Healthcare provider profile · identity verified

David Michael Ourso, FNP-C

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner · BATON ROUGE, LA · NPI 1245771385

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 Michael Ourso, FNP-C received $1,928.93 in general payments during 2025 across 79 reported records.

ViiV Healthcare Company accounted for 43.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

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 248 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 112 claims for Descovy by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Jardiance by this doctor in 2024.

ViiV Healthcare Company reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CABENUVA as an associated drug or biological on 13941 records involving 3305 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Cabenuva by this doctor in 2024.

ViiV Healthcare Company reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported DOVATO as an associated drug or biological on 18732 records involving 3540 distinct recipient NPIs. Public Medicare Part D data also shows 46 claims for Dovato by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,928.93

79 reported records · 7 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
ViiV Healthcare Company Unresolved — no canonical attribution shown $839.3043.5%312025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $706.1536.6%372025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $165.428.6%62025
EMD Serono, Inc. Unresolved — no canonical attribution shown $119.026.2%12025
Abbott Laboratories Unresolved — no canonical attribution shown $41.062.1%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $39.752.1%22025
Theratechnologies Inc. Unresolved — no canonical attribution shown $18.230.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,928.9379

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
CABENUVA
Normalized: cabenuva
Drug ViiV Healthcare Company $464.17 16 2025
Source payment records
DOVATO
Normalized: dovato
Drug ViiV Healthcare Company $342.67 13 2025
Source payment records
Biktarvy
Normalized: biktarvy
Drug Gilead Sciences, Inc. $243.55 2 2025
Source payment records
PIFELTRO
Normalized: pifeltro
Drug Merck Sharp & Dohme LLC $165.42 6 2025
Source payment records
Serostim
Normalized: serostim
Drug EMD Serono, Inc. $119.02 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $41.06 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $39.75 2 2025
Source payment records
APRETUDE
Normalized: apretude
Drug ViiV Healthcare Company $22.04 1 2025
Source payment records
EGRIFTA
Normalized: egrifta
Drug Theratechnologies Inc. $18.23 1 2025
Source payment records
TROGARZO
Normalized: trogarzo
Drug Theratechnologies Inc. $18.23 1 2025
Source payment records
RUKOBIA
Normalized: rukobia
Drug ViiV Healthcare Company $10.42 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 248 exact normalized Medicare Part D
CABENUVA
cabenuva
2025 Cabenuva 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
DOVATO
dovato
2025 Dovato 2024 46
Beneficiary count suppressed
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
248 29
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
112 12
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
27 suppressed by CMS
ViiV Healthcare Company
Exact reporting entity; no affiliate inference
2025 CABENUVA
open payments reported associated product
CMS Open Payments — General Payments
13941 supporting records · 3305 recipient NPIs · example record 1189508908
Cabenuva · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
ViiV Healthcare Company
Exact reporting entity; no affiliate inference
2025 DOVATO
open payments reported associated product
CMS Open Payments — General Payments
18732 supporting records · 3540 recipient NPIs · example record 1189508902
Dovato · 2024
Exact normalized brand match · 1 Part D row
46 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
Amlodipine BesylateAmlodipine Besylate25644
BiktarvyBictegrav/Emtricit/Tenofov Ala24829
Albuterol Sulfate HfaAlbuterol Sulfate20442
Atorvastatin CalciumAtorvastatin Calcium19835
GabapentinGabapentin15826
JulucaDolutegravir/Rilpivirine15514
Losartan PotassiumLosartan Potassium13820
Rosuvastatin CalciumRosuvastatin Calcium12417
TivicayDolutegravir Sodium12316
DescovyEmtricitabine/Tenofov Alafenam11212
TriumeqAbacavir/Dolutegravir/Lamivudi10114
CarvedilolCarvedilol9614
Metoprolol SuccinateMetoprolol Succinate9211
Montelukast SodiumMontelukast Sodium8614
Metformin HclMetformin Hcl8314
Pantoprazole SodiumPantoprazole Sodium7814
Trazodone HclTrazodone Hcl7112
ValacyclovirValacyclovir Hcl67suppressed
Alendronate SodiumAlendronate Sodium66suppressed
SymtuzaDarunavir/Cob/Emtri/Tenof Alaf65suppressed
EliquisApixaban63suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim62suppressed
AzithromycinAzithromycin5724
LisinoprilLisinopril5212
FurosemideFurosemide51suppressed
FamotidineFamotidine4914
DovatoDolutegravir Sodium/Lamivudine46suppressed
Hydralazine HclHydralazine Hcl46suppressed
Oxybutynin Chloride ErOxybutynin Chloride42suppressed
PrezcobixDarunavir/Cobicistat40suppressed
HydrochlorothiazideHydrochlorothiazide38suppressed
DapsoneDapsone37suppressed
FluconazoleFluconazole36suppressed
GlimepirideGlimepiride36suppressed
Potassium ChloridePotassium Chloride35suppressed
Buspirone HclBuspirone Hcl34suppressed
Tamsulosin HclTamsulosin Hcl33suppressed
ClopidogrelClopidogrel Bisulfate32suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide32suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide31suppressed
Duloxetine HclDuloxetine Hcl30suppressed
Fluoxetine HclFluoxetine Hcl30suppressed
GenvoyaElviteg/Cob/Emtri/Tenof Alafen30suppressed
OdefseyEmtricitab/Rilpiviri/Tenof Ala30suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter30suppressed
Bupropion Hcl SrBupropion Hcl27suppressed
JardianceEmpagliflozin27suppressed
Megestrol AcetateMegestrol Acetate27suppressed
Tizanidine HclTizanidine Hcl27suppressed
Chlorhexidine GluconateChlorhexidine Gluconate26suppressed
Levothyroxine SodiumLevothyroxine Sodium26suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide26suppressed
OmeprazoleOmeprazole26suppressed
Cyproheptadine HclCyproheptadine Hcl25suppressed
Amitriptyline HclAmitriptyline Hcl24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Pravastatin SodiumPravastatin Sodium23suppressed
Tenofovir Disoproxil FumarateTenofovir Disoproxil Fumarate23suppressed
AripiprazoleAripiprazole22suppressed
Sertraline HclSertraline Hcl22suppressed
Clonidine HclClonidine Hcl21suppressed
EdurantRilpivirine Hcl21suppressed
Zolpidem TartrateZolpidem Tartrate21suppressed
Bupropion XlBupropion Hcl20suppressed
LinzessLinaclotide20suppressed
Escitalopram OxalateEscitalopram Oxalate18suppressed
SpironolactoneSpironolactone18suppressed
DiazepamDiazepam17suppressed
MethocarbamolMethocarbamol17suppressed
AbacavirAbacavir Sulfate16suppressed
AllopurinolAllopurinol16suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
AtovaquoneAtovaquone16suppressed
Metoprolol TartrateMetoprolol Tartrate16suppressed
Azelastine HclAzelastine Hcl15suppressed
ClonazepamClonazepam15suppressed
Hydroxyzine HclHydroxyzine Hcl15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
JanuviaSitagliptin Phosphate15suppressed
Ondansetron OdtOndansetron15suppressed
Spiriva HandihalerTiotropium Bromide15suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol14suppressed
Doxycycline HyclateDoxycycline Hyclate14suppressed
MeloxicamMeloxicam14suppressed
TestosteroneTestosterone14suppressed
Doxepin HclDoxepin Hcl13suppressed
EntrestoSacubitril/Valsartan13suppressed
FenofibrateFenofibrate13suppressed
MytesiCrofelemer13suppressed
Promethazine HclPromethazine Hcl13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
AcyclovirAcyclovir12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
Bevespi AerosphereGlycopyrrolate/Formoterol Fum12suppressed
CabenuvaCabotegravir/Rilpivirine12suppressed
Nebivolol HclNebivolol Hcl12suppressed
Spiriva RespimatTiotropium Bromide12suppressed
TemazepamTemazepam12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
Hydroxyzine PamoateHydroxyzine Pamoate11suppressed
OlanzapineOlanzapine11suppressed
RitonavirRitonavir11suppressed

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 $1,928.93 · 79 records ViiV Healthcare Company APRETUDE, Biktarvy, CABENUVA, DOVATO, EGRIFTA, FREESTYLE LIBRE 3, PIFELTRO, RUKOBIA, Serostim, TROGARZO, ZEPBOUND 5
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