RxDoctor Payments Data

Ashwin Kashyap, MD

Hematology & Oncology · Thousand Oaks, CANPI 1861495475

Payments from drug & device makers

$3,085in general payments, 2019–2025

Across 140 payments — averaging $22.03 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Bristol Myers Squibb$604
  • Pfizer$435
  • E.r. Squibb & Sons, L.L.C.$432
  • Genentech USA, Inc.$301
  • Johnson & Johnson$220
  • Seagen Inc.$195
  • plus $897 from 17 others

What the payments were for

  • Food & beverage$2,32087%
  • Education$34913%

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

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.

How this compares

$3,085 in reported general payments places this provider in the 35th percentile of 1,363 hematology & oncology providers in California.

See all hematology & oncology providers in California

Medicare billing

Part B allowed, 2024
$4,011,348
Medicare patients
465
Services billed
187,345

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
RevlimidLenalidomide19$362,847
XtandiEnzalutamide20$270,689
TagrissoOsimertinib Mesylate11$176,179
Gefitinib12$50,521
EliquisApixaban40$29,837
Tamoxifen Citrate35$877
Anastrozole26$674
Dexamethasone19$349
Acyclovir15$235
Hydroxyurea24$197
Prochlorperazine Maleate14$165
Ondansetron Hcl32$110
Allopurinol19$41
Prednisone14$30

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
Bristol Myers SquibbRevlimid$604$362,84719 claims
Astellas Pharma US IncXtandi$25$270,68920 claims
AstraZenecaTagrisso$25$176,17911 claims
PfizerEliquis$435$29,83740 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 35th percentile of 1,363 hematology & oncology providers in California.

Other hematology & oncology in Thousand Oaks

See the full list for California

Where these figures come from

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