RxDoctor Payments Data

Priyamvadha Chakravarthi, MD

Medical Oncology · Stanford, CANPI 1437148061

Payments from drug & device makers

$144in general payments, 2019–2025

Across 6 payments — averaging $24.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Pfizer$69
  • Geron Corporation$33
  • Deciphera Pharmaceuticals Inc.$30
  • Seagen Inc.$12

What the payments were for

  • Food & beverage$6344%
  • Education$8156%

General payments by program year

19
22
23
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.

How this compares

$144 in reported general payments places this provider in the 10th percentile of 379 medical oncology providers in California.

See all medical oncology providers in California

Medicare billing

Part B allowed, 2024
$226,520
Medicare patients
216
Services billed
5,444

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
ImbruvicaIbrutinib26$443,508
AlecensaAlectinib Hcl15$256,383
Abiraterone Acetate13$34,941
EliquisApixaban22$22,752
Exemestane58$16,920
Hydroxyurea42$1,485
Anastrozole41$1,018
Acyclovir58$626

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
PfizerEliquis$69$22,75222 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 10th percentile of 379 medical oncology providers in California.

Other medical oncology in Stanford

See the full list for California

Where these figures come from

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