David Nava Jr., MD
NPI 1083234371ActiveIndividual· Internal Medicine· San Antonio, TX
Internal Medicine (MD) in San Antonio, Texas, trained at University of Texas Medical Branch at Galveston (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $823,142 for 7,259 claims, against $19,496 paid for services in 2024. Novo Nordisk Inc was the largest of 14 companies reporting payments in 2025, $1,184 in all, mostly food and beverage.
Overview
| NPI | 1083234371 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 16, 2020 |
| Last updated in NPPES | Aug 21, 2023 |
| Certified by provider | Aug 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | U5179 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 80 |
|---|---|
| Services billed | 389 across 51 procedure codes |
| Paid by Medicare | $19,496 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,259 · 18,782 30-day fills |
|---|---|
| Patients | 545 |
| Total drug cost | $823,142 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Internal Medicine |
Medical group
- Gmg Health Systems Associates PASan Antonio, TX · 117 clinicians
Industry payments (Open Payments)
- 2025$1,184 · 45 payments from 14 companies
- 2024$728.52 · 27 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $404.01 | 18 |
| Bayer Healthcare Pharmaceuticals Inc. | $193.99 | 8 |
| Dexcom, Inc. | $171.99 | 4 |
| Tg Therapeutics, Inc. | $124.99 | 1 |
| Sumitomo Pharma America, Inc. | $52.11 | 3 |
What the 2025 payments were for
- Food and Beverage$1,184 · 45 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 824 internal medicine physicians in San Antonio · All internal medicine physicians in Texas