Healthcare provider profile · identity verified

Ami L Siems, M.D.

Family Practice · YUKON, OK · NPI 1255348306

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 Calcium21175
Levothyroxine SodiumLevothyroxine Sodium20267
LisinoprilLisinopril12450
Amlodipine BesylateAmlodipine Besylate12343
GabapentinGabapentin10241
OmeprazoleOmeprazole9634
Metformin HclMetformin Hcl9231
Escitalopram OxalateEscitalopram Oxalate8628
Metoprolol SuccinateMetoprolol Succinate8123
MeloxicamMeloxicam8022
EliquisApixaban7816
Losartan PotassiumLosartan Potassium7522
HydrochlorothiazideHydrochlorothiazide7023
Albuterol Sulfate HfaAlbuterol Sulfate6924
Pantoprazole SodiumPantoprazole Sodium6927
Trazodone HclTrazodone Hcl6518
Tramadol HclTramadol Hcl5516
Potassium ChloridePotassium Chloride5419
MounjaroTirzepatide5314
Metoprolol TartrateMetoprolol Tartrate4614
SimvastatinSimvastatin4614
FurosemideFurosemide4521
Montelukast SodiumMontelukast Sodium4519
Amitriptyline HclAmitriptyline Hcl4311
AlprazolamAlprazolam38suppressed
Pravastatin SodiumPravastatin Sodium3513
Duloxetine HclDuloxetine Hcl3214
FenofibrateFenofibrate32suppressed
ClopidogrelClopidogrel Bisulfate3112
Glipizide ErGlipizide3112
AllopurinolAllopurinol3012
Citalopram HbrCitalopram Hydrobromide30suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2912
Rosuvastatin CalciumRosuvastatin Calcium28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2711
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl26suppressed
AtenololAtenolol25suppressed
Alendronate SodiumAlendronate Sodium23suppressed
Olmesartan MedoxomilOlmesartan Medoxomil23suppressed
SymbicortBudesonide/Formoterol Fumarate23suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol22suppressed
LovastatinLovastatin22suppressed
Sertraline HclSertraline Hcl22suppressed
TrulicityDulaglutide21suppressed
Fluticasone PropionateFluticasone Propionate20suppressed
Ondansetron HclOndansetron Hcl20suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
Tamsulosin HclTamsulosin Hcl20suppressed
CarvedilolCarvedilol19suppressed
EstradiolEstradiol19suppressed
GlipizideGlipizide19suppressed
Metformin Hcl ErMetformin Hcl19suppressed
Tizanidine HclTizanidine Hcl19suppressed
EzetimibeEzetimibe18suppressed
Propranolol HclPropranolol Hcl18suppressed
SynthroidLevothyroxine Sodium18suppressed
TemazepamTemazepam18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide18suppressed
ValacyclovirValacyclovir Hcl18suppressed
GemfibrozilGemfibrozil17suppressed
ValsartanValsartan17suppressed
Bupropion XlBupropion Hcl16suppressed
JanuviaSitagliptin Phosphate16suppressed
Buspirone HclBuspirone Hcl15suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
IbuprofenIbuprofen15suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
LorazepamLorazepam15suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15suppressed
Ciprofloxacin HclCiprofloxacin Hcl1414
Hydroxyzine HclHydroxyzine Hcl14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Verapamil ErVerapamil Hcl14suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
FluconazoleFluconazole13suppressed
JardianceEmpagliflozin13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
Zolpidem TartrateZolpidem Tartrate13suppressed
CelecoxibCelecoxib12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide11suppressed
Ondansetron OdtOndansetron11suppressed
PrednisonePrednisone1111
SpironolactoneSpironolactone11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed

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