RxDoctor Payments Data

Kanishka Chakraborty, MD

Medical Oncology · Kingsport, TNNPI 1992993760

Payments from drug & device makers

$4,556in general payments, 2019–2025

Across 208 payments — averaging $21.90 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AstraZeneca$424
  • Johnson & Johnson$408
  • Novartis$332
  • Regeneron Healthcare Solutions, Inc.$258
  • Merck$240
  • Daiichi Sankyo Inc.$219
  • plus $3K from 38 others

What the payments were for

  • Food & beverage$4,32595%
  • Education$2315%

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
21
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

$4,556 in reported general payments places this provider in the 35th percentile of 101 medical oncology providers in Tennessee.

See all medical oncology providers in Tennessee

Medicare billing

Part B allowed, 2024
$506,466
Medicare patients
326
Services billed
22,890

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
AyvakitAvapritinib11$430,382
CalquenceAcalabrutinib Maleate30$369,199
Lenalidomide31$363,933
XalkoriCrizotinib15$301,420
IbrancePalbociclib17$269,881
ImbruvicaIbrutinib14$119,704
Imatinib Mesylate12$52,475
EliquisApixaban43$29,239
XareltoRivaroxaban22$14,077
ValacyclovirValacyclovir Hcl46$2,426
Prochlorperazine Maleate79$1,457
Dexamethasone80$1,205
Ondansetron Hcl74$867
Ondansetron OdtOndansetron25$766
Hydroxyurea25$747

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
PfizerXalkori, Ibrance, Eliquis$155$600,53975 claims
AstraZenecaCalquence$424$369,19930 claims
Johnson & JohnsonXarelto$408$14,07722 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 101 medical oncology providers in Tennessee.

Other medical oncology in Kingsport

See the full list for Tennessee

Where these figures come from

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