Healthcare provider profile · identity verified

Katerina Christopherson, MD

Family Practice · GERMANTOWN, WI · NPI 1700345527

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 Calcium15547
Levothyroxine SodiumLevothyroxine Sodium14946
Amlodipine BesylateAmlodipine Besylate12246
LisinoprilLisinopril10738
Losartan PotassiumLosartan Potassium9831
Rosuvastatin CalciumRosuvastatin Calcium8830
GabapentinGabapentin8424
Metformin HclMetformin Hcl8330
SimvastatinSimvastatin7726
Pantoprazole SodiumPantoprazole Sodium7118
MeloxicamMeloxicam6819
HydrochlorothiazideHydrochlorothiazide6323
Metoprolol SuccinateMetoprolol Succinate5419
OmeprazoleOmeprazole5015
Tamsulosin HclTamsulosin Hcl4711
Alendronate SodiumAlendronate Sodium4211
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4116
Sertraline HclSertraline Hcl4114
Metformin Hcl ErMetformin Hcl4015
TrulicityDulaglutide39suppressed
Escitalopram OxalateEscitalopram Oxalate3813
Metoprolol TartrateMetoprolol Tartrate37suppressed
Tizanidine HclTizanidine Hcl3719
AllopurinolAllopurinol3612
FurosemideFurosemide36suppressed
Duloxetine HclDuloxetine Hcl34suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3217
EliquisApixaban32suppressed
Fluticasone PropionateFluticasone Propionate2912
Oxybutynin Chloride ErOxybutynin Chloride29suppressed
JardianceEmpagliflozin28suppressed
Tramadol HclTramadol Hcl2811
Citalopram HbrCitalopram Hydrobromide26suppressed
Donepezil HclDonepezil Hcl26suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate26suppressed
LorazepamLorazepam25suppressed
Potassium ChloridePotassium Chloride25suppressed
AtenololAtenolol24suppressed
OzempicSemaglutide23suppressed
Buspirone HclBuspirone Hcl22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
GlimepirideGlimepiride21suppressed
SpironolactoneSpironolactone21suppressed
AlprazolamAlprazolam20suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
Hydralazine HclHydralazine Hcl20suppressed
Niacin ErNiacin19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
Pravastatin SodiumPravastatin Sodium1811
TorsemideTorsemide18suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
JanuviaSitagliptin Phosphate17suppressed
SymbicortBudesonide/Formoterol Fumarate17suppressed
ClonazepamClonazepam16suppressed
ClopidogrelClopidogrel Bisulfate16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
Hydroxyzine HclHydroxyzine Hcl14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
Zolpidem TartrateZolpidem Tartrate14suppressed
LevetiracetamLevetiracetam13suppressed
Memantine HclMemantine Hcl13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1211
Bupropion XlBupropion Hcl12suppressed
Clonidine HclClonidine Hcl12suppressed
EszopicloneEszopiclone12suppressed
FarxigaDapagliflozin Propanediol12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
MirtazapineMirtazapine12suppressed
MounjaroTirzepatide12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
FamotidineFamotidine11suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11suppressed
Toujeo 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
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