Healthcare provider profile · identity verified

Robert Castillo, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · CLOVIS, CA · NPI 1417938994

Profile state: payments and partd 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

CMS Open Payments records show Robert Castillo, M.D. received $75.44 in general payments during 2025 across 2 reported records.

Medline Industries LP accounted for 57.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$75.44

2 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Medline Industries LP Unresolved — no canonical attribution shown $43.3057.4%12025
SANOFI PASTEUR INC. Unresolved — no canonical attribution shown $32.1442.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$75.442

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE
Normalized: flublok quadrivalent northern hemisphere
Biological SANOFI PASTEUR INC. $32.14 1 2025
Source payment records
FLUZONE HIGH-DOSE
Normalized: fluzone high dose
Biological SANOFI PASTEUR INC. $32.14 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium33994
Levothyroxine SodiumLevothyroxine Sodium18744
Metoprolol SuccinateMetoprolol Succinate17248
Losartan PotassiumLosartan Potassium16547
Metformin HclMetformin Hcl13842
OmeprazoleOmeprazole11336
Tamsulosin HclTamsulosin Hcl9128
Amlodipine BesylateAmlodipine Besylate8725
Pantoprazole SodiumPantoprazole Sodium8121
Rosuvastatin CalciumRosuvastatin Calcium8127
HydrochlorothiazideHydrochlorothiazide7521
Escitalopram OxalateEscitalopram Oxalate6821
Albuterol Sulfate HfaAlbuterol Sulfate6436
EzetimibeEzetimibe5718
GabapentinGabapentin5521
SimvastatinSimvastatin5515
Olmesartan MedoxomilOlmesartan Medoxomil5315
FinasterideFinasteride4915
JanuviaSitagliptin Phosphate4914
Pioglitazone HclPioglitazone Hcl4716
AllopurinolAllopurinol4413
Sertraline HclSertraline Hcl4411
AzithromycinAzithromycin4236
LisinoprilLisinopril4212
Cyclobenzaprine HclCyclobenzaprine Hcl41suppressed
CephalexinCephalexin3935
SynthroidLevothyroxine Sodium37suppressed
Trazodone HclTrazodone Hcl3712
AlprazolamAlprazolam36suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide36suppressed
ValsartanValsartan34suppressed
FurosemideFurosemide33suppressed
Pravastatin SodiumPravastatin Sodium32suppressed
Buspirone HclBuspirone Hcl31suppressed
Ondansetron OdtOndansetron28suppressed
Potassium ChloridePotassium Chloride25suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid24suppressed
IbuprofenIbuprofen23suppressed
NystatinNystatin22suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl21suppressed
FamotidineFamotidine21suppressed
Fenofibric AcidFenofibric Acid (Choline)21suppressed
CarvedilolCarvedilol20suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
FenofibrateFenofibrate Nanocrystallized20suppressed
MeloxicamMeloxicam20suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1911
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide19suppressed
Lagevrio (Eua)Molnupiravir1818
OzempicSemaglutide18suppressed
PrednisonePrednisone1814
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1714
Ciprofloxacin HclCiprofloxacin Hcl1612
Duloxetine HclDuloxetine Hcl16suppressed
MupirocinMupirocin1615
Montelukast SodiumMontelukast Sodium15suppressed
AmoxicillinAmoxicillin1413
Doxycycline HyclateDoxycycline Hyclate1411
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1311
Bupropion Hcl SrBupropion Hcl13suppressed
Clonidine HclClonidine Hcl13suppressed
Zolpidem TartrateZolpidem Tartrate13suppressed
AcyclovirAcyclovir12suppressed
AtenololAtenolol12suppressed
Metoprolol TartrateMetoprolol Tartrate12suppressed
Sildenafil CitrateSildenafil Citrate12suppressed
ValacyclovirValacyclovir Hcl12suppressed
BystolicNebivolol Hcl11suppressed
Memantine HclMemantine Hcl11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed

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 $75.44 · 2 records Medline Industries LP FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE, FLUZONE HIGH-DOSE
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