Healthcare provider profile · identity verified

Alfonso Brigham, M.D.

Internal Medicine · HAWTHORNE, CA · NPI 1902858343

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 Calcium499177
Amlodipine BesylateAmlodipine Besylate287103
Losartan PotassiumLosartan Potassium17362
Metformin HclMetformin Hcl15959
LisinoprilLisinopril13046
Tamsulosin HclTamsulosin Hcl11843
OmeprazoleOmeprazole11040
Albuterol Sulfate HfaAlbuterol Sulfate10033
Levothyroxine SodiumLevothyroxine Sodium9831
OzempicSemaglutide9826
AtenololAtenolol8728
FamotidineFamotidine8533
Metoprolol TartrateMetoprolol Tartrate8531
Pantoprazole SodiumPantoprazole Sodium8225
HydrochlorothiazideHydrochlorothiazide7828
IbuprofenIbuprofen7430
GabapentinGabapentin7130
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide6822
Metoprolol SuccinateMetoprolol Succinate6826
Triamcinolone AcetonideTriamcinolone Acetonide6633
Metformin Hcl ErMetformin Hcl6324
FurosemideFurosemide6023
CarvedilolCarvedilol5819
Clonidine HclClonidine Hcl5821
Diclofenac SodiumDiclofenac Sodium5729
EliquisApixaban5715
Memantine HclMemantine Hcl5719
ClopidogrelClopidogrel Bisulfate5417
Pioglitazone HclPioglitazone Hcl5421
RybelsusSemaglutide5414
Rosuvastatin CalciumRosuvastatin Calcium5220
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4619
Nifedipine ErNifedipine4315
JardianceEmpagliflozin3715
MeloxicamMeloxicam3713
Sildenafil CitrateSildenafil Citrate37suppressed
Benazepril HclBenazepril Hcl3513
GlipizideGlipizide3513
Hydralazine HclHydralazine Hcl35suppressed
KetoconazoleKetoconazole3313
ChlorthalidoneChlorthalidone3212
SimvastatinSimvastatin32suppressed
Buspirone HclBuspirone Hcl3014
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3011
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3025
Alendronate SodiumAlendronate Sodium2911
Felodipine ErFelodipine29suppressed
GlimepirideGlimepiride29suppressed
MyrbetriqMirabegron2915
AzithromycinAzithromycin2827
BaclofenBaclofen2813
Meclizine HclMeclizine Hcl2714
MirtazapineMirtazapine2616
Fluticasone PropionateFluticasone Propionate2514
NaproxenNaproxen2512
JanuviaSitagliptin Phosphate24suppressed
Montelukast SodiumMontelukast Sodium23suppressed
XareltoRivaroxaban23suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2216
FarxigaDapagliflozin Propanediol22suppressed
LatanoprostLatanoprost21suppressed
SpironolactoneSpironolactone2111
LovastatinLovastatin20suppressed
Trazodone HclTrazodone Hcl20suppressed
Sodium Chloride0.9 % Sodium Chloride19suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
AllopurinolAllopurinol18suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
Olmesartan-Amlodipine-HctzOlmesartan/Amlodipin/Hcthiazid18suppressed
Potassium ChloridePotassium Chloride18suppressed
TrulicityDulaglutide18suppressed
Hydroxyzine HclHydroxyzine Hcl17suppressed
Clobetasol PropionateClobetasol Propionate16suppressed
FinasterideFinasteride16suppressed
MounjaroTirzepatide15suppressed
Ondansetron HclOndansetron Hcl/Pf15suppressed
PrednisonePrednisone15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
EzetimibeEzetimibe14suppressed
HaloperidolHaloperidol14suppressed
LinzessLinaclotide14suppressed
NitroglycerinNitroglycerin14suppressed
MupirocinMupirocin13suppressed
Ciprofloxacin HclCiprofloxacin Hcl12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
JanumetSitagliptin Phos/Metformin Hcl11suppressed
MethimazoleMethimazole11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed
PaxlovidNirmatrelvir/Ritonavir11suppressed
Pravastatin SodiumPravastatin Sodium11suppressed

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