Healthcare provider profile · identity verified

Ernesto Herfter, MD

Allopathic & Osteopathic Physicians|Family Medicine · DENVER, CO · NPI 1659325710

Profile state: payments and partd 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

CMS Open Payments records show Ernesto Herfter, MD received $165.30 in general payments during 2025 across 3 reported records.

Amgen Inc. accounted for 73.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$165.30

3 reported records · 3 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Amgen Inc. Unresolved — no canonical attribution shown $122.2273.9%12025
ViiV Healthcare Company Unresolved — no canonical attribution shown $28.4017.2%12025
Indivior Inc. Unresolved — no canonical attribution shown $14.688.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$165.303

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $122.22 1 2025
Source payment records
APRETUDE
Normalized: apretude
Drug ViiV Healthcare Company $28.40 1 2025
Source payment records
SUBLOCADE
Normalized: sublocade
Drug Indivior Inc. $14.68 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium377114
Amlodipine BesylateAmlodipine Besylate20759
Metformin HclMetformin Hcl17646
Tamsulosin HclTamsulosin Hcl16853
Losartan PotassiumLosartan Potassium16542
Levothyroxine SodiumLevothyroxine Sodium16353
Metoprolol SuccinateMetoprolol Succinate13540
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13436
OmeprazoleOmeprazole12731
Pantoprazole SodiumPantoprazole Sodium12337
GabapentinGabapentin12235
Rosuvastatin CalciumRosuvastatin Calcium12142
HydrochlorothiazideHydrochlorothiazide10928
Trazodone HclTrazodone Hcl10627
LisinoprilLisinopril9230
EliquisApixaban8719
Tramadol HclTramadol Hcl8020
Albuterol Sulfate HfaAlbuterol Sulfate6832
FinasterideFinasteride6818
Escitalopram OxalateEscitalopram Oxalate6614
XareltoRivaroxaban6415
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen5912
DutasterideDutasteride5717
Oxycodone HclOxycodone Hcl53suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5217
AllopurinolAllopurinol5114
ClopidogrelClopidogrel Bisulfate5112
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen51suppressed
DiazepamDiazepam49suppressed
MeloxicamMeloxicam47suppressed
ClonazepamClonazepam46suppressed
Fluoxetine HclFluoxetine Hcl46suppressed
Sertraline HclSertraline Hcl4612
Zolpidem TartrateZolpidem Tartrate44suppressed
OzempicSemaglutide43suppressed
PregabalinPregabalin43suppressed
FamotidineFamotidine41suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog41suppressed
Potassium ChloridePotassium Chloride40suppressed
FurosemideFurosemide3814
Quetiapine FumarateQuetiapine Fumarate38suppressed
MyrbetriqMirabegron37suppressed
Sumatriptan SuccinateSumatriptan Succinate37suppressed
AlprazolamAlprazolam34suppressed
Doxepin HclDoxepin Hcl34suppressed
Bupropion XlBupropion Hcl33suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol32suppressed
Terazosin HclTerazosin Hcl30suppressed
CarvedilolCarvedilol29suppressed
MirtazapineMirtazapine29suppressed
Metformin Hcl ErMetformin Hcl28suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2720
JardianceEmpagliflozin26suppressed
Warfarin SodiumWarfarin Sodium26suppressed
Montelukast SodiumMontelukast Sodium25suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Hydroxyzine HclHydroxyzine Hcl24suppressed
NitroglycerinNitroglycerin24suppressed
SimvastatinSimvastatin24suppressed
SymbicortBudesonide/Formoterol Fumarate24suppressed
LorazepamLorazepam23suppressed
Metoprolol TartrateMetoprolol Tartrate23suppressed
Acetaminophen-CodeineAcetaminophen With Codeine2214
Amitriptyline HclAmitriptyline Hcl22suppressed
Olmesartan MedoxomilOlmesartan Medoxomil22suppressed
Pravastatin SodiumPravastatin Sodium22suppressed
SpironolactoneSpironolactone22suppressed
EstradiolEstradiol21suppressed
EszopicloneEszopiclone21suppressed
TrulicityDulaglutide21suppressed
Buspirone HclBuspirone Hcl20suppressed
Diclofenac SodiumDiclofenac Sodium20suppressed
Fluticasone PropionateFluticasone Propionate20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium19suppressed
Tizanidine HclTizanidine Hcl19suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril17suppressed
Ventolin HfaAlbuterol Sulfate17suppressed
Donepezil HclDonepezil Hcl16suppressed
HydrocortisoneHydrocortisone16suppressed
CephalexinCephalexin1515
AtenololAtenolol14suppressed
FenofibrateFenofibrate Nanocrystallized14suppressed
GemfibrozilGemfibrozil14suppressed
GlipizideGlipizide14suppressed
Alfuzosin Hcl ErAlfuzosin Hcl13suppressed
Nortriptyline HclNortriptyline Hcl13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
MounjaroTirzepatide12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed
AcyclovirAcyclovir11suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
GlimepirideGlimepiride11suppressed
Glipizide ErGlipizide11suppressed
Ondansetron OdtOndansetron11suppressed

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 $165.30 · 3 records Amgen Inc. APRETUDE, SUBLOCADE, TAVNEOS
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