed
TopiramateTopiramate22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
Ondansetron OdtOndansetron2014
Zolpidem TartrateZolpidem Tartrate20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide19suppressed
GlimepirideGlimepiride18suppressed
Pravastatin SodiumPravastatin Sodium17suppressed
FinasterideFinasteride16suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr13suppressed
AzithromycinAzithromycin1311
Hydroxyzine HclHydroxyzine Hcl13suppressed
JanuviaSitagliptin Phosphate13suppressed
LansoprazoleLansoprazole13suppressed
MethocarbamolMethocarbamol12suppressed
TelmisartanTelmisartan12suppressed
SucralfateSucralfate11suppressed
Tizanidine HclTizanidine Hcl11suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid11suppressed
VraylarCariprazine 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