RxDoctor Payments Data

Michael Cheng, MD

Medical Oncology · San Francisco, CANPI 1306105309

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $20,271 of the $26,809 with a category attached, or 75.6%. 13 manufacturers reported payments, led by AstraZeneca at 55.2% of the total. Reporting peaked in 2020 at $13,896 and has fallen 66.7% since, to $4,630 in 2025.

$26,809in general payments, 2019–2025

Across 68 payments — averaging $394.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AstraZeneca$15K
  • Pfizer$3K
  • Bayer$2K
  • Johnson & Johnson$1K
  • Merck$1K
  • Cepheid$1K
  • plus $3K from 7 others
$620,193in research payments, 2019–2025

Across 85 payments — averaging $7296.38 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

  • Pfizer$197K
  • Genentech, Inc.$136K
  • Array Biopharma Inc$126K
  • Daiichi Sankyo Inc.$80K
  • Seagen Inc.$46K
  • Coherus Oncology, Inc.$27K
  • plus $10K from 1 others

What the payments were for

  • Consulting fees$20,27176%
  • Travel & lodging$4,61017%
  • Food & beverage$1,9287%

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

$26,809 in reported general payments places this provider in the 70th percentile of 379 medical oncology providers in California.

See all medical oncology providers in California →

Medicare billing

Part B allowed, 2024
$78,537
Medicare patients
89
Services billed
1,318

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
TagrissoOsimertinib Mesylate70$1,325,862
AlecensaAlectinib Hcl24$411,784
TepmetkoTepotinib Hcl11$240,176
Ondansetron Hcl11$210
Prochlorperazine Maleate12$117

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
AstraZenecaTagrisso$14,796$1,325,86270 claims
Genentech USA, Inc.Alecensa$68$411,78424 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 70th percentile of 379 medical oncology providers in California.

Other medical oncology in San Francisco

See the full list for California →

Where these figures come from

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