RxDoctor Payments Data

Thanhnga Doan, MD

Medical Oncology · Duarte, CANPI 1598297459

Payments from drug & device makers

$22,125in general payments, 2019–2025

Across 54 payments — averaging $409.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Pfizer$20K
  • Seagen Inc.$367
  • AstraZeneca$353
  • Novartis$282
  • Gilead$217
  • Daiichi Sankyo Inc.$186
  • plus $720 from 10 others

What the payments were for

  • Food & beverage$1,72588%
  • Education$22512%

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

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

$22,125 in reported general payments places this provider in the 40th percentile of 379 medical oncology providers in California.

See all medical oncology providers in California

Medicare billing

Part B allowed, 2024
$74,984
Medicare patients
169
Services billed
823

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
IbrancePalbociclib46$699,354
KisqaliRibociclib Succinate31$529,201
VerzenioAbemaciclib20$294,864
TukysaTucatinib11$252,045
TruqapCapivasertib12$245,423
Exemestane51$7,911
Letrozole148$3,676
Anastrozole27$560
Tamoxifen Citrate19$469
Gabapentin30$436
Prochlorperazine Maleate16$425
Duloxetine Hcl20$260
Famotidine28$156
Potassium Chloride13$133
LoperamideLoperamide Hcl13$125

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
PfizerIbrance$20,000$699,35446 claims
NovartisKisqali$282$529,20131 claims
Lilly USA, LLCVerzenio$40$294,86420 claims
Seagen Inc.Tukysa$367$252,04511 claims
AstraZenecaTruqap$353$245,42312 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 40th percentile of 379 medical oncology providers in California.

Other medical oncology in Duarte

See the full list for California

Where these figures come from

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