Ghassan Salim Issa Bandak, MD
NPI 1023397114ActiveIndividual· Internal Medicine, Nephrology· San Antonio, TX
Internal Medicine, Nephrology (MD) with University of Texas Health Science Center at San Antonio, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $102,537 for 254 claims, against $52,531 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. reported $115.43 in payments in 2025, mostly food and beverage. Lists University Health System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1023397114 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 8, 2011 |
| Last updated in NPPES | Sep 6, 2022 |
| Certified by provider | Sep 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | T7490 | TX |
| Internal Medicine | 207R00000X | T7490 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (TX); Practitioner - Critical Care (Intensivists) (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 412 across 20 procedure codes |
| Paid by Medicare | $52,531 |
Part D prescriptions in 2024
| Prescriptions (claims) | 254 · 451 30-day fills |
|---|---|
| Patients | 55 |
| Total drug cost | $102,537 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- University of Texas Health Science Center at San AntonioSan Antonio, TX · 1,297 clinicians
Hospital affiliations
- University Health SystemSan Antonio, TX
- Ut Health San Antonio Multispecialty & Research HoSan Antonio, TX
Other facilities
- University Dialysis SouthDialysis facility · San Antonio, TX
- University Dialysis WestDialysis facility · San Antonio, TX
Industry payments (Open Payments)
- 2025$115.43 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $115.43 | 1 |
What the 2025 payments were for
- Food and Beverage$115.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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