Healthcare provider profile · identity verified

David Castillo, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · TALLAHASSEE, FL · NPI 1114286267

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 David Castillo, M.D. received $246.73 in general payments during 2025 across 11 reported records.

E.R. Squibb & Sons, L.L.C. accounted for 18.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 213 claims for Eliquis by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 37 claims for Entresto by this doctor in 2024.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$246.73

11 reported records · 8 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
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $46.4418.8%12025
Stryker Corporation Unresolved — no canonical attribution shown $40.2416.3%22025
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Unresolved — no canonical attribution shown $38.0315.4%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $31.7712.9%12025
CVRx, Inc. Unresolved — no canonical attribution shown $31.7412.9%22025
Smith+Nephew, Inc. Unresolved — no canonical attribution shown $28.5411.6%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $15.026.1%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $14.956.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$246.7311

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
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $46.44 1 2025
Source payment records
FLOWTRIEVER
Normalized: flowtriever
Device Stryker Corporation $40.24 2 2025
Source payment records
LifeVest
Normalized: lifevest
Device ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $38.03 2 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $31.77 1 2025
Source payment records
Barostim Neo System
Normalized: barostim neo system
Device CVRx, Inc. $31.74 2 2025
Source payment records
COLLAGENASE SANTYL
Normalized: collagenase santyl
Drug Smith+Nephew, Inc. $28.54 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $15.02 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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
213 43
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
37 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS

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
FurosemideFurosemide39331
ValsartanValsartan34331
FamotidineFamotidine32517
Amlodipine BesylateAmlodipine Besylate30034
Levothyroxine SodiumLevothyroxine Sodium29319
Atorvastatin CalciumAtorvastatin Calcium28450
OmeprazoleOmeprazole26629
GabapentinGabapentin24131
Donepezil HclDonepezil Hcl23016
MirtazapineMirtazapine218suppressed
EliquisApixaban21343
Pravastatin SodiumPravastatin Sodium21224
Potassium ChloridePotassium Chloride20317
Metoprolol SuccinateMetoprolol Succinate17338
Metoprolol TartrateMetoprolol Tartrate14717
Escitalopram OxalateEscitalopram Oxalate130suppressed
AllopurinolAllopurinol129suppressed
Paroxetine HclParoxetine Hcl113suppressed
RisperidoneRisperidone104suppressed
CarvedilolCarvedilol9622
Metformin HclMetformin Hcl9311
Trazodone HclTrazodone Hcl93suppressed
Memantine HclMemantine Hcl92suppressed
Oxybutynin Chloride ErOxybutynin Chloride92suppressed
Duloxetine HclDuloxetine Hcl84suppressed
Sertraline HclSertraline Hcl78suppressed
Quetiapine FumarateQuetiapine Fumarate76suppressed
ClopidogrelClopidogrel Bisulfate7422
LevetiracetamLevetiracetam67suppressed
IbuprofenIbuprofen62suppressed
LisinoprilLisinopril6215
Alendronate SodiumAlendronate Sodium61suppressed
FarxigaDapagliflozin Propanediol59suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate58suppressed
Buspirone HclBuspirone Hcl55suppressed
Carbidopa-LevodopaCarbidopa/Levodopa55suppressed
Citalopram HbrCitalopram Hydrobromide55suppressed
Ropinirole HclRopinirole Hcl55suppressed
BumetanideBumetanide54suppressed
Venlafaxine Hcl ErVenlafaxine Hcl54suppressed
Dilt-XrDiltiazem Hcl53suppressed
Metformin Hcl ErMetformin Hcl53suppressed
Mycophenolate MofetilMycophenolate Mofetil52suppressed
NamzaricMemantine Hcl/Donepezil Hcl52suppressed
Tamsulosin HclTamsulosin Hcl5114
TorsemideTorsemide51suppressed
Solifenacin SuccinateSolifenacin Succinate50suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl48suppressed
ZenpepLipase/Protease/Amylase48suppressed
FenofibrateFenofibrate Nanocrystallized46suppressed
Hydralazine HclHydralazine Hcl4611
Nifedipine ErNifedipine38suppressed
EntrestoSacubitril/Valsartan37suppressed
OlanzapineOlanzapine37suppressed
Isosorbide DinitrateIsosorbide Dinitrate32suppressed
CelecoxibCelecoxib31suppressed
Fluticasone PropionateFluticasone Propionate3012
TradjentaLinagliptin29suppressed
Prazosin HclPrazosin Hcl28suppressed
Tramadol HclTramadol Hcl2512
CefdinirCefdinir2414
GlimepirideGlimepiride23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2020
SpironolactoneSpironolactone2013
Insulin Aspart FlexpenInsulin Aspart1912
PrednisonePrednisone1818
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate17suppressed
Ondansetron HclOndansetron Hcl1715
ClonazepamClonazepam16suppressed
Folic AcidFolic Acid16suppressed
LatanoprostLatanoprost16suppressed
Albuterol Sulfate HfaAlbuterol Sulfate1513
LactuloseLactulose14suppressed
GlyburideGlyburide12suppressed
LacosamideLacosamide12suppressed
LevofloxacinLevofloxacin1211
Montelukast SodiumMontelukast Sodium12suppressed
Oxycodone HclOxycodone Hcl1211
Pantoprazole SodiumPantoprazole Sodium12suppressed
Ranolazine ErRanolazine12suppressed
Dropsafe Pen NeedlePen Needle, Diabetic, Safety1111
FinasterideFinasteride11suppressed
Humulin N KwikpenInsulin Nph Human Isophane11suppressed
OzempicSemaglutide11suppressed

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 $246.73 · 11 records E.R. Squibb & Sons, L.L.C. Barostim Neo System, CAMZYOS, COLLAGENASE SANTYL, FLOWTRIEVER, LEQVIO, LifeVest, ULTOMIRIS 3
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