John Cantu, MD
Family Medicine · San Antonio, TXNPI 1013984350
Payments from drug & device makers
What this record shows
That places this record below the midpoint for family medicine clinicians in TX, where the typical reported total is $436.
No general payments reported
No drug or device maker reported general payments to this provider for 2019–2025. That is a common and unremarkable result.
Across 8 payments — averaging $18,058 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Novartis$88K
- AstraZeneca$47K
- Genentech, Inc.$10K
How this compares
$0 in reported general payments places this provider in the 0th percentile of 8,760 family 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 |
|---|---|---|
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 29 | $326 |
| Cefdinir | 20 | $297 |
| Doxycycline Monohydrate | 22 | $254 |
| Azithromycin | 13 | $35 |
| Prednisone | 18 | $27 |
| PaxlovidNirmatrelvir/Ritonavir | 18 | $0 |
Paid to pharmacies, not to this prescriber.
Other family medicine in San Antonio
- Aaron KingSan Antonio$1.1M
- Solomon PaleySan Antonio$136K
- Sarah SamreenSan Antonio$133K
- Melissa WalkerSan Antonio$53K
- Paul SaenzSan Antonio$50K
- Carlos CamposNew Braunfels$1.5M
- Bradley WassonArlington$734K
- Cynthia BrinsonAustin$402K
- Michael MendezLubbock$368K
- Sang Tae KimAmarillo$368K
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.