Marializa V. Bernardo, M.D., P.A.
NPI 1477551968ActiveIndividual· Internal Medicine, Nephrology· Houston, TX
Internal Medicine, Nephrology (M.D., P.A.) with Southwest Nephrology Associates, LLP, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $809,001 for 1,804 claims, against $116,229 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 18 companies reporting payments in 2025, $1,800 in all, mostly food and beverage. Lists Houston Methodist Sugarland Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1477551968 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., P.A. |
| Sole proprietor | Yes |
| NPI issued | Jul 8, 2005 |
| Last updated in NPPES | Mar 14, 2019 |
| Reactivated | Mar 29, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | J5698 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 213 |
|---|---|
| Services billed | 1,311 across 26 procedure codes |
| Paid by Medicare | $116,229 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,804 · 3,955 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $809,001 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Southwest Nephrology Associates, LLPKaty, TX · 7 clinicians
Hospital affiliations
- Houston Methodist Sugarland HospitalSugar Land, TX
- Memorial Hermann Hospital SystemHouston, TX
- Memorial Hermann Sugar Land HospitalSugar Land, TX
Other facilities
- Bma RosenbergDialysis facility · Rosenberg, TX
- Fort Bend Dialysis CenterDialysis facility · Missouri City, TX
- Fresenius Medical Care Mission BendDialysis facility · Houston, TX
- Fresenius Kidney Care Sugarland HomeDialysis facility · Sugar Land, TX
- Missouri City DialysisDialysis facility · Missouri City, TX
- Encompass Health Rehabilitation Hospital of SugarInpatient rehabilitation facility · Sugar Land, TX
Industry payments (Open Payments)
- 2025$1,800 · 60 payments from 18 companies
- 2024$1,208 · 54 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $295.84 | 5 |
| Otsuka America Pharmaceutical, Inc. | $217.07 | 4 |
| Travere Therapeutics, Inc. | $164.92 | 4 |
| Mallinckrodt Hospital Products Inc. | $162.97 | 6 |
| Amgen Inc. | $141.14 | 6 |
What the 2025 payments were for
- Food and Beverage$1,798 · 59 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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