Healthcare provider profile · identity verified

Mary J Olson, M.D.

Family Practice · VERMILLION, SD · NPI 1013914597

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 Calcium16675
Levothyroxine SodiumLevothyroxine Sodium14551
OmeprazoleOmeprazole13642
LisinoprilLisinopril9435
Amlodipine BesylateAmlodipine Besylate8734
GabapentinGabapentin8121
Potassium ChloridePotassium Chloride7824
Metoprolol SuccinateMetoprolol Succinate6525
Escitalopram OxalateEscitalopram Oxalate6326
HydrochlorothiazideHydrochlorothiazide6132
FurosemideFurosemide5819
Losartan PotassiumLosartan Potassium5523
Metformin HclMetformin Hcl5122
Rosuvastatin CalciumRosuvastatin Calcium4821
SimvastatinSimvastatin4521
Trazodone HclTrazodone Hcl4211
Metoprolol TartrateMetoprolol Tartrate4116
Metformin Hcl ErMetformin Hcl3915
Tamsulosin HclTamsulosin Hcl38suppressed
Buspirone HclBuspirone Hcl3713
EliquisApixaban37suppressed
SpironolactoneSpironolactone36suppressed
Warfarin SodiumWarfarin Sodium3511
Alendronate SodiumAlendronate Sodium3416
OzempicSemaglutide32suppressed
Sertraline HclSertraline Hcl30suppressed
Donepezil HclDonepezil Hcl28suppressed
Bupropion XlBupropion Hcl2713
Diltiazem 24hr Er (Cd)Diltiazem Hcl26suppressed
Pravastatin SodiumPravastatin Sodium25suppressed
AtenololAtenolol24suppressed
Tramadol HclTramadol Hcl24suppressed
MeloxicamMeloxicam2313
Enalapril MaleateEnalapril Maleate2115
FinasterideFinasteride21suppressed
AllopurinolAllopurinol19suppressed
Fluticasone PropionateFluticasone Propionate19suppressed
MirtazapineMirtazapine19suppressed
CarvedilolCarvedilol17suppressed
Citalopram HbrCitalopram Hydrobromide17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
FenofibrateFenofibrate17suppressed
Oxybutynin ChlorideOxybutynin Chloride17suppressed
AcyclovirAcyclovir16suppressed
EzetimibeEzetimibe16suppressed
LovastatinLovastatin16suppressed
JanuviaSitagliptin Phosphate15suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
FamotidineFamotidine14suppressed
NystatinNystatin14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Pantoprazole SodiumPantoprazole Sodium14suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
MetolazoneMetolazone13suppressed
Ondansetron OdtOndansetron13suppressed
BaclofenBaclofen12suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog12suppressed
ClopidogrelClopidogrel Bisulfate12suppressed
Glipizide ErGlipizide12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
JardianceEmpagliflozin11suppressed
Memantine HclMemantine 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