Marializa Bernardo
Nephrology · Houston, TXNPI 1477551968
Payments from drug & device makers
Across 1,571 payments — averaging $2650.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Vertex$1.1M
- GSK$770K
- Akebia Therapeutics Inc$507K
- AstraZeneca$416K
- Gilead$314K
- CSL Behring$314K
- plus $738K from 29 others
What the payments were for
- Food & beverage$6,81997%
- Education$2143%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Vertex | 11 | $1,103,704 |
| GSK | 101 | $769,750 |
| Akebia Therapeutics Inc | 585 | $507,359 |
| AstraZeneca(2 entities) | 49 | $416,306 |
| Gilead | 6 | $314,148 |
| CSL Behring | 40 | $313,953 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 3 | $228,622 |
| OPKO Pharmaceuticals, LLC | 45 | $159,922 |
| Bayer | 54 | $156,160 |
| Novo Nordisk AS | 415 | $142,416 |
| Ardelyx, Inc. | 58 | $39,477 |
| Biogen | 1 | $3,925 |
| Janssen Research & Development, LLC | 1 | $2,564 |
| Otsuka America Pharmaceutical, Inc. | 38 | $1,062 |
| Amgen(2 entities) | 37 | $829 |
| Vifor Pharma, Inc. | 24 | $416 |
| Mallinckrodt Hospital Products Inc. | 18 | $404 |
| Calliditas Therapeutics US Inc. | 8 | $356 |
| Travere Therapeutics, Inc. | 12 | $322 |
| Fresenius USA Marketing, Inc. | 16 | $320 |
| Mallinckrodt Enterprises LLC | 8 | $206 |
| ANI Pharmaceuticals, Inc. | 8 | $194 |
| Aurinia Pharma U.S., Inc. | 5 | $116 |
| Lilly USA, LLC | 5 | $101 |
| Novartis | 3 | $92 |
| Novo Nordisk | 4 | $80 |
| Sanofi | 3 | $72 |
| Apellis Pharmaceuticals, Inc. | 2 | $63 |
| Cormedix Inc. | 2 | $53 |
| Boehringer Ingelheim | 2 | $47 |
| Johnson & Johnson | 2 | $35 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $32 |
| Medtronic | 1 | $27 |
| Scpharmaceuticals Inc. | 1 | $23 |
| American Regent | 1 | $21 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$4,163,176 in reported general payments places this provider in the 95th percentile of 1,070 nephrology providers in Texas.
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 |
|---|---|---|
| FarxigaDapagliflozin Propanediol | 202 | $227,480 |
| VelphoroSucroferric Oxyhydroxide | 45 | $154,769 |
| JardianceEmpagliflozin | 88 | $109,913 |
| LokelmaSodium Zirconium Cyclosilicate | 44 | $64,279 |
| KerendiaFinerenone | 48 | $55,217 |
| ProcritEpoetin Alfa | 35 | $33,090 |
| Sevelamer Carbonate | 134 | $25,231 |
| Lanthanum Carbonate | 28 | $23,673 |
| RetacritEpoetin Alfa-Epbx | 46 | $22,915 |
| OzempicSemaglutide | 12 | $12,859 |
| AuryxiaFerric Citrate | 14 | $10,461 |
| Cinacalcet Hcl | 30 | $9,213 |
| Calcitriol | 98 | $2,915 |
| Losartan Potassium | 128 | $1,392 |
| Nifedipine ErNifedipine | 40 | $1,244 |
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, Lokelma | $416,306 | $291,759246 claims |
| Fresenius USA Marketing, Inc.Velphoro | $320 | $154,76945 claims |
| Boehringer IngelheimJardiance | $47 | $109,91388 claims |
| BayerKerendia | $156,160 | $55,21748 claims |
| Johnson & JohnsonProcrit | $35 | $33,09035 claims |
| Novo NordiskOzempic | $80 | $12,85912 claims |
| Akebia Therapeutics IncAuryxia | $507,359 | $10,46114 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 95th percentile of 1,070 nephrology providers in Texas.
Other nephrology in Houston
- Sreedhar MandayamHouston$7M
- Stephen FademHouston$2.4M
- Biruh WorkenehHouston$1.8M
- Rahul PandeyHouston$1.6M
- Christopher KwohHouston$928K
- George NassarHouston$772K
- June YaoHouston$651K
- Maher BisharaHouston$489K
- Wolfgang WinkelmayerHouston$462K
- Dana MitchellHouston$460K
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.