Healthcare provider profile · identity verified

Samuel Rivera Natal, MD

Allopathic & Osteopathic Physicians|Emergency Medicine · HATILLO, PR · NPI 1639119670

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 Samuel Rivera Natal, MD received $18.72 in general payments during 2025 across 1 reported records.

PFIZER INC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$18.72

1 reported records · 1 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
PFIZER INC. Unresolved — no canonical attribution shown $18.72100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$18.721

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
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $18.72 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
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
16 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
Atorvastatin CalciumAtorvastatin Calcium306150
GabapentinGabapentin25379
LisinoprilLisinopril223105
SimvastatinSimvastatin222106
OmeprazoleOmeprazole21463
Metformin HclMetformin Hcl210100
Pantoprazole SodiumPantoprazole Sodium19766
SynthroidLevothyroxine Sodium17461
FamotidineFamotidine17261
Losartan PotassiumLosartan Potassium15785
Albuterol Sulfate HfaAlbuterol Sulfate13670
Diclofenac PotassiumDiclofenac Potassium12488
GlipizideGlipizide12449
Levothyroxine SodiumLevothyroxine Sodium12340
Amlodipine BesylateAmlodipine Besylate10755
Montelukast SodiumMontelukast Sodium9640
Tamsulosin HclTamsulosin Hcl9338
Fluticasone PropionateFluticasone Propionate8538
Metoprolol SuccinateMetoprolol Succinate8336
PrednisonePrednisone8366
Alendronate SodiumAlendronate Sodium8224
ClonazepamClonazepam7916
Rosuvastatin CalciumRosuvastatin Calcium7737
ClopidogrelClopidogrel Bisulfate7028
Buspirone HclBuspirone Hcl6521
IrbesartanIrbesartan6533
Metoprolol TartrateMetoprolol Tartrate6433
BaclofenBaclofen6039
FinasterideFinasteride5819
FurosemideFurosemide5518
LantusInsulin Glargine,hum.Rec.Anlog5311
CarvedilolCarvedilol5119
CilostazolCilostazol5117
HydrochlorothiazideHydrochlorothiazide5124
PentoxifyllinePentoxifylline4916
Zolpidem TartrateZolpidem Tartrate4714
Betamethasone DipropionateBetamethasone Dipropionate4523
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip4526
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4420
Enalapril MaleateEnalapril Maleate4322
Diclofenac SodiumDiclofenac Sodium4226
Humulin NInsulin Nph Human Isophane42suppressed
AlprazolamAlprazolam4011
AtenololAtenolol3915
GlimepirideGlimepiride3923
AzithromycinAzithromycin3836
Sertraline HclSertraline Hcl3613
Meclizine HclMeclizine Hcl3524
FarxigaDapagliflozin Propanediol34suppressed
Ciprofloxacin HclCiprofloxacin Hcl3331
GemfibrozilGemfibrozil3314
TemazepamTemazepam33suppressed
NaproxenNaproxen3224
CefadroxilCefadroxil3130
LevofloxacinLevofloxacin3127
SymbicortBudesonide/Formoterol Fumarate3115
Humulin 70-30Insulin Nph Hum/Reg Insulin Hm30suppressed
Insulin SyringeSyringe And Needle,insulin,1ml3014
NabumetoneNabumetone3020
Donepezil HclDonepezil Hcl29suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
Tramadol HclTramadol Hcl2918
Triamcinolone AcetonideTriamcinolone Acetonide2723
SpironolactoneSpironolactone26suppressed
LansoprazoleLansoprazole25suppressed
LorazepamLorazepam24suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium23suppressed
Mometasone FuroateMometasone Furoate2314
NitroglycerinNitroglycerin23suppressed
DigoxinDigoxin20suppressed
KetoconazoleKetoconazole2013
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1919
Citalopram HbrCitalopram Hydrobromide19suppressed
MethylprednisoloneMethylprednisolone1916
AllopurinolAllopurinol18suppressed
FenofibrateFenofibrate Nanocrystallized18suppressed
Verapamil ErVerapamil Hcl18suppressed
Dicyclomine HclDicyclomine Hcl1711
Insulin SyringeSyringe-Needle,insulin,0.5 Ml17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
EliquisApixaban16suppressed
Nifedipine ErNifedipine16suppressed
Candesartan CilexetilCandesartan Cilexetil15suppressed
Hydralazine HclHydralazine Hcl15suppressed
LatanoprostLatanoprost15suppressed
Pravastatin SodiumPravastatin Sodium15suppressed
Sure ComfortSyringe And Needle,insulin,1ml15suppressed
Trueplus Insulin SyringeSyringe And Needle,insulin,1ml15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1411
Duloxetine HclDuloxetine Hcl14suppressed
Isosorbide DinitrateIsosorbide Dinitrate14suppressed
Ondansetron HclOndansetron Hcl14suppressed
TradjentaLinagliptin14suppressed
Acetaminophen-CodeineAcetaminophen With Codeine13suppressed
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid13suppressed
Clindamycin HclClindamycin Hcl1313
MethimazoleMethimazole13suppressed
SulindacSulindac13suppressed
XareltoRivaroxaban13suppressed
Breo ElliptaFluticasone/Vilanterol12suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine12suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide12suppressed
Tolterodine Tartrate ErTolterodine Tartrate12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed

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 $18.72 · 1 records PFIZER INC. PAXLOVID 1
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