Healthcare provider profile · identity verified

Guy Delorefice, M.D.

Internal Medicine · SONOMA, CA · NPI 1952426421

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 Calcium24362
Metoprolol SuccinateMetoprolol Succinate13134
HydrochlorothiazideHydrochlorothiazide10629
Rosuvastatin CalciumRosuvastatin Calcium9726
Losartan PotassiumLosartan Potassium9125
Zolpidem TartrateZolpidem Tartrate8620
Levothyroxine SodiumLevothyroxine Sodium7120
Pantoprazole SodiumPantoprazole Sodium7021
EliquisApixaban6811
LisinoprilLisinopril6820
EzetimibeEzetimibe6718
Amlodipine BesylateAmlodipine Besylate6216
GabapentinGabapentin5816
Tamsulosin HclTamsulosin Hcl5314
CelecoxibCelecoxib5216
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen52suppressed
SimvastatinSimvastatin4912
AzithromycinAzithromycin4731
Potassium ChloridePotassium Chloride4515
AlprazolamAlprazolam44suppressed
Metformin Hcl ErMetformin Hcl4411
AllopurinolAllopurinol4313
LorazepamLorazepam4311
Metformin HclMetformin Hcl4212
FurosemideFurosemide3413
Alendronate SodiumAlendronate Sodium33suppressed
FinasterideFinasteride32suppressed
PaxlovidNirmatrelvir/Ritonavir3129
Trazodone HclTrazodone Hcl30suppressed
OzempicSemaglutide29suppressed
JardianceEmpagliflozin27suppressed
DiazepamDiazepam26suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim26suppressed
Benazepril HclBenazepril Hcl24suppressed
PrednisonePrednisone2316
ValacyclovirValacyclovir Hcl2312
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
SynthroidLevothyroxine Sodium21suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
Repatha SureclickEvolocumab20suppressed
Clindamycin HclClindamycin Hcl18suppressed
EszopicloneEszopiclone18suppressed
OmeprazoleOmeprazole18suppressed
PregabalinPregabalin18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
ClonazepamClonazepam17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
Folic AcidFolic Acid17suppressed
IbuprofenIbuprofen17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide17suppressed
ColchicineColchicine16suppressed
SpironolactoneSpironolactone16suppressed
Tramadol HclTramadol Hcl16suppressed
CarvedilolCarvedilol15suppressed
CephalexinCephalexin1512
Dexlansoprazole DrDexlansoprazole15suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
Sertraline HclSertraline Hcl15suppressed
AcyclovirAcyclovir14suppressed
Albuterol Sulfate HfaAlbuterol Sulfate14suppressed
AmoxicillinAmoxicillin1411
Escitalopram OxalateEscitalopram Oxalate13suppressed
Labetalol HclLabetalol Hcl13suppressed
PremarinEstrogens, Conjugated13suppressed
Sumatriptan SuccinateSumatriptan Succinate13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1212
PrimidonePrimidone12suppressed
Sildenafil CitrateSildenafil Citrate12suppressed
Donepezil HclDonepezil Hcl11suppressed
DuleraMometasone/Formoterol11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
Ondansetron HclOndansetron 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