Healthcare provider profile · identity verified

David H Lookner, M.D.

Internal Medicine · BOULDER, CO · NPI 1326175308

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 Calcium744209
LisinoprilLisinopril32497
Amlodipine BesylateAmlodipine Besylate26978
SimvastatinSimvastatin25066
OmeprazoleOmeprazole24078
Tamsulosin HclTamsulosin Hcl23075
Levothyroxine SodiumLevothyroxine Sodium22263
Rosuvastatin CalciumRosuvastatin Calcium21872
Losartan PotassiumLosartan Potassium20959
PradaxaDabigatran Etexilate Mesylate16452
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15951
Metoprolol TartrateMetoprolol Tartrate14247
GabapentinGabapentin13643
AllopurinolAllopurinol12035
Metformin HclMetformin Hcl12031
Alendronate SodiumAlendronate Sodium11845
Oxycodone HclOxycodone Hcl11023
Potassium ChloridePotassium Chloride10832
Pantoprazole SodiumPantoprazole Sodium10133
FinasterideFinasteride8529
ArexvyRsvpref3 Antigen/As01e/Pf7979
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7624
Albuterol Sulfate HfaAlbuterol Sulfate7340
HydrochlorothiazideHydrochlorothiazide6819
Trazodone HclTrazodone Hcl6727
Metoprolol SuccinateMetoprolol Succinate6521
Duloxetine HclDuloxetine Hcl6420
AtenololAtenolol6319
AlvescoCiclesonide6129
Warfarin SodiumWarfarin Sodium5819
Zolpidem TartrateZolpidem Tartrate58suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf5757
GlipizideGlipizide5517
Fluticasone PropionateFluticasone Propionate5428
FurosemideFurosemide5421
Fluoxetine HclFluoxetine Hcl5218
LovastatinLovastatin5014
Spiriva RespimatTiotropium Bromide5017
Triamcinolone AcetonideTriamcinolone Acetonide4828
MirtazapineMirtazapine4711
Tramadol HclTramadol Hcl4413
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen41suppressed
LorazepamLorazepam40suppressed
FamotidineFamotidine39suppressed
CarvedilolCarvedilol37suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl3711
MeloxicamMeloxicam3715
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3633
ClopidogrelClopidogrel Bisulfate3513
Repatha SureclickEvolocumab35suppressed
EzetimibeEzetimibe3412
Wixela InhubFluticasone Propion/Salmeterol3311
AcyclovirAcyclovir3116
Doxazosin MesylateDoxazosin Mesylate31suppressed
Sertraline HclSertraline Hcl31suppressed
PrednisonePrednisone2923
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid29suppressed
Citalopram HbrCitalopram Hydrobromide27suppressed
Metformin Hcl ErMetformin Hcl26suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf2323
Morphine Sulfate ErMorphine Sulfate22suppressed
Bupropion XlBupropion Hcl21suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
NitroglycerinNitroglycerin2015
Dextroamphetamine Sulfate ErDextroamphetamine Sulfate19suppressed
Humulin NInsulin Nph Human Isophane19suppressed
ChlorthalidoneChlorthalidone18suppressed
EstradiolEstradiol18suppressed
Ondansetron OdtOndansetron18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
TestosteroneTestosterone18suppressed
TorsemideTorsemide18suppressed
ValacyclovirValacyclovir Hcl17suppressed
HydrocortisoneHydrocortisone16suppressed
Doxycycline HyclateDoxycycline Hyclate1513
EliquisApixaban15suppressed
ClonazepamClonazepam14suppressed
Montelukast SodiumMontelukast Sodium14suppressed
OzempicSemaglutide14suppressed
Sumatriptan SuccinateSumatriptan Succinate14suppressed
AlprazolamAlprazolam13suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1312
Escitalopram OxalateEscitalopram Oxalate13suppressed
CelecoxibCelecoxib12suppressed
Dicloxacillin SodiumDicloxacillin Sodium12suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn12suppressed
KetoconazoleKetoconazole12suppressed
LatanoprostLatanoprost12suppressed
RamelteonRamelteon12suppressed
SpironolactoneSpironolactone12suppressed
AmoxicillinAmoxicillin11suppressed
ColchicineColchicine11suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate11suppressed
DigoxinDigoxin11suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml11suppressed
Methadone HclMethadone Hcl11suppressed
OxycontinOxycodone 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