Healthcare provider profile · identity verified

Bassel Hadaya, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · LANCASTER, CA · NPI 1174629950

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 Bassel Hadaya, M.D. received $514.34 in general payments during 2025 across 21 reported records.

AstraZeneca Pharmaceuticals LP accounted for 18.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

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

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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Farxiga by this doctor in 2024.

OPKO Pharmaceuticals, 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 RAYALDEE as an associated drug or biological on 5435 records involving 1739 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Rayaldee by this doctor in 2024.

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

Payment overview · 2025

General Payments

$514.34

21 reported records · 12 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $96.6318.8%42025
Amgen Inc. Unresolved — no canonical attribution shown $86.0216.7%32025
Aurinia Pharma U.S., Inc. Unresolved — no canonical attribution shown $67.5213.1%32025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $49.189.6%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $44.918.7%22025
CorMedix Inc. Unresolved — no canonical attribution shown $28.215.5%12025
AKEBIA THERAPEUTICS INC Unresolved — no canonical attribution shown $27.265.3%12025
OPKO Pharmaceuticals, LLC Unresolved — no canonical attribution shown $26.705.2%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $24.474.8%12025
Fresenius USA Marketing, Inc. Unresolved — no canonical attribution shown $22.784.4%12025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $21.694.2%12025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $18.973.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$514.3421

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
LOKELMA
Normalized: lokelma
Drug AstraZeneca Pharmaceuticals LP $96.63 4 2025
Source payment records
LUPKYNIS
Normalized: lupkynis
Drug Aurinia Pharma U.S., Inc. $67.52 3 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $56.86 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $49.18 2 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $44.91 2 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $29.16 1 2025
Source payment records
DEFENCATH
Normalized: defencath
Drug CorMedix Inc. $28.21 1 2025
Source payment records
Vafseo
Normalized: vafseo
Drug AKEBIA THERAPEUTICS INC $27.26 1 2025
Source payment records
RAYALDEE
Normalized: rayaldee
Drug OPKO Pharmaceuticals, LLC $26.70 1 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $24.47 1 2025
Source payment records
VELPHORO
Normalized: velphoro
Drug Fresenius USA Marketing, Inc. $22.78 1 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $21.69 1 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $18.97 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
RAYALDEE
rayaldee
2025 Rayaldee 2024 12
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
27 12
OPKO Pharmaceuticals, LLC
Exact reporting entity; no affiliate inference
2025 RAYALDEE
open payments reported associated product
CMS Open Payments — General Payments
5435 supporting records · 1739 recipient NPIs · example record 1222072234
Rayaldee · 2024
Exact normalized brand match · 1 Part D row
12 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 Besylate11445
FurosemideFurosemide10241
CalcitriolCalcitriol8029
Atorvastatin CalciumAtorvastatin Calcium7526
Calcium AcetateCalcium Acetate6529
FamotidineFamotidine6025
ValsartanValsartan5919
CarvedilolCarvedilol5517
Sevelamer CarbonateSevelamer Carbonate5425
PrednisonePrednisone5313
Levothyroxine SodiumLevothyroxine Sodium4517
ProsolParenteral Amino Acid 20% No.145suppressed
GabapentinGabapentin4315
Losartan PotassiumLosartan Potassium3914
Tamsulosin HclTamsulosin Hcl3913
Hydralazine HclHydralazine Hcl3514
Metoprolol SuccinateMetoprolol Succinate3415
CephalexinCephalexin3123
ClinolipidFat Emulsion/Olive/Soy/Phospho30suppressed
FarxigaDapagliflozin Propanediol2712
AllopurinolAllopurinol26suppressed
FluconazoleFluconazole24suppressed
Nifedipine ErNifedipine2411
Rosuvastatin CalciumRosuvastatin Calcium24suppressed
ChlorthalidoneChlorthalidone21suppressed
Clonidine HclClonidine Hcl17suppressed
Potassium ChloridePotassium Chloride17suppressed
EliquisApixaban16suppressed
Benazepril HclBenazepril Hcl14suppressed
Ondansetron HclOndansetron Hcl14suppressed
Methenamine HippurateMethenamine Hippurate13suppressed
MinoxidilMinoxidil13suppressed
Albuterol Sulfate HfaAlbuterol Sulfate12suppressed
BelsomraSuvorexant12suppressed
Cinacalcet HclCinacalcet Hcl12suppressed
LisinoprilLisinopril12suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
RayaldeeCalcifediol12suppressed
AzithromycinAzithromycin1111
Labetalol HclLabetalol Hcl11suppressed
Metformin HclMetformin Hcl11suppressed
Venlafaxine Hcl ErVenlafaxine 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 $514.34 · 21 records AstraZeneca Pharmaceuticals LP ACTHAR, BENLYSTA, DEFENCATH, Fabhalta, KRYSTEXXA, Kerendia, LOKELMA, LUPKYNIS, RAYALDEE, TARPEYO, TAVNEOS, 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