Healthcare provider profile · identity verified

Douglas A Chiriboga, MD

Family Practice · POMONA, CA · NPI 1225038342

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
Metformin HclMetformin Hcl19763
Amlodipine BesylateAmlodipine Besylate16650
Atorvastatin CalciumAtorvastatin Calcium15949
GabapentinGabapentin15854
Rosuvastatin CalciumRosuvastatin Calcium14947
HydrochlorothiazideHydrochlorothiazide14039
LisinoprilLisinopril12436
Benazepril HclBenazepril Hcl11331
OmeprazoleOmeprazole11235
Levothyroxine SodiumLevothyroxine Sodium10829
Alendronate SodiumAlendronate Sodium8224
EzetimibeEzetimibe7724
Tamsulosin HclTamsulosin Hcl7625
Metoprolol TartrateMetoprolol Tartrate6517
EliquisApixaban6211
Pravastatin SodiumPravastatin Sodium6120
FurosemideFurosemide5619
GlipizideGlipizide56suppressed
Metoprolol SuccinateMetoprolol Succinate5418
Sertraline HclSertraline Hcl5315
Hydroxyzine HclHydroxyzine Hcl49suppressed
Losartan PotassiumLosartan Potassium4717
FamotidineFamotidine4013
JanuviaSitagliptin Phosphate34suppressed
ClopidogrelClopidogrel Bisulfate3212
JardianceEmpagliflozin3211
Potassium ChloridePotassium Chloride3213
Albuterol Sulfate HfaAlbuterol Sulfate3113
CarvedilolCarvedilol2811
FinasterideFinasteride28suppressed
Duloxetine HclDuloxetine Hcl26suppressed
Fluticasone PropionateFluticasone Propionate2617
Trazodone HclTrazodone Hcl2613
AllopurinolAllopurinol24suppressed
OzempicSemaglutide24suppressed
Pantoprazole SodiumPantoprazole Sodium22suppressed
Pioglitazone HclPioglitazone Hcl22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog20suppressed
SimvastatinSimvastatin20suppressed
Memantine HclMemantine Hcl19suppressed
AtenololAtenolol17suppressed
LevetiracetamLevetiracetam17suppressed
LantusInsulin Glargine,hum.Rec.Anlog16suppressed
LovastatinLovastatin16suppressed
MyrbetriqMirabegron16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Escitalopram OxalateEscitalopram Oxalate15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
Novolog FlexpenInsulin Aspart14suppressed
MirtazapineMirtazapine13suppressed
TrulicityDulaglutide13suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic13suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Verapamil ErVerapamil Hcl12suppressed
XareltoRivaroxaban12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
CarbamazepineCarbamazepine11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
PrednisonePrednisone11suppressed

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