Healthcare provider profile · identity verified

Jon Knudsen, NP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · VISALIA, CA · NPI 1871985333

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 Jon Knudsen, NP received $313.06 in general payments during 2025 across 4 reported records.

Biosense Webster, Inc. accounted for 47.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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

Boehringer Ingelheim Pharmaceuticals, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Jardiance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$313.06

4 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
Biosense Webster, Inc. Unresolved — no canonical attribution shown $147.0847.0%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $110.7135.4%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $37.0311.8%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.245.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$313.064

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
NUVISION ICE CATHETER
Normalized: nuvision ice catheter
Device Biosense Webster, Inc. $147.08 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $110.71 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $37.03 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $18.24 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
JARDIANCE
jardiance
2025 Jardiance 2024 11
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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
11 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
Atorvastatin CalciumAtorvastatin Calcium13348
LisinoprilLisinopril9530
Amlodipine BesylateAmlodipine Besylate9426
GabapentinGabapentin8625
Losartan PotassiumLosartan Potassium7321
Metformin HclMetformin Hcl5921
Albuterol Sulfate HfaAlbuterol Sulfate5622
Levothyroxine SodiumLevothyroxine Sodium5617
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen52suppressed
OmeprazoleOmeprazole4717
Alendronate SodiumAlendronate Sodium4212
Metoprolol SuccinateMetoprolol Succinate4112
SimvastatinSimvastatin4112
FamotidineFamotidine35suppressed
JanuviaSitagliptin Phosphate32suppressed
HydrochlorothiazideHydrochlorothiazide3011
Rosuvastatin CalciumRosuvastatin Calcium2812
FurosemideFurosemide27suppressed
Combivent RespimatIpratropium/Albuterol Sulfate25suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
GlipizideGlipizide23suppressed
Tamsulosin HclTamsulosin Hcl22suppressed
JanumetSitagliptin Phos/Metformin Hcl21suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
Breo ElliptaFluticasone/Vilanterol20suppressed
ChlorthalidoneChlorthalidone20suppressed
GlimepirideGlimepiride20suppressed
Montelukast SodiumMontelukast Sodium20suppressed
PrednisonePrednisone2017
EliquisApixaban19suppressed
Fluticasone PropionateFluticasone Propionate18suppressed
Pantoprazole SodiumPantoprazole Sodium17suppressed
Nifedipine ErNifedipine16suppressed
Potassium ChloridePotassium Chloride16suppressed
CephalexinCephalexin13suppressed
EzetimibeEzetimibe13suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
Pioglitazone HclPioglitazone Hcl13suppressed
Diclofenac SodiumDiclofenac Sodium12suppressed
Hydralazine HclHydralazine Hcl12suppressed
IbuprofenIbuprofen12suppressed
LinzessLinaclotide12suppressed
LoperamideLoperamide Hcl12suppressed
AlprazolamAlprazolam11suppressed
CarvedilolCarvedilol11suppressed
CelecoxibCelecoxib11suppressed
ClopidogrelClopidogrel Bisulfate11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
JardianceEmpagliflozin11suppressed

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 $313.06 · 4 records Biosense Webster, Inc. Cologuard Collection Kit, JARDIANCE, NUVISION ICE CATHETER, Wegovy 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