Healthcare provider profile · identity verified

Michael D Schonefeld, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · EL DORADO, AR · NPI 1245210590

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 Michael D Schonefeld, M.D. received $859.84 in general payments during 2025 across 41 reported records.

Calliditas Therapeutics US Inc. accounted for 38.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jynarque, 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 24 claims for Velphoro by this doctor in 2024.

Otsuka America Pharmaceutical, 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 JYNARQUE as an associated drug or biological on 11133 records involving 4164 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Jynarque by this doctor in 2024.

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

Payment overview · 2025

General Payments

$859.84

41 reported records · 11 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
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $326.3438.0%162025
Ardelyx, Inc. Unresolved — no canonical attribution shown $142.5716.6%62025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $78.269.1%32025
Aurinia Pharma U.S., Inc. Unresolved — no canonical attribution shown $76.698.9%32025
OPKO Pharmaceuticals, LLC Unresolved — no canonical attribution shown $67.327.8%42025
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $60.347.0%32025
SCPHARMACEUTICALS INC. Unresolved — no canonical attribution shown $29.153.4%22025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $28.863.4%12025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $17.712.1%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.602.0%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $15.001.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$792.5237
Education$67.324

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
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $326.34 16 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $142.57 6 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $78.26 3 2025
Source payment records
LUPKYNIS
Normalized: lupkynis
Drug Aurinia Pharma U.S., Inc. $76.69 3 2025
Source payment records
RAYALDEE
Normalized: rayaldee
Drug OPKO Pharmaceuticals, LLC $67.32 4 2025
Source payment records
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $60.34 3 2025
Source payment records
FUROSCIX
Normalized: furoscix
Drug SCPHARMACEUTICALS INC. $29.15 2 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $28.86 1 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $17.71 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $17.60 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $15.00 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $15.00 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
JYNARQUE
jynarque
2025 Jynarque 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
VELPHORO
velphoro
2025 Velphoro 2024 24
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
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
24 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 JYNARQUE
open payments reported associated product
CMS Open Payments — General Payments
11133 supporting records · 4164 recipient NPIs · example record 1227267725
Jynarque · 2024
Exact normalized brand match · 1 Part D row
13 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
FurosemideFurosemide28881
CarvedilolCarvedilol18146
Amlodipine BesylateAmlodipine Besylate16442
Calcium AcetateCalcium Acetate15850
Losartan PotassiumLosartan Potassium13843
Hydralazine HclHydralazine Hcl12941
AllopurinolAllopurinol11823
Sevelamer CarbonateSevelamer Carbonate10539
LisinoprilLisinopril10428
Atorvastatin CalciumAtorvastatin Calcium8726
Pantoprazole SodiumPantoprazole Sodium8124
Levothyroxine SodiumLevothyroxine Sodium7715
Metoprolol TartrateMetoprolol Tartrate7518
FarxigaDapagliflozin Propanediol50suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate4812
Tamsulosin HclTamsulosin Hcl47suppressed
Potassium ChloridePotassium Chloride4617
MinoxidilMinoxidil45suppressed
OmeprazoleOmeprazole43suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine40suppressed
EliquisApixaban33suppressed
MetolazoneMetolazone30suppressed
Nifedipine ErNifedipine30suppressed
ClopidogrelClopidogrel Bisulfate29suppressed
Metoprolol SuccinateMetoprolol Succinate24suppressed
VelphoroSucroferric Oxyhydroxide24suppressed
FamotidineFamotidine21suppressed
CalcitriolCalcitriol20suppressed
Clonidine HclClonidine Hcl20suppressed
PrednisonePrednisone19suppressed
GabapentinGabapentin18suppressed
Ondansetron HclOndansetron Hcl18suppressed
Pioglitazone HclPioglitazone Hcl18suppressed
GlimepirideGlimepiride17suppressed
Hydroxyzine HclHydroxyzine Hcl17suppressed
Metformin HclMetformin Hcl17suppressed
Pravastatin SodiumPravastatin Sodium17suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim15suppressed
Amiodarone HclAmiodarone Hcl13suppressed
JynarqueTolvaptan13suppressed
Terazosin HclTerazosin Hcl13suppressed
Dilt-XrDiltiazem Hcl12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Venlafaxine HclVenlafaxine Hcl11suppressed

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 $859.84 · 41 records Calliditas Therapeutics US Inc. ACTHAR, FUROSCIX, IBSRELA, JARDIANCE, JYNARQUE, LUPKYNIS, Ozempic, RAYALDEE, Rybelsus, TARPEYO, VELPHORO, Vafseo 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