Healthcare provider profile · identity verified

Caleb Warren Hirsch, MD

Internal Medicine · WEST HILLS, CA · NPI 1619976800

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
EliquisApixaban27244
Atorvastatin CalciumAtorvastatin Calcium23056
Levothyroxine SodiumLevothyroxine Sodium18532
Quetiapine FumarateQuetiapine Fumarate17022
GabapentinGabapentin16033
Amlodipine BesylateAmlodipine Besylate14141
FurosemideFurosemide12738
Donepezil HclDonepezil Hcl11315
Pantoprazole SodiumPantoprazole Sodium11327
Metoprolol TartrateMetoprolol Tartrate10832
Tamsulosin HclTamsulosin Hcl10529
ClopidogrelClopidogrel Bisulfate9429
Escitalopram OxalateEscitalopram Oxalate9419
Potassium ChloridePotassium Chloride9426
CarvedilolCarvedilol9330
LevetiracetamLevetiracetam88suppressed
LisinoprilLisinopril7119
Metoprolol SuccinateMetoprolol Succinate7124
BaclofenBaclofen70suppressed
FamotidineFamotidine70suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro59suppressed
Heparin SodiumHeparin Sodium,porcine58suppressed
MirtazapineMirtazapine5815
Amiodarone HclAmiodarone Hcl5419
Lantus SolostarInsulin Glargine,hum.Rec.Anlog54suppressed
Memantine HclMemantine Hcl54suppressed
OlanzapineOlanzapine54suppressed
Alendronate SodiumAlendronate Sodium53suppressed
Trazodone HclTrazodone Hcl5313
NuedextaDextromethorphan Hbr/Quinidine52suppressed
Metformin HclMetformin Hcl51suppressed
CephalexinCephalexin5041
Rosuvastatin CalciumRosuvastatin Calcium49suppressed
Hydralazine HclHydralazine Hcl4813
Tramadol HclTramadol Hcl4720
Divalproex SodiumDivalproex Sodium45suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4530
Midodrine HclMidodrine Hcl41suppressed
JardianceEmpagliflozin40suppressed
LatanoprostLatanoprost39suppressed
XareltoRivaroxaban39suppressed
OmeprazoleOmeprazole38suppressed
TopiramateTopiramate37suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip3614
Sodium Chloride0.9 % Sodium Chloride3612
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate35suppressed
Memantine Hcl ErMemantine Hcl35suppressed
SimvastatinSimvastatin35suppressed
Liothyronine SodiumLiothyronine Sodium34suppressed
Nifedipine ErNifedipine34suppressed
DigoxinDigoxin33suppressed
Losartan PotassiumLosartan Potassium32suppressed
Ondansetron HclOndansetron Hcl3217
PremarinEstrogens, Conjugated32suppressed
PrednisonePrednisone3122
PregabalinPregabalin31suppressed
RisperidoneRisperidone31suppressed
Duloxetine HclDuloxetine Hcl30suppressed
EzetimibeEzetimibe29suppressed
SucralfateSucralfate29suppressed
Albuterol SulfateAlbuterol Sulfate28suppressed
Fluticasone PropionateFluticasone Propionate28suppressed
Ipratropium BromideIpratropium Bromide28suppressed
ProgesteroneProgesterone, Micronized28suppressed
BudesonideBudesonide27suppressed
Sertraline HclSertraline Hcl27suppressed
LansoprazoleLansoprazole26suppressed
Enoxaparin SodiumEnoxaparin Sodium25suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2414
Vancomycin HclVancomycin Hcl2413
Zolpidem TartrateZolpidem Tartrate23suppressed
Buspirone HclBuspirone Hcl22suppressed
Diltiazem 24hr ErDiltiazem Hcl22suppressed
PentasaMesalamine22suppressed
Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol21suppressed
ClonazepamClonazepam20suppressed
ProcritEpoetin Alfa20suppressed
Carbidopa-LevodopaCarbidopa/Levodopa19suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium19suppressed
FinasterideFinasteride19suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen1911
Clobetasol PropionateClobetasol Propionate18suppressed
GlimepirideGlimepiride18suppressed
SpironolactoneSpironolactone18suppressed
ColchicineColchicine17suppressed
EntacaponeEntacapone17suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended17suppressed
RetacritEpoetin Alfa-Epbx17suppressed
CyclosporineCyclosporine16suppressed
Divalproex Sodium ErDivalproex Sodium16suppressed
EpogenEpoetin Alfa16suppressed
LactuloseLactulose16suppressed
EstradiolEstradiol15suppressed
IbuprofenIbuprofen15suppressed
MupirocinMupirocin1511
OxcarbazepineOxcarbazepine15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Chlorhexidine GluconateChlorhexidine Gluconate14suppressed
Citalopram HbrCitalopram Hydrobromide14suppressed
FarxigaDapagliflozin Propanediol14suppressed
Labetalol HclLabetalol Hcl14suppressed
LidocaineLidocaine14suppressed
LinzessLinaclotide14suppressed
LovastatinLovastatin14suppressed
Montelukast SodiumMontelukast Sodium14suppressed
ValsartanValsartan14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Arnuity ElliptaFluticasone Furoate13suppressed
AzithromycinAzithromycin1313
Diltiazem HclDiltiazem Hcl13suppressed
Humulin RInsulin Regular, Human13suppressed
Oxycodone HclOxycodone Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa12suppressed
Ciprofloxacin HclCiprofloxacin Hcl1211
Dorzolamide HclDorzolamide Hcl12suppressed
Fosfomycin TromethamineFosfomycin Tromethamine12suppressed
GlycopyrrolateGlycopyrrolate12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
LubiprostoneLubiprostone12suppressed
MeropenemMeropenem12suppressed
Methenamine HippurateMethenamine Hippurate12suppressed
NaproxenNaproxen12suppressed
NystatinNystatin12suppressed
NystopNystatin12suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
AripiprazoleAripiprazole11suppressed
AtenololAtenolol11suppressed
BumetanideBumetanide11suppressed
DapagliflozinDapagliflozin Propanediol11suppressed
Doxycycline HyclateDoxycycline Hyclate11suppressed
KetoconazoleKetoconazole11suppressed
MovantikNaloxegol Oxalate11suppressed
PhenobarbitalPhenobarbital11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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