Maria G. Luna, M.D.
NPI 1053594994ActiveIndividual· Internal Medicine, Nephrology· San Antonio, TX
Internal Medicine, Nephrology (M.D.) in San Antonio, Texas, trained at University of Texas Medical School at San Antonio (class of 2004). In 2024 Medicare paid $202,379 for 508 patients, and Part D covered 1,121 of their prescriptions, 81% of them generic. Calliditas Therapeutics US Inc. was the largest of 18 companies reporting payments in 2025, $1,272 in all, mostly food and beverage.
Overview
| NPI | 1053594994 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 14, 2007 |
| Last updated in NPPES | Sep 18, 2026 |
| Certified by provider | Sep 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | M8144 | 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 | 508 |
|---|---|
| Services billed | 3,374 across 29 procedure codes |
| Paid by Medicare | $202,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,121 · 2,548 30-day fills |
|---|---|
| Patients | 200 |
| Total drug cost | $170,113 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- San Antonio Kidney Disease Center Physicians Group, P.L.L.C.San Antonio, TX · 33 clinicians
Hospital affiliations
- Baptist Medical CenterSan Antonio, TX
- Methodist HospitalSan Antonio, TX
- Methodist Hospital Stone OakSan Antonio, TX
- Peterson Regional Medical CenterKerrville, TX
Other facilities
- Davita Floyd Curl DialysisDialysis facility · San Antonio, TX
- Davita Las Palmas Dialysis CenterDialysis facility · San Antonio, TX
- Davita Northwest Medical Center DialysisDialysis facility · San Antonio, TX
Industry payments (Open Payments)
- 2025$1,272 · 54 payments from 18 companies
- 2024$1,552 · 71 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $225.48 | 8 |
| Travere Therapeutics, Inc. | $202.10 | 11 |
| Veloxis Pharmaceuticals, Inc. | $156.32 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $124.34 | 5 |
| Astrazeneca Pharmaceuticals LP | $100.10 | 5 |
What the 2025 payments were for
- Food and Beverage$1,272 · 54 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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