Healthcare provider profile · identity verified

Ann T Klein, MD

Family Practice · GREENWOOD VILLAGE, CO · NPI 1003861261

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 Calcium16448
Levothyroxine SodiumLevothyroxine Sodium14637
Losartan PotassiumLosartan Potassium11631
Rosuvastatin CalciumRosuvastatin Calcium10936
Amlodipine BesylateAmlodipine Besylate10331
OmeprazoleOmeprazole7225
LisinoprilLisinopril6219
GabapentinGabapentin5317
Duloxetine HclDuloxetine Hcl5014
Metoprolol SuccinateMetoprolol Succinate5014
Alendronate SodiumAlendronate Sodium4918
Sertraline HclSertraline Hcl4814
OzempicSemaglutide46suppressed
SpironolactoneSpironolactone4213
MounjaroTirzepatide41suppressed
Trazodone HclTrazodone Hcl4117
HydrochlorothiazideHydrochlorothiazide39suppressed
JardianceEmpagliflozin39suppressed
Venlafaxine Hcl ErVenlafaxine Hcl35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3416
AllopurinolAllopurinol34suppressed
Pravastatin SodiumPravastatin Sodium32suppressed
FamotidineFamotidine29suppressed
Bupropion XlBupropion Hcl28suppressed
EstradiolEstradiol2816
Tramadol HclTramadol Hcl28suppressed
Escitalopram OxalateEscitalopram Oxalate27suppressed
Metformin Hcl ErMetformin Hcl27suppressed
Olmesartan MedoxomilOlmesartan Medoxomil26suppressed
Metoprolol TartrateMetoprolol Tartrate25suppressed
SynthroidLevothyroxine Sodium25suppressed
MyrbetriqMirabegron23suppressed
FurosemideFurosemide22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
Ipratropium BromideIpratropium Bromide2111
Potassium ChloridePotassium Chloride21suppressed
Candesartan CilexetilCandesartan Cilexetil20suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Metformin HclMetformin Hcl19suppressed
AtenololAtenolol17suppressed
CarvedilolCarvedilol17suppressed
Fluticasone PropionateFluticasone Propionate16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
MeloxicamMeloxicam16suppressed
Montelukast SodiumMontelukast Sodium16suppressed
CelecoxibCelecoxib15suppressed
DiazepamDiazepam15suppressed
SimvastatinSimvastatin15suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
MupirocinMupirocin13suppressed
Ondansetron OdtOndansetron12suppressed
Prochlorperazine MaleateProchlorperazine Maleate12suppressed
Ropinirole HclRopinirole Hcl12suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl11suppressed
Verapamil ErVerapamil 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