Healthcare provider profile · identity verified

Richard Ryan Carreon, MD

Family Practice · SAN MARCOS, CA · NPI 1730440793

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 Calcium570195
LisinoprilLisinopril337114
Rosuvastatin CalciumRosuvastatin Calcium24993
Amlodipine BesylateAmlodipine Besylate22081
Losartan PotassiumLosartan Potassium20773
Levothyroxine SodiumLevothyroxine Sodium19465
HydrochlorothiazideHydrochlorothiazide16758
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13932
SimvastatinSimvastatin13944
Trazodone HclTrazodone Hcl11437
Terazosin HclTerazosin Hcl10530
Metformin HclMetformin Hcl10330
MeloxicamMeloxicam10033
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9834
Metoprolol TartrateMetoprolol Tartrate9842
Metformin Hcl ErMetformin Hcl9438
OmeprazoleOmeprazole8936
GlipizideGlipizide8726
Tamsulosin HclTamsulosin Hcl8530
GabapentinGabapentin8434
AtenololAtenolol8127
Alendronate SodiumAlendronate Sodium7023
Potassium ChloridePotassium Chloride6824
PradaxaDabigatran Etexilate Mesylate6519
Albuterol Sulfate HfaAlbuterol Sulfate6130
AllopurinolAllopurinol5821
Pantoprazole SodiumPantoprazole Sodium5423
Fluoxetine HclFluoxetine Hcl4918
Tramadol HclTramadol Hcl4911
EzetimibeEzetimibe4818
FinasterideFinasteride4613
Sertraline HclSertraline Hcl4416
ClopidogrelClopidogrel Bisulfate4316
Donepezil HclDonepezil Hcl43suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen41suppressed
AcyclovirAcyclovir3915
FurosemideFurosemide3716
Metoprolol SuccinateMetoprolol Succinate3715
Montelukast SodiumMontelukast Sodium3612
TopiramateTopiramate36suppressed
TestosteroneTestosterone33suppressed
Wixela InhubFluticasone Propion/Salmeterol3323
JardianceEmpagliflozin31suppressed
ArexvyRsvpref3 Antigen/As01e/Pf3030
CarvedilolCarvedilol30suppressed
Duloxetine HclDuloxetine Hcl30suppressed
IbuprofenIbuprofen3014
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf2525
ChlorthalidoneChlorthalidone2512
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2417
MirtazapineMirtazapine24suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2415
EliquisApixaban22suppressed
Humulin NInsulin Nph Human Isophane22suppressed
Midodrine HclMidodrine Hcl22suppressed
AlvescoCiclesonide21suppressed
Spiriva RespimatTiotropium Bromide21suppressed
Citalopram HbrCitalopram Hydrobromide19suppressed
Azelastine HclAzelastine Hcl18suppressed
OzempicSemaglutide18suppressed
Pioglitazone HclPioglitazone Hcl18suppressed
Glipizide-MetforminGlipizide/Metformin Hcl17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide1711
Benazepril HclBenazepril Hcl16suppressed
Bupropion XlBupropion Hcl16suppressed
EstradiolEstradiol1611
Hydralazine HclHydralazine Hcl15suppressed
Bupropion Hcl SrBupropion Hcl14suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic14suppressed
PregabalinPregabalin14suppressed
Morphine SulfateMorphine Sulfate13suppressed
Oxycodone HclOxycodone Hcl13suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
LovastatinLovastatin12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
NaproxenNaproxen12suppressed
XareltoRivaroxaban12suppressed
NystatinNystatin11suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid11suppressed
Veo Insulin SyringeSyrge-Ndl,ins 0.3 Ml Half Mark11suppressed

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