Healthcare provider profile · identity verified

Frank Paul Knapp, M.D.

Family Practice · LAKEWOOD, CO · NPI 1154345429

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 Calcium489148
Levothyroxine SodiumLevothyroxine Sodium30792
LisinoprilLisinopril28289
Amlodipine BesylateAmlodipine Besylate25877
Tamsulosin HclTamsulosin Hcl23780
OmeprazoleOmeprazole21076
SimvastatinSimvastatin19862
Losartan PotassiumLosartan Potassium17052
Rosuvastatin CalciumRosuvastatin Calcium16450
Trazodone HclTrazodone Hcl16455
Metformin HclMetformin Hcl15955
Oxycodone HclOxycodone Hcl15722
GabapentinGabapentin15449
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12537
Albuterol Sulfate HfaAlbuterol Sulfate12451
AllopurinolAllopurinol12336
Metoprolol TartrateMetoprolol Tartrate11336
PradaxaDabigatran Etexilate Mesylate11144
FurosemideFurosemide10943
AtenololAtenolol10532
GlipizideGlipizide10332
MeloxicamMeloxicam10348
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen10017
Alendronate SodiumAlendronate Sodium9429
Pantoprazole SodiumPantoprazole Sodium8432
ArexvyRsvpref3 Antigen/As01e/Pf8080
FinasterideFinasteride7930
Warfarin SodiumWarfarin Sodium7523
Metformin Hcl ErMetformin Hcl7425
OzempicSemaglutide74suppressed
Propranolol HclPropranolol Hcl7222
Tramadol HclTramadol Hcl6817
Metoprolol SuccinateMetoprolol Succinate5618
Doxazosin MesylateDoxazosin Mesylate5518
Duloxetine HclDuloxetine Hcl5521
Triamcinolone AcetonideTriamcinolone Acetonide5427
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5419
Wixela InhubFluticasone Propion/Salmeterol5121
Citalopram HbrCitalopram Hydrobromide5015
Bupropion XlBupropion Hcl4915
CarvedilolCarvedilol4917
FamotidineFamotidine4917
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf4747
Insulin Glargine-YfgnInsulin Glargine-Yfgn4717
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen47suppressed
Potassium ChloridePotassium Chloride4718
HydrochlorothiazideHydrochlorothiazide4513
JardianceEmpagliflozin4316
Fluoxetine HclFluoxetine Hcl4213
ShingrixVaricella-Zoster Ge/As01b/Pf3938
SpironolactoneSpironolactone3815
KetoconazoleKetoconazole3515
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3515
Spiriva RespimatTiotropium Bromide3515
Fluticasone PropionateFluticasone Propionate3312
Ondansetron OdtOndansetron32suppressed
AmoxicillinAmoxicillin3113
Morphine Sulfate ErMorphine Sulfate31suppressed
Humulin NInsulin Nph Human Isophane2812
LovastatinLovastatin28suppressed
NystatinNystatin28suppressed
AlvescoCiclesonide2711
PrednisonePrednisone2618
LorazepamLorazepam25suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml2412
Buspirone HclBuspirone Hcl22suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate2219
EliquisApixaban22suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2115
Sertraline HclSertraline Hcl21suppressed
Humulin RInsulin Regular, Human20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine19suppressed
EzetimibeEzetimibe19suppressed
ClopidogrelClopidogrel Bisulfate18suppressed
MirtazapineMirtazapine18suppressed
Pioglitazone HclPioglitazone Hcl18suppressed
CefuroximeCefuroxime Axetil1716
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1714
ColchicineColchicine16suppressed
Hydralazine HclHydralazine Hcl16suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
AcyclovirAcyclovir15suppressed
LidocaineLidocaine15suppressed
NitroglycerinNitroglycerin1513
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
FenofibrateFenofibrate14suppressed
HumalogInsulin Lispro14suppressed
Hydroxyzine HclHydroxyzine Hcl14suppressed
Promethazine HclPromethazine Hcl14suppressed
CephalexinCephalexin13suppressed
Ropinirole HclRopinirole Hcl13suppressed
Clobetasol PropionateClobetasol Propionate12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
Doxycycline MonohydrateDoxycycline Monohydrate12suppressed
Enoxaparin SodiumEnoxaparin Sodium12suppressed
PregabalinPregabalin12suppressed
RisperidoneRisperidone12suppressed
TadalafilTadalafil12suppressed
Verapamil ErVerapamil Hcl12suppressed
Clorazepate DipotassiumClorazepate Dipotassium11suppressed
EpinephrineEpinephrine11suppressed
HydrocortisoneHydrocortisone11suppressed
IbuprofenIbuprofen11suppressed
Methadone HclMethadone Hcl11suppressed
OlanzapineOlanzapine11suppressed

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