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John Sarantopoulos, MD

Medical Oncology · San Antonio, TXNPI 1861495343

Payments from drug & device makers

$8,984,161in general payments, 2019–2025

Across 941 payments — averaging $9547.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Merck$7.1M
  • Novartis$659K
  • Exelixis Inc.$337K
  • Gilead$295K
  • Pfizer$190K
  • Regeneron Healthcare Solutions, Inc.$70K
  • plus $286K from 20 others
$6,746in research payments, 2019–2025

Across 4 payments — averaging $1686.58 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.

  • Pfizer$6K
  • Novartis$346

What the payments were for

  • Consulting fees$13,8242%
  • Speaking & faculty fees$468,79580%
  • Travel & lodging$94,67916%
  • Food & beverage$11,1592%
  • Education$150%

General payments by program year

19
20
21
22
23
24
25

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.

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

How this compares

$8,984,161 in reported general payments places this provider in the 90th percentile of 495 medical oncology providers in Texas.

See all medical oncology providers in Texas

Medicare billing

Part B allowed, 2024
$1,920,611
Medicare patients
314
Services billed
52,593

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

DrugClaimsCost to plans & patients
CabometyxCabozantinib S-Malate34$850,004
XtandiEnzalutamide29$417,401
Abiraterone Acetate88$186,858
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen102$3,649
Morphine Sulfate ErMorphine Sulfate30$1,125
Morphine Sulfate21$1,019
Prednisone95$452
Alprazolam22$253
Acetaminophen-CodeineAcetaminophen With Codeine14$225
Dexamethasone16$128
Potassium Chloride11$124
Levothyroxine Sodium14$101
Ondansetron Hcl20$75

Paid to pharmacies, not to this prescriber.

Companies that both paid and supply prescribed drugs

These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.

CompanyPaid to this providerPart D cost of their drugs
Exelixis Inc.Cabometyx$337,491$850,00434 claims
Astellas Pharma US IncXtandi$59,915$417,40129 claims

Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 495 medical oncology providers in Texas.

Other medical oncology in San Antonio

See the full list for Texas

Where these figures come from

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