Vincent M. Tjia, MD
NPI 1306803937ActiveIndividual· Internal Medicine, Nephrology· Austin, TX
Internal Medicine, Nephrology (MD) in Austin, Texas, trained at University of Texas Medical School at San Antonio (class of 1999). In 2024 Medicare paid $113,148 for 320 patients, and Part D covered 879 of their prescriptions, 83% of them generic. Bayer Healthcare Pharmaceuticals Inc. was the largest of 16 companies reporting payments in 2025, $1,627 in all, mostly food and beverage.
Overview
| NPI | 1306803937 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 27, 2006 |
| Last updated in NPPES | Oct 19, 2023 |
| Certified by provider | Oct 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | L5587 | 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 | 320 |
|---|---|
| Services billed | 879 across 18 procedure codes |
| Paid by Medicare | $113,148 |
Part D prescriptions in 2024
| Prescriptions (claims) | 879 · 1,944 30-day fills |
|---|---|
| Patients | 171 |
| Total drug cost | $112,060 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Austin Kidney Associates PARound Rock, TX · 33 clinicians
Hospital affiliations
- Ascension Seton HaysKyle, TX
- Ascension Seton Medical Center AustinAustin, TX
- Dell Seton Med Center at the University of TxAustin, TX
- St David's Medical CenterAustin, TX
- St David's South Austin Medical CenterAustin, TX
Other facilities
- Davita Brodie Lane DialysisDialysis facility · Austin, TX
- Davita Hill Country DialysisDialysis facility · Kyle, TX
- Davita Leander DialysisDialysis facility · Leander, TX
Industry payments (Open Payments)
- 2025$1,627 · 57 payments from 16 companies
- 2024$1,740 · 57 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $257.70 | 8 |
| Alexion Pharmaceuticals, Inc. | $173.49 | 3 |
| Novo Nordisk Inc | $173.42 | 5 |
| Otsuka America Pharmaceutical, Inc. | $148.55 | 5 |
| Amgen Inc. | $145.82 | 7 |
What the 2025 payments were for
- Food and Beverage$1,607 · 56 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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