Healthcare provider profile · identity verified

Arnold E Barz, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · SHREVEPORT, LA · NPI 1710972559

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 Arnold E Barz, MD received $1,303.94 in general payments during 2025 across 62 reported records.

Fresenius USA Marketing, Inc. accounted for 47.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

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

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported LOKELMA as an associated drug or biological on 6897 records involving 4326 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Lokelma by this doctor in 2024.

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 53 claims for Velphoro by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,303.94

62 reported records · 15 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
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $618.9347.5%272025
OPKO Pharmaceuticals, LLC Unresolved — no canonical attribution shown $151.4911.6%102025
Amgen Inc. Unresolved — no canonical attribution shown $107.108.2%52025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $93.537.2%42025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $73.595.6%42025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $61.434.7%22025
SCPHARMACEUTICALS INC. Unresolved — no canonical attribution shown $33.512.6%22025
Vifor Pharma, Inc. Unresolved — no canonical attribution shown $25.532.0%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $25.311.9%12025
Otsuka Pharmaceutical Development & Commercialization, Inc. Unresolved — no canonical attribution shown $24.851.9%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.991.5%12025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $19.181.5%12025
Recor Medical Inc Unresolved — no canonical attribution shown $18.551.4%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $16.831.3%12025
Aurinia Pharma U.S., Inc. Unresolved — no canonical attribution shown $14.121.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,152.4552
Education$151.4910

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
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $618.93 27 2025
Source payment records
RAYALDEE
Normalized: rayaldee
Drug OPKO Pharmaceuticals, LLC $151.49 10 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $88.10 4 2025
Source payment records
LOKELMA
Normalized: lokelma
Drug AstraZeneca Pharmaceuticals LP $73.59 4 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $62.96 3 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $61.43 2 2025
Source payment records
FUROSCIX
Normalized: furoscix
Drug SCPHARMACEUTICALS INC. $33.51 2 2025
Source payment records
Vanrafia
Normalized: vanrafia
Drug Novartis Pharmaceuticals Corporation $30.57 1 2025
Source payment records
Veltassa
Normalized: veltassa
Drug Vifor Pharma, Inc. $25.53 1 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $25.31 1 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $19.99 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $19.00 1 2025
Source payment records
Paradise Ultrasound Renal Denervation System
Normalized: paradise ultrasound renal denervation system
Device Recor Medical Inc $18.55 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $16.83 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $16.83 1 2025
Source payment records
LUPKYNIS
Normalized: lupkynis
Drug Aurinia Pharma U.S., Inc. $14.12 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
LOKELMA
lokelma
2025 Lokelma 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
VELPHORO
velphoro
2025 Velphoro 2024 53 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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 LOKELMA
open payments reported associated product
CMS Open Payments — General Payments
6897 supporting records · 4326 recipient NPIs · example record 1206131624
Lokelma · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
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
53 15

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
Hydralazine HclHydralazine Hcl12233
Sevelamer CarbonateSevelamer Carbonate8634
Nifedipine ErNifedipine6417
VelphoroSucroferric Oxyhydroxide5315
Amlodipine BesylateAmlodipine Besylate5117
CalcitriolCalcitriol4412
BumetanideBumetanide4217
CarvedilolCarvedilol3811
Pantoprazole SodiumPantoprazole Sodium3611
Losartan PotassiumLosartan Potassium25suppressed
Metoprolol SuccinateMetoprolol Succinate25suppressed
Potassium ChloridePotassium Chloride25suppressed
Midodrine HclMidodrine Hcl22suppressed
Atorvastatin CalciumAtorvastatin Calcium21suppressed
LokelmaSodium Zirconium Cyclosilicate21suppressed
SpironolactoneSpironolactone19suppressed
FurosemideFurosemide1611
Cinacalcet HclCinacalcet Hcl15suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
AuryxiaFerric Citrate12suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed

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 $1,303.94 · 62 records Fresenius USA Marketing, Inc. ACTHAR, FUROSCIX, Fabhalta, JYNARQUE, KRYSTEXXA, LOKELMA, LUPKYNIS, Ozempic, Paradise Ultrasound Renal Denervation System, RAYALDEE, Rybelsus, TAVNEOS, ULTOMIRIS, VELPHORO, Vanrafia, Veltassa 2
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