Healthcare provider profile · identity verified

Adan Abarca, MD

Family Practice · ANAHEIM, CA · NPI 1760553689

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 Calcium276121
Levothyroxine SodiumLevothyroxine Sodium25382
Losartan PotassiumLosartan Potassium16971
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16337
Amlodipine BesylateAmlodipine Besylate15060
Metoprolol SuccinateMetoprolol Succinate14354
LisinoprilLisinopril13454
Albuterol Sulfate HfaAlbuterol Sulfate12649
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11034
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9237
FurosemideFurosemide7834
GabapentinGabapentin7831
Tamsulosin HclTamsulosin Hcl7626
BaclofenBaclofen7541
Fluticasone PropionateFluticasone Propionate7521
HydrochlorothiazideHydrochlorothiazide7230
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7126
Metoprolol TartrateMetoprolol Tartrate6730
PrednisonePrednisone6646
SimvastatinSimvastatin6624
Rosuvastatin CalciumRosuvastatin Calcium6427
Trazodone HclTrazodone Hcl6427
BreynaBudesonide/Formoterol Fumarate6225
IbuprofenIbuprofen6231
Pantoprazole SodiumPantoprazole Sodium5922
Metformin HclMetformin Hcl5824
AtenololAtenolol5725
Fluoxetine HclFluoxetine Hcl5421
FamotidineFamotidine5026
Metformin Hcl ErMetformin Hcl5020
LorazepamLorazepam4921
MeloxicamMeloxicam4917
GlipizideGlipizide4822
OmeprazoleOmeprazole4719
JardianceEmpagliflozin4115
Potassium ChloridePotassium Chloride4118
NabumetoneNabumetone3924
CephalexinCephalexin3833
Buspirone HclBuspirone Hcl36suppressed
Duloxetine HclDuloxetine Hcl3614
Sertraline HclSertraline Hcl3612
TemazepamTemazepam3313
Montelukast SodiumMontelukast Sodium3211
Spiriva RespimatTiotropium Bromide32suppressed
Citalopram HbrCitalopram Hydrobromide29suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2917
AlvescoCiclesonide2814
EliquisApixaban27suppressed
MetronidazoleMetronidazole27suppressed
ChlorthalidoneChlorthalidone26suppressed
Ciprofloxacin HclCiprofloxacin Hcl2619
Hydroxyzine HclHydroxyzine Hcl2615
Sumatriptan SuccinateSumatriptan Succinate26suppressed
Alendronate SodiumAlendronate Sodium2512
MirtazapineMirtazapine2511
Doxycycline MonohydrateDoxycycline Monohydrate2417
Hydralazine HclHydralazine Hcl2411
AllopurinolAllopurinol23suppressed
Azelastine HclAzelastine Hcl23suppressed
Terazosin HclTerazosin Hcl23suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
PradaxaDabigatran Etexilate Mesylate2211
Pramipexole DihydrochloridePramipexole Di-Hcl22suppressed
ClopidogrelClopidogrel Bisulfate21suppressed
FinasterideFinasteride21suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml21suppressed
Donepezil HclDonepezil Hcl20suppressed
Nortriptyline HclNortriptyline Hcl20suppressed
Warfarin SodiumWarfarin Sodium18suppressed
Propranolol HclPropranolol Hcl17suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1715
Tramadol HclTramadol Hcl17suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1615
Pravastatin SodiumPravastatin Sodium16suppressed
Bupropion Hcl SrBupropion Hcl15suppressed
Bupropion XlBupropion Hcl15suppressed
LactuloseLactulose15suppressed
Oxybutynin Chloride ErOxybutynin Chloride15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Wixela InhubFluticasone Propion/Salmeterol15suppressed
CarvedilolCarvedilol14suppressed
Humulin NInsulin Nph Human Isophane14suppressed
Verapamil ErVerapamil Hcl14suppressed
AzithromycinAzithromycin1312
LovastatinLovastatin13suppressed
NaproxenNaproxen13suppressed
SpironolactoneSpironolactone13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Acetaminophen-CodeineAcetaminophen With Codeine12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
Ondansetron OdtOndansetron12suppressed
AlprazolamAlprazolam11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
EzetimibeEzetimibe11suppressed
HydrocortisoneHydrocortisone11suppressed
Morphine Sulfate ErMorphine Sulfate11suppressed
Paroxetine HclParoxetine Hcl11suppressed
PrimidonePrimidone11suppressed

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