Maryanne Sourial, DO
Nephrology · Lafayette, LANPI 1417346321
Payments from drug & device makers
Across 18 payments — averaging $127.71 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Fresenius USA Marketing, Inc.$2K
- Mallinckrodt Enterprises LLC$86
- AstraZeneca$59
- Travere Therapeutics, Inc.$36
- Mallinckrodt Hospital Products Inc.$32
- Novartis$26
- plus $88 from 4 others
What the payments were for
- Travel & lodging$1,53867%
- Food & beverage$76033%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Fresenius USA Marketing, Inc. | 4 | $1,972 |
| Mallinckrodt Enterprises LLC | 4 | $86 |
| AstraZeneca | 3 | $59 |
| Travere Therapeutics, Inc. | 1 | $36 |
| Mallinckrodt Hospital Products Inc. | 1 | $32 |
| Novartis | 1 | $26 |
| Amgen | 1 | $26 |
| Scpharmaceuticals Inc. | 1 | $22 |
| Merck | 1 | $20 |
| Vifor Pharma, Inc. | 1 | $20 |
How this compares
$2,299 in reported general payments places this provider in the 50th percentile of 206 nephrology providers in Louisiana.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| JardianceEmpagliflozin | 15 | $10,177 |
| FarxigaDapagliflozin Propanediol | 15 | $9,359 |
| Famotidine | 109 | $984 |
| Losartan Potassium | 57 | $310 |
| Potassium Citrate ErPotassium Citrate | 12 | $289 |
| Tamsulosin Hcl | 16 | $264 |
| Amlodipine Besylate | 55 | $211 |
| Allopurinol | 35 | $207 |
| Lisinopril | 46 | $185 |
| Furosemide | 40 | $167 |
| Prednisone | 11 | $86 |
| Metoprolol Succinate | 13 | $71 |
| Hydrochlorothiazide | 13 | $56 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AstraZenecaFarxiga | $59 | $9,35915 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 50th percentile of 206 nephrology providers in Louisiana.
Other nephrology in Lafayette
- Anthony BlalockLafayette$350K
- Roderick ClarkLafayette$33K
- Ziad AshkarLafayette$18K
- Akshey GuptaLafayette$6K
- Sreedhara AllaShreveport$1.2M
- Christopher LuscyBaton Rouge$1.1M
- Marwan KaskasShreveport$968K
- Juan Carlos VelezNew Orleans$801K
- Richard O'DonovanMonroe$566K
- Michael RoppoloBaton Rouge$447K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.