Healthcare provider profile · identity verified

Tonya Knoll, D.O.

Allopathic & Osteopathic Physicians|Family Medicine · HAYS, KS · NPI 1750357547

Profile state: payments and partd 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

CMS Open Payments records show Tonya Knoll, D.O. received $205.39 in general payments during 2025 across 12 reported records.

Amgen Inc. accounted for 52.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Mounjaro.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Mounjaro by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$205.39

12 reported records · 4 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Amgen Inc. Unresolved — no canonical attribution shown $108.6352.9%72025
ABBVIE INC. Unresolved — no canonical attribution shown $56.3227.4%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $22.3110.9%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.138.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$205.3912

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
OTEZLA
Normalized: otezla
Drug Amgen Inc. $73.53 5 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $73.53 5 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $36.87 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $35.10 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $22.31 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $22.31 1 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $19.45 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $18.13 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
MOUNJARO
mounjaro
2025 Mounjaro 2024 14
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS

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
ArexvyRsvpref3 Antigen/As01e/Pf174171
Levothyroxine SodiumLevothyroxine Sodium17047
Atorvastatin CalciumAtorvastatin Calcium13633
Escitalopram OxalateEscitalopram Oxalate9616
ShingrixVaricella-Zoster Ge/As01b/Pf9573
Pantoprazole SodiumPantoprazole Sodium9422
Amlodipine BesylateAmlodipine Besylate9020
Zolpidem TartrateZolpidem Tartrate8416
LisinoprilLisinopril8314
HydrochlorothiazideHydrochlorothiazide7720
Losartan PotassiumLosartan Potassium7115
FurosemideFurosemide6718
Metformin HclMetformin Hcl6616
Sertraline HclSertraline Hcl66suppressed
SimvastatinSimvastatin6414
OmeprazoleOmeprazole6314
AlprazolamAlprazolam5911
GabapentinGabapentin5911
Potassium ChloridePotassium Chloride5617
Metoprolol SuccinateMetoprolol Succinate5411
Venlafaxine Hcl ErVenlafaxine Hcl53suppressed
FenofibrateFenofibrate,micronized5113
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5114
Alendronate SodiumAlendronate Sodium47suppressed
MeloxicamMeloxicam4612
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4311
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf4242
Montelukast SodiumMontelukast Sodium41suppressed
CarvedilolCarvedilol38suppressed
EliquisApixaban38suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3814
OzempicSemaglutide37suppressed
Fluoxetine HclFluoxetine Hcl35suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3124
FamotidineFamotidine31suppressed
AtenololAtenolol29suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2813
Citalopram HbrCitalopram Hydrobromide27suppressed
Rosuvastatin CalciumRosuvastatin Calcium27suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2611
Oxybutynin Chloride ErOxybutynin Chloride26suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2620
AllopurinolAllopurinol25suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen25suppressed
Tramadol HclTramadol Hcl25suppressed
AzithromycinAzithromycin2419
Amitriptyline HclAmitriptyline Hcl22suppressed
SpironolactoneSpironolactone22suppressed
CelecoxibCelecoxib21suppressed
Glipizide ErGlipizide21suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2114
Tamsulosin HclTamsulosin Hcl21suppressed
Trazodone HclTrazodone Hcl21suppressed
Breo ElliptaFluticasone/Vilanterol19suppressed
Paroxetine HclParoxetine Hcl19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
Bupropion XlBupropion Hcl18suppressed
CefdinirCefdinir1814
LansoprazoleLansoprazole18suppressed
Meclizine HclMeclizine Hcl18suppressed
Diltiazem HclDiltiazem Hcl17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
Advair HfaFluticasone Propion/Salmeterol16suppressed
ClonazepamClonazepam16suppressed
LovastatinLovastatin16suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium15suppressed
EstradiolEstradiol15suppressed
Fluticasone PropionateFluticasone Propionate15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
MounjaroTirzepatide14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
ClopidogrelClopidogrel Bisulfate13suppressed
JanumetSitagliptin Phos/Metformin Hcl13suppressed
LevofloxacinLevofloxacin13suppressed
MethylprednisoloneMethylprednisolone1311
TemazepamTemazepam13suppressed
CephalexinCephalexin12suppressed
Fesoterodine Fumarate ErFesoterodine Fumarate12suppressed
JanuviaSitagliptin Phosphate12suppressed
Metoprolol TartrateMetoprolol Tartrate12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
PregabalinPregabalin12suppressed
SucralfateSucralfate12suppressed
Benazepril HclBenazepril Hcl11suppressed
BumetanideBumetanide11suppressed
Buspirone HclBuspirone Hcl11suppressed
Dextroamphetamine Sulfate ErDextroamphetamine Sulfate11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed

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 $205.39 · 12 records Amgen Inc. Cologuard Collection Kit, EVENITY, MOUNJARO, OTEZLA, REPATHA, UBRELVY, VRAYLAR, ZEPBOUND 1
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