Healthcare provider profile · identity verified

Yasser William Barsoum, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · VISALIA, CA · NPI 1467618363

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 Yasser William Barsoum, MD received $1,517.73 in general payments during 2025 across 88 reported records.

Ardelyx, Inc. accounted for 17.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 22 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Mounjaro, Ozempic, Velphoro.

Fresenius USA Marketing, 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 VELPHORO as an associated drug or biological on 8763 records involving 2642 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Velphoro 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 13 claims for Jardiance 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Mounjaro 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 134 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,517.73

88 reported records · 18 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
Ardelyx, Inc. Unresolved — no canonical attribution shown $257.9217.0%182025
Amgen Inc. Unresolved — no canonical attribution shown $216.9614.3%202025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $165.8410.9%72025
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $151.6510.0%102025
Novo Nordisk Inc Unresolved — no canonical attribution shown $119.767.9%52025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $88.695.8%42025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $82.445.4%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $63.994.2%32025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $60.504.0%22025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $57.013.8%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $51.003.4%22025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $45.133.0%22025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $42.842.8%22025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $29.892.0%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $26.081.7%42025
Abbott Laboratories Unresolved — no canonical attribution shown $21.501.4%12025
Vifor Pharma, Inc. Unresolved — no canonical attribution shown $18.281.2%12025
CorMedix Inc. Unresolved — no canonical attribution shown $18.251.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,453.1986
Education$64.542

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
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $257.92 18 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $165.84 7 2025
Source payment records
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $151.65 10 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $140.35 15 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $118.62 12 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $88.69 4 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $82.44 3 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $76.61 5 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $64.54 2 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $60.50 2 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $57.01 2 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $45.13 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $38.04 2 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $38.04 2 2025
Source payment records
CRYSVITA
Normalized: crysvita
Drug KYOWA KIRIN, INC. $29.89 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $27.09 1 2025
Source payment records
Vanrafia
Normalized: vanrafia
Drug Novartis Pharmaceuticals Corporation $27.09 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $26.08 4 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $25.95 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $21.50 1 2025
Source payment records
Veltassa
Normalized: veltassa
Drug Vifor Pharma, Inc. $18.28 1 2025
Source payment records
DEFENCATH
Normalized: defencath
Drug CorMedix Inc. $18.25 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
JARDIANCE
jardiance
2025 Jardiance 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 33
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 134 exact normalized Medicare Part D
VELPHORO
velphoro
2025 Velphoro 2024 29 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
Fresenius USA Marketing, Inc.
Exact reporting entity; no affiliate inference
2025 VELPHORO
open payments reported associated product
CMS Open Payments — General Payments
8763 supporting records · 2642 recipient NPIs · example record 1244803773
Velphoro · 2024
Exact normalized brand match · 1 Part D row
29 14
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
13 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
33 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
134 28
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
21 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 Calcium417148
LisinoprilLisinopril25398
Levothyroxine SodiumLevothyroxine Sodium22471
AlprazolamAlprazolam22065
BumetanideBumetanide17771
ProsolParenteral Amino Acid 20% No.1172suppressed
Amlodipine BesylateAmlodipine Besylate16858
CalcitriolCalcitriol14066
Cinacalcet HclCinacalcet Hcl13746
OzempicSemaglutide13428
ClinolipidFat Emulsion/Olive/Soy/Phospho133suppressed
Hydralazine HclHydralazine Hcl13249
Losartan PotassiumLosartan Potassium12438
Sevelamer CarbonateSevelamer Carbonate12242
CarvedilolCarvedilol11940
Metoprolol TartrateMetoprolol Tartrate11943
Zolpidem TartrateZolpidem Tartrate11325
Pantoprazole SodiumPantoprazole Sodium10343
Tamsulosin HclTamsulosin Hcl10245
Ciprofloxacin HclCiprofloxacin Hcl10072
Albuterol Sulfate HfaAlbuterol Sulfate9940
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters9858
AllopurinolAllopurinol8228
MinoxidilMinoxidil7828
LokelmaSodium Zirconium Cyclosilicate7136
PrednisonePrednisone7045
Metoprolol SuccinateMetoprolol Succinate6829
RetacritEpoetin Alfa-Epbx6425
Fluticasone PropionateFluticasone Propionate6332
Midodrine HclMidodrine Hcl6324
Megestrol AcetateMegestrol Acetate5430
Repatha SureclickEvolocumab5411
Vitamin D2Ergocalciferol (Vitamin D2)5217
GemfibrozilGemfibrozil5019
Tramadol HclTramadol Hcl5021
Doxazosin MesylateDoxazosin Mesylate4916
AzithromycinAzithromycin4828
Clonidine HclClonidine Hcl4719
GabapentinGabapentin4621
Potassium ChloridePotassium Chloride4624
HydrochlorothiazideHydrochlorothiazide43suppressed
ValsartanValsartan4315
JanuviaSitagliptin Phosphate4112
LactuloseLactulose3924
Nifedipine ErNifedipine3914
EliquisApixaban3511
Calcium AcetateCalcium Acetate34suppressed
Sevelamer HclSevelamer Hcl3413
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3319
MounjaroTirzepatide33suppressed
OmeprazoleOmeprazole3315
ChlorthalidoneChlorthalidone3111
FurosemideFurosemide3114
MetolazoneMetolazone3112
Repatha SyringeEvolocumab30suppressed
VelphoroSucroferric Oxyhydroxide2914
Potassium Citrate ErPotassium Citrate28suppressed
Comfort Ez Pen NeedlePen Needle, Diabetic27suppressed
Ondansetron HclOndansetron Hcl2716
Sertraline HclSertraline Hcl2715
SpironolactoneSpironolactone2713
ClinisolParenteral Amino Acid 15% No.526suppressed
FenofibrateFenofibrate2613
ClopidogrelClopidogrel Bisulfate25suppressed
Olmesartan MedoxomilOlmesartan Medoxomil25suppressed
Ondansetron OdtOndansetron2518
HydrocortisoneHydrocortisone23suppressed
ProcritEpoetin Alfa23suppressed
GlyxambiEmpagliflozin/Linagliptin22suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog21suppressed
RybelsusSemaglutide21suppressed
Warfarin SodiumWarfarin Sodium20suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1915
CephalexinCephalexin1913
Lantus SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
LoperamideLoperamide Hcl19suppressed
TradjentaLinagliptin19suppressed
XphozahTenapanor Hcl19suppressed
Benazepril HclBenazepril Hcl18suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
CelecoxibCelecoxib17suppressed
Metformin HclMetformin Hcl17suppressed
MetronidazoleMetronidazole1713
FenofibrateFenofibrate Nanocrystallized16suppressed
FluconazoleFluconazole1616
Ropinirole HclRopinirole Hcl16suppressed
FebuxostatFebuxostat15suppressed
Meclizine HclMeclizine Hcl15suppressed
Ventolin HfaAlbuterol Sulfate15suppressed
Oxybutynin ChlorideOxybutynin Chloride14suppressed
EszopicloneEszopiclone13suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
JardianceEmpagliflozin13suppressed
IrbesartanIrbesartan12suppressed
SucralfateSucralfate12suppressed
EzetimibeEzetimibe11suppressed
Hydromorphone HclHydromorphone Hcl11suppressed
ParicalcitolParicalcitol11suppressed

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 $1,517.73 · 88 records Ardelyx, Inc. ACTHAR, CRYSVITA, DEFENCATH, FREESTYLE LIBRE 3, Fabhalta, IBSRELA, JARDIANCE, JYNARQUE, Kerendia, MOUNJARO, OTEZLA, Ozempic, PURIFIED CORTROPHIN GEL, REPATHA, TARPEYO, TAVNEOS, VELPHORO, VOQUEZNA, Vafseo, Vanrafia, Veltassa, 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