Healthcare provider profile · identity verified

Mallareddy Maddula, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · STOCKTON, CA · NPI 1487762647

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 Mallareddy Maddula, M.D. received $736.20 in general payments during 2025 across 29 reported records.

Fresenius USA Marketing, Inc. accounted for 33.4% 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: 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 33 claims for Velphoro 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 20 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$736.20

29 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
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $245.8733.4%102025
NxStage Medical, Inc. Unresolved — no canonical attribution shown $99.7313.6%12025
Ardelyx, Inc. Unresolved — no canonical attribution shown $92.1812.5%42025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $80.8211.0%32025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $58.057.9%32025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $44.716.1%22025
Amgen Inc. Unresolved — no canonical attribution shown $34.444.7%22025
OPKO Pharmaceuticals, LLC Unresolved — no canonical attribution shown $21.863.0%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $21.012.9%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $20.132.7%12025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $17.402.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$714.3428
Education$21.861

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. $245.87 10 2025
Source payment records
NXSTAGE SYSTEM ONE
Normalized: nxstage system one
Device NxStage Medical, Inc. $99.73 1 2025
Source payment records
IBSRELA
Normalized: ibsrela
Drug Ardelyx, Inc. $92.18 4 2025
Source payment records
JYNARQUE
Normalized: jynarque
Drug Otsuka America Pharmaceutical, Inc. $80.82 3 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $58.05 3 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $44.71 2 2025
Source payment records
RAYALDEE
Normalized: rayaldee
Drug OPKO Pharmaceuticals, LLC $21.86 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $21.01 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $20.13 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $20.13 1 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $17.42 1 2025
Source payment records
Repatha
Normalized: repatha
Biological Amgen Inc. $17.02 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
Ozempic
ozempic
2025 Ozempic 2024 20
Beneficiary count suppressed
exact normalized Medicare Part D
VELPHORO
velphoro
2025 Velphoro 2024 33
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
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
20 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
FurosemideFurosemide30787
Amlodipine BesylateAmlodipine Besylate27790
Losartan PotassiumLosartan Potassium26481
Hydralazine HclHydralazine Hcl23969
LisinoprilLisinopril18061
CalcitriolCalcitriol16349
Calcium AcetateCalcium Acetate16039
Potassium ChloridePotassium Chloride11224
Sevelamer CarbonateSevelamer Carbonate9937
Metoprolol TartrateMetoprolol Tartrate9236
Metoprolol SuccinateMetoprolol Succinate8122
CarvedilolCarvedilol7525
LokelmaSodium Zirconium Cyclosilicate7430
Tamsulosin HclTamsulosin Hcl7320
ProcritEpoetin Alfa7213
AllopurinolAllopurinol6721
Atorvastatin CalciumAtorvastatin Calcium6621
Midodrine HclMidodrine Hcl6116
Clonidine HclClonidine Hcl5914
FarxigaDapagliflozin Propanediol5312
XphozahTenapanor Hcl5316
AuryxiaFerric Citrate4711
Nifedipine ErNifedipine4714
ClinolipidFat Emulsion/Olive/Soy/Phospho46suppressed
GabapentinGabapentin4013
PrednisonePrednisone3814
JardianceEmpagliflozin36suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen34suppressed
Ondansetron HclOndansetron Hcl34suppressed
VelphoroSucroferric Oxyhydroxide33suppressed
Levothyroxine SodiumLevothyroxine Sodium31suppressed
VeltassaPatiromer Calcium Sorbitex3116
Cinacalcet HclCinacalcet Hcl30suppressed
OmeprazoleOmeprazole30suppressed
HydrochlorothiazideHydrochlorothiazide27suppressed
Vitamin D2Ergocalciferol (Vitamin D2)27suppressed
FebuxostatFebuxostat26suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
LactuloseLactulose2314
MinoxidilMinoxidil23suppressed
SpironolactoneSpironolactone22suppressed
Zolpidem TartrateZolpidem Tartrate22suppressed
JanuviaSitagliptin Phosphate21suppressed
Pantoprazole SodiumPantoprazole Sodium21suppressed
OzempicSemaglutide20suppressed
Benazepril HclBenazepril Hcl19suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
AlprazolamAlprazolam18suppressed
RetacritEpoetin Alfa-Epbx17suppressed
Ropinirole HclRopinirole Hcl17suppressed
Gentamicin SulfateGentamicin Sulfate15suppressed
Labetalol HclLabetalol Hcl15suppressed
MirtazapineMirtazapine15suppressed
AzithromycinAzithromycin1411
CephalexinCephalexin14suppressed
IrbesartanIrbesartan14suppressed
Albuterol Sulfate HfaAlbuterol Sulfate13suppressed
ClonidineClonidine12suppressed
DiazepamDiazepam12suppressed
KerendiaFinerenone12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
MetolazoneMetolazone12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Propranolol HclPropranolol Hcl12suppressed
FluconazoleFluconazole11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed

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 $736.20 · 29 records Fresenius USA Marketing, Inc. BENLYSTA, Fabhalta, IBSRELA, JYNARQUE, KRYSTEXXA, NXSTAGE SYSTEM ONE, Ozempic, RAYALDEE, Repatha, Rybelsus, TARPEYO, VELPHORO 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