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Weijing Sun, MD

Medical Oncology · Westwood, KSNPI 1811925316

Payments from drug & device makers

$5,078,807in general payments, 2019–2025

Across 244 payments — averaging $20,815 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Merck$4.2M
  • AstraZeneca$345K
  • Beone Medicines AUS Pty Ltd$128K
  • Beone Medicines USA, Inc.$86K
  • Beigene AUS Pty Ltd$74K
  • Ipsen Biopharmaceuticals, Inc$50K
  • plus $203K from 15 others

What the payments were for

  • Consulting fees$23,20515%
  • Speaking & faculty fees$104,48570%
  • Travel & lodging$17,42212%
  • Food & beverage$5,1533%
  • Education$110%

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

$5,078,807 in reported general payments places this provider in the 95th percentile of 25 medical oncology providers in Kansas.

See all medical oncology providers in Kansas

Medicare billing

Part B allowed, 2024
$83,961
Medicare patients
205
Services billed
946

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
VitrakviLarotrectinib Sulfate14$556,702
TibsovoIvosidenib12$373,949
StivargaRegorafenib14$156,103
CreonLipase/Protease/Amylase29$111,677
EliquisApixaban20$12,833
Dexamethasone48$776
Oxycodone Hcl23$473
Olanzapine38$459
Ondansetron Hcl50$331
Gabapentin18$327
Prochlorperazine Maleate26$322
Levothyroxine Sodium15$81
Methylprednisolone17$69

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
BayerVitrakvi, Stivarga$33,112$712,80528 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 95th percentile of 25 medical oncology providers in Kansas.

Other medical oncology in Westwood

See the full list for Kansas

Where these figures come from

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