Healthcare provider profile · identity verified

Katherine Ann Evans, DO

Allopathic & Osteopathic Physicians|Family Medicine · SIOUX CITY, IA · NPI 1255955308

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 Katherine Ann Evans, DO received $121.36 in general payments during 2025 across 7 reported records.

AstraZeneca Pharmaceuticals LP accounted for 30.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$121.36

7 reported records · 5 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $36.9130.4%22025
ABBVIE INC. Unresolved — no canonical attribution shown $34.6628.6%22025
Hologic Sales and Service, LLC Unresolved — no canonical attribution shown $20.4116.8%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $15.0012.4%12025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $14.3811.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$121.367

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
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $34.66 2 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $34.66 2 2025
Source payment records
APTIMA
Normalized: aptima
Device Hologic Sales and Service, LLC $20.41 1 2025
Source payment records
THINPREP 2000 PROCESSOR
Normalized: thinprep 2000 processor
Device Hologic Sales and Service, LLC $20.41 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $15.00 1 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $14.38 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
21 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 Calcium13956
Levothyroxine SodiumLevothyroxine Sodium13953
LisinoprilLisinopril8031
OmeprazoleOmeprazole7629
Amlodipine BesylateAmlodipine Besylate7329
Pantoprazole SodiumPantoprazole Sodium5522
PrednisonePrednisone5554
HydrochlorothiazideHydrochlorothiazide5219
Metformin HclMetformin Hcl5116
Losartan PotassiumLosartan Potassium4520
Doxycycline MonohydrateDoxycycline Monohydrate4139
AzithromycinAzithromycin3938
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3735
MeloxicamMeloxicam3517
Rosuvastatin CalciumRosuvastatin Calcium3414
FurosemideFurosemide3316
Bupropion XlBupropion Hcl32suppressed
CephalexinCephalexin3231
Sertraline HclSertraline Hcl32suppressed
Tizanidine HclTizanidine Hcl3121
Zolpidem TartrateZolpidem Tartrate30suppressed
GabapentinGabapentin2915
Metoprolol SuccinateMetoprolol Succinate2914
Escitalopram OxalateEscitalopram Oxalate26suppressed
Metformin Hcl ErMetformin Hcl26suppressed
Tramadol HclTramadol Hcl2415
Trazodone HclTrazodone Hcl24suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2316
Alendronate SodiumAlendronate Sodium23suppressed
LorazepamLorazepam2311
SimvastatinSimvastatin23suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2317
OzempicSemaglutide21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2115
Hydroxyzine HclHydroxyzine Hcl20suppressed
Metoprolol TartrateMetoprolol Tartrate20suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2018
Potassium ChloridePotassium Chloride20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Fluoxetine HclFluoxetine Hcl19suppressed
CelecoxibCelecoxib18suppressed
Tamsulosin HclTamsulosin Hcl18suppressed
AlprazolamAlprazolam1713
Ciprofloxacin HclCiprofloxacin Hcl1715
AtenololAtenolol16suppressed
EliquisApixaban16suppressed
Montelukast SodiumMontelukast Sodium16suppressed
CefdinirCefdinir1515
Donepezil HclDonepezil Hcl15suppressed
Meclizine HclMeclizine Hcl15suppressed
BaclofenBaclofen14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
MethylprednisoloneMethylprednisolone1313
Warfarin SodiumWarfarin Sodium13suppressed
Benazepril HclBenazepril Hcl12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
Acetic AcidAcetic Acid11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
EzetimibeEzetimibe11suppressed
FluconazoleFluconazole11suppressed
LevofloxacinLevofloxacin1111
MupirocinMupirocin1111

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 $121.36 · 7 records AstraZeneca Pharmaceuticals LP ACTHAR, APTIMA, QULIPTA, THINPREP 2000 PROCESSOR, UBRELVY, 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