Healthcare provider profile · identity verified

Raymond S. Chen, DO

Family Practice · BALDWIN PARK, CA · NPI 1841361805

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 Calcium715279
Amlodipine BesylateAmlodipine Besylate298119
Losartan PotassiumLosartan Potassium283109
LisinoprilLisinopril277113
Rosuvastatin CalciumRosuvastatin Calcium16459
Metformin HclMetformin Hcl16168
HydrochlorothiazideHydrochlorothiazide14056
GlipizideGlipizide13352
Metformin Hcl ErMetformin Hcl11651
OmeprazoleOmeprazole11655
SimvastatinSimvastatin11245
Metoprolol TartrateMetoprolol Tartrate11043
Tamsulosin HclTamsulosin Hcl11050
Levothyroxine SodiumLevothyroxine Sodium9435
Alendronate SodiumAlendronate Sodium9337
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8933
Albuterol Sulfate HfaAlbuterol Sulfate8756
Potassium ChloridePotassium Chloride7631
AtenololAtenolol7432
Terazosin HclTerazosin Hcl6130
ClopidogrelClopidogrel Bisulfate5424
FurosemideFurosemide5427
Trazodone HclTrazodone Hcl5122
Humulin NInsulin Nph Human Isophane5021
LactuloseLactulose50suppressed
GabapentinGabapentin4723
HydrocortisoneHydrocortisone4723
Triamcinolone AcetonideTriamcinolone Acetonide4732
AbrysvoRsv Vacc, Pref A And Pref B/Pf4242
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4113
Nano 2nd Gen Pen NeedlePen Needle, Diabetic4118
PradaxaDabigatran Etexilate Mesylate3916
Sertraline HclSertraline Hcl3915
JardianceEmpagliflozin3712
FinasterideFinasteride3617
Humulin N KwikpenInsulin Nph Human Isophane3617
Pantoprazole SodiumPantoprazole Sodium3619
Spiriva RespimatTiotropium Bromide3511
Donepezil HclDonepezil Hcl3412
CarvedilolCarvedilol3313
AllopurinolAllopurinol31suppressed
CephalexinCephalexin2727
Wixela InhubFluticasone Propion/Salmeterol2713
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf2625
Azelastine HclAzelastine Hcl26suppressed
AlvescoCiclesonide2515
Fluoxetine HclFluoxetine Hcl2312
Veo Insulin SyringeSyringe And Needle,insulin,1ml23suppressed
Doxycycline MonohydrateDoxycycline Monohydrate2220
Fluticasone PropionateFluticasone Propionate22suppressed
Nifedipine ErNifedipine22suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml22suppressed
FamotidineFamotidine21suppressed
Buspirone HclBuspirone Hcl2011
Diltiazem 24hr Er (Cd)Diltiazem Hcl20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
Humulin RInsulin Regular, Human18suppressed
PrednisonePrednisone1817
CiclopiroxCiclopirox17suppressed
FenofibrateFenofibrate17suppressed
Hydralazine HclHydralazine Hcl17suppressed
LovastatinLovastatin17suppressed
Montelukast SodiumMontelukast Sodium16suppressed
Bisoprolol FumarateBisoprolol Fumarate15suppressed
Risedronate SodiumRisedronate Sodium15suppressed
BreynaBudesonide/Formoterol Fumarate14suppressed
EzetimibeEzetimibe14suppressed
LatanoprostLatanoprost14suppressed
LidocaineLidocaine14suppressed
Methadone HclMethadone Hcl14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
Tramadol HclTramadol Hcl1412
IbuprofenIbuprofen1313
MeloxicamMeloxicam1311
Bupropion Hcl SrBupropion Hcl12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
EstradiolEstradiol12suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed

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