Healthcare provider profile · identity verified

Paul Riska, MD

Allopathic & Osteopathic Physicians|General Practice · BRONX, NY · NPI 1245274364

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 Paul Riska, MD received $288.75 in general payments during 2025 across 9 reported records.

Gilead Sciences, Inc. accounted for 89.4% of that reported general-payment amount.

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

A separate comparison found the same explicitly named product in public Medicare Part D data: Biktarvy.

Gilead Sciences, 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 Biktarvy as an associated drug or biological on 8065 records involving 2759 distinct recipient NPIs. Public Medicare Part D data also shows 335 claims for Biktarvy by this doctor in 2024.

Gilead Sciences, 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 Descovy as an associated drug or biological on 2032 records involving 589 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Descovy by this doctor in 2024.

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 24 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

$288.75

9 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
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $258.1089.4%82025
PFIZER INC. Unresolved — no canonical attribution shown $30.6510.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$258.108
Travel and Lodging$30.651

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
Biktarvy
Normalized: biktarvy
Drug Gilead Sciences, Inc. $16.23 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Biktarvy
biktarvy
2025 Biktarvy 2024 335 exact normalized Medicare Part D

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
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Biktarvy
open payments reported associated product
CMS Open Payments — General Payments
8065 supporting records · 2759 recipient NPIs · example record 1234350766
Biktarvy · 2024
Exact normalized brand match · 1 Part D row
335 36
Gilead Sciences, Inc.
Exact reporting entity; no affiliate inference
2025 Descovy
open payments reported associated product
CMS Open Payments — General Payments
2032 supporting records · 589 recipient NPIs · example record 1234351196
Descovy · 2024
Exact normalized brand match · 1 Part D row
61 suppressed by CMS
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
24 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
BiktarvyBictegrav/Emtricit/Tenofov Ala33536
Atorvastatin CalciumAtorvastatin Calcium20131
Albuterol Sulfate HfaAlbuterol Sulfate15323
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12417
Oxycodone HclOxycodone Hcl11911
GabapentinGabapentin11518
ValacyclovirValacyclovir Hcl10014
Tamsulosin HclTamsulosin Hcl8512
ClonazepamClonazepam7712
Amlodipine BesylateAmlodipine Besylate7612
Quetiapine FumarateQuetiapine Fumarate70suppressed
Diclofenac SodiumDiclofenac Sodium6818
PregabalinPregabalin68suppressed
OmeprazoleOmeprazole6411
Metformin HclMetformin Hcl63suppressed
DescovyEmtricitabine/Tenofov Alafenam61suppressed
PrezcobixDarunavir/Cobicistat61suppressed
FamotidineFamotidine5913
Metoprolol SuccinateMetoprolol Succinate5912
SymtuzaDarunavir/Cob/Emtri/Tenof Alaf59suppressed
DovatoDolutegravir Sodium/Lamivudine56suppressed
TivicayDolutegravir Sodium56suppressed
Vitamin D2Ergocalciferol (Vitamin D2)53suppressed
FinasterideFinasteride49suppressed
Zolpidem TartrateZolpidem Tartrate46suppressed
Ammonium LactateAmmonium Lactate44suppressed
FluconazoleFluconazole4313
IbuprofenIbuprofen40suppressed
GlipizideGlipizide38suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen37suppressed
Rosuvastatin CalciumRosuvastatin Calcium37suppressed
OzempicSemaglutide36suppressed
Nifedipine ErNifedipine35suppressed
OdefseyEmtricitab/Rilpiviri/Tenof Ala35suppressed
Pantoprazole SodiumPantoprazole Sodium35suppressed
LactuloseLactulose34suppressed
HydrochlorothiazideHydrochlorothiazide32suppressed
Doxazosin MesylateDoxazosin Mesylate31suppressed
Efavirenz-Emtric-Tenofov DisopEfavirenz/Emtricit/Tenofovr Df31suppressed
GenvoyaElviteg/Cob/Emtri/Tenof Alafen30suppressed
LisinoprilLisinopril30suppressed
Pravastatin SodiumPravastatin Sodium30suppressed
Triamcinolone AcetonideTriamcinolone Acetonide30suppressed
JardianceEmpagliflozin29suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide28suppressed
Janumet XrSitagliptin Phos/Metformin Hcl27suppressed
Incruse ElliptaUmeclidinium Bromide26suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate26suppressed
Novolog FlexpenInsulin Aspart26suppressed
Hydroxyzine HclHydroxyzine Hcl25suppressed
MirtazapineMirtazapine25suppressed
Montelukast SodiumMontelukast Sodium25suppressed
Propranolol HclPropranolol Hcl25suppressed
EliquisApixaban24suppressed
FurosemideFurosemide24suppressed
LoperamideLoperamide Hcl24suppressed
Methadone HclMethadone Hcl24suppressed
RybelsusSemaglutide24suppressed
Clonidine HclClonidine Hcl23suppressed
KetoconazoleKetoconazole23suppressed
LidocaineLidocaine23suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter23suppressed
AtenololAtenolol22suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog22suppressed
CelecoxibCelecoxib22suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
Losartan PotassiumLosartan Potassium22suppressed
NaproxenNaproxen22suppressed
SpironolactoneSpironolactone22suppressed
Fluticasone PropionateFluticasone Propionate21suppressed
JulucaDolutegravir/Rilpivirine21suppressed
Levothyroxine SodiumLevothyroxine Sodium21suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1911
Doxycycline HyclateDoxycycline Hyclate1913
DuleraMometasone/Formoterol19suppressed
IbuIbuprofen19suppressed
OlanzapineOlanzapine19suppressed
ClopidogrelClopidogrel Bisulfate18suppressed
Tizanidine HclTizanidine Hcl18suppressed
Trazodone HclTrazodone Hcl18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril17suppressed
CabenuvaCabotegravir/Rilpivirine17suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip17suppressed
LatanoprostLatanoprost17suppressed
Ventolin HfaAlbuterol Sulfate17suppressed
ClotrimazoleClotrimazole16suppressed
Betamethasone DipropionateBetamethasone Dipropionate15suppressed
CimetidineCimetidine15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium15suppressed
Nortriptyline HclNortriptyline Hcl15suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
LevetiracetamLevetiracetam14suppressed
Advair HfaFluticasone Propion/Salmeterol13suppressed
AllopurinolAllopurinol13suppressed
Donepezil HclDonepezil Hcl13suppressed
FlunisolideFlunisolide13suppressed
RamiprilRamipril13suppressed
AbacavirAbacavir Sulfate12suppressed
Azelastine HclAzelastine Hcl12suppressed
CarvedilolCarvedilol12suppressed
Isentress HdRaltegravir Potassium12suppressed
Lopinavir-RitonavirLopinavir/Ritonavir12suppressed
StribildElviteg/Cob/Emtri/Tenofo Disop12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
TriumeqAbacavir/Dolutegravir/Lamivudi12suppressed
BaclofenBaclofen11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate11suppressed
Emtricitabine-Tenofovir DisopEmtricitabine/Tenofovir (Tdf)11suppressed
LamivudineLamivudine11suppressed
Procto-Med HcHydrocortisone11suppressed
Repatha SyringeEvolocumab11suppressed
Terazosin HclTerazosin Hcl11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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 $288.75 · 9 records Gilead Sciences, Inc. Biktarvy 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