Healthcare provider profile · identity verified

Nader Sawiris, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Pain Medicine · RANCHO CUCAMONGA, CA · NPI 1720304207

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 Nader Sawiris, M.D. received $711.45 in general payments during 2025 across 41 reported records.

Salix Pharmaceuticals, a division of Bausch Health US, LLC accounted for 37.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

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

Collegium 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 BELBUCA as an associated drug or biological on 17475 records involving 4385 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Belbuca by this doctor in 2024.

Salix Pharmaceuticals, a division of Bausch Health US, 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 RELISTOR as an associated drug or biological on 23206 records involving 6246 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Relistor by this doctor in 2024.

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

Payment overview · 2025

General Payments

$711.45

41 reported records · 9 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
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $267.3837.6%202025
PROTEGA PHARMACEUTIALS INC Unresolved — no canonical attribution shown $159.7222.4%92025
Electronic Waveform Lab, Inc. Unresolved — no canonical attribution shown $76.3210.7%42025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $68.049.6%32025
Saluda Medical Americas, Inc. Unresolved — no canonical attribution shown $49.507.0%12025
Tonix Medicines, Inc. Unresolved — no canonical attribution shown $28.784.0%12025
MML US, Inc. Unresolved — no canonical attribution shown $23.123.2%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $20.442.9%12025
ABBVIE INC. Unresolved — no canonical attribution shown $18.152.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$711.4541

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
RELISTOR
Normalized: relistor
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $267.38 20 2025
Source payment records
  • 2025-01-02 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $12.00 · Open Payments source
  • 2025-01-02 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $10.21 · Open Payments source
  • 2025-01-02 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $19.42 · Open Payments source
  • 2025-01-13 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $10.85 · Open Payments source
  • 2025-02-11 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $24.90 · Open Payments source
  • 2025-02-28 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $24.22 · Open Payments source
  • 2025-04-28 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $13.39 · Open Payments source
  • 2025-06-09 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $25.00 · Open Payments source
  • 2025-06-10 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $6.12 · Open Payments source
  • 2025-06-17 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $20.00 · Open Payments source
  • 2025-07-21 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $10.76 · Open Payments source
  • 2025-08-05 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $11.29 · Open Payments source
  • 2025-08-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $9.91 · Open Payments source
  • 2025-10-14 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $7.50 · Open Payments source
  • 2025-10-14 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $1.25 · Open Payments source
  • 2025-10-14 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $7.20 · Open Payments source
  • 2025-11-06 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $19.54 · Open Payments source
  • 2025-11-06 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $10.94 · Open Payments source
  • 2025-12-15 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $7.16 · Open Payments source
  • 2025-12-21 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.72 · Open Payments source
ROXYBOND
Normalized: roxybond
Drug PROTEGA PHARMACEUTIALS INC $159.72 9 2025
Source payment records
Evoke
Normalized: evoke
Device Saluda Medical Americas, Inc. $49.50 1 2025
Source payment records
Belbuca
Normalized: belbuca
Drug Collegium Pharmaceutical, Inc. $46.06 2 2025
Source payment records
TONMYA
Normalized: tonmya
Drug Tonix Medicines, Inc. $28.78 1 2025
Source payment records
ReActiv8
Normalized: reactiv8
Device MML US, Inc. $23.12 1 2025
Source payment records
XTAMPZA
Normalized: xtampza
Drug Collegium Pharmaceutical, Inc. $21.98 1 2025
Source payment records
Intracept
Normalized: intracept
Device Boston Scientific Corporation $20.44 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $18.15 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $18.15 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
Belbuca
belbuca
2025 Belbuca 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
RELISTOR
relistor
2025 Relistor 2024 17
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
Collegium Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 BELBUCA
open payments reported associated product
CMS Open Payments — General Payments
17475 supporting records · 4385 recipient NPIs · example record 1224105020
Belbuca · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Exact reporting entity; no affiliate inference
2025 RELISTOR
open payments reported associated product
CMS Open Payments — General Payments
23206 supporting records · 6246 recipient NPIs · example record 1231775437
Relistor · 2024
Exact normalized brand match · 1 Part D row
17 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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen2154415
GabapentinGabapentin1141289
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen705125
Tramadol HclTramadol Hcl676153
PregabalinPregabalin30064
Cyclobenzaprine HclCyclobenzaprine Hcl27767
BaclofenBaclofen22745
Tizanidine HclTizanidine Hcl21739
Acetaminophen-CodeineAcetaminophen With Codeine19348
Morphine Sulfate ErMorphine Sulfate17635
Oxycodone HclOxycodone Hcl17436
MeloxicamMeloxicam17165
Diclofenac SodiumDiclofenac Sodium14151
Duloxetine HclDuloxetine Hcl14127
LidocaineLidocaine13637
IbuprofenIbuprofen12327
MethocarbamolMethocarbamol8819
FentanylFentanyl63suppressed
TopiramateTopiramate43suppressed
Hydromorphone HclHydromorphone Hcl34suppressed
Morphine SulfateMorphine Sulfate33suppressed
MovantikNaloxegol Oxalate32suppressed
Amitriptyline HclAmitriptyline Hcl31suppressed
Naloxone HclNaloxone Hcl3027
BuprenorphineBuprenorphine20suppressed
CarisoprodolCarisoprodol18suppressed
RelistorMethylnaltrexone Bromide17suppressed
OxycontinOxycodone Hcl14suppressed
Methadone HclMethadone Hcl12suppressed
BelbucaBuprenorphine 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 $711.45 · 41 records Salix Pharmaceuticals, a division of Bausch Health US, LLC Belbuca, Evoke, Intracept, QULIPTA, RELISTOR, ROXYBOND, ReActiv8, TONMYA, UBRELVY, XTAMPZA 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