Ambir Mirza, MD
Internal Medicine · Fort Worth, TXNPI 1114008547
Payments from drug & device makers
Across 20 payments — averaging $26.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$186
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$99
- Pfizer$92
- Silk Road Medical, Inc.$78
- Johnson & Johnson$37
- Ferring Pharmaceuticals Inc.$20
- plus $16 from 1 others
What the payments were for
- Food & beverage$529100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AstraZeneca(2 entities) | 9 | $186 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $99 |
| Pfizer | 5 | $92 |
| Silk Road Medical, Inc. | 1 | $78 |
| Johnson & Johnson | 2 | $37 |
| Ferring Pharmaceuticals Inc. | 1 | $20 |
| Lilly USA, LLC | 1 | $16 |
How this compares
$529 in reported general payments places this provider in the 60th percentile of 7,675 internal medicine providers in Texas.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Penicillin G Potassium | 11 | $2,641 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 11 | $127 |
| Methylprednisolone | 14 | $124 |
| Metoprolol Succinate | 14 | $109 |
| Pantoprazole Sodium | 18 | $89 |
| Sodium Chloride0.9 % Sodium Chloride | 20 | $81 |
| Carvedilol | 12 | $63 |
| Atorvastatin Calcium | 17 | $41 |
| Amlodipine Besylate | 18 | $32 |
| Levofloxacin | 13 | $26 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Fort Worth
- Jan BurgerHouston$47.3M
- Nitin JainHouston$33.2M
- Muhammad IrfanTomball$30.6M
- Aung NaingHouston$30.6M
- Robert BassSan Antonio$25.6M
- Preetesh JainHouston$19.5M
- Paolo StratiHouston$19.2M
- Hernan SalazarSan Antonio$18.5M
- Nicholas ShortHouston$17.6M
- Salma SaigerMesquite$16.1M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.