Percy Lee, MD
Radiation Oncology · Irvine, CANPI 1447442504
Payments from drug & device makers
Across 127 payments — averaging $18,896 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$2.3M
- Viewray Technologies Inc$41K
- Siemens Medical Solutions USA, Inc.$27K
- GE HealthCare$22K
- Varian Medical Systems, Inc.$8K
- F. Hoffmann-la Roche AG$8K
- plus $9K from 12 others
Across 10 payments — averaging $1736.46 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.
- Genentech, Inc.$11K
- Viewray Technologies Inc$7K
General payments by program year
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.
| Company | Payments | Total |
|---|---|---|
| AstraZeneca | 40 | $2,284,140 |
| Viewray Technologies Inc | 37 | $41,436 |
| Siemens Medical Solutions USA, Inc. | 8 | $26,785 |
| GE HealthCare | 5 | $22,001 |
| Varian Medical Systems, Inc. | 5 | $8,347 |
| F. Hoffmann-la Roche AG | 5 | $8,250 |
| Astrazeneca UK Limited | 3 | $3,915 |
| Genentech, Inc. | 2 | $2,298 |
| Icotec Medical Inc. | 11 | $1,207 |
| Elekta Limited | 1 | $550 |
| Elekta, Inc. | 3 | $384 |
| Monteris Medical Corporation | 1 | $130 |
| Daiichi Sankyo Inc. | 1 | $116 |
| Amgen | 1 | $80 |
| Zap Surgical Systems, Inc. | 1 | $51 |
| Empnia, Inc. | 1 | $44 |
| Sumitomo Pharma America, Inc. | 1 | $16 |
| Boston Scientific | 1 | $16 |
How this compares
$2,399,765 in reported general payments places this provider in the 95th percentile of 627 radiation oncology providers in California.
Medicare billing
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.
Other radiation oncology in Irvine
- Kenneth TokitaIrvine$76K
- Loren Mellla Jolla$10M
- Hyun KimDuarte$6M
- Megan DalyOrange$4.5M
- Felix FengSan Francisco$1.8M
- Jeffrey WongDuarte$1.7M
- Arta MonjazebSacramento$1.5M
- Rakesh PatelLos Gatos$1.3M
- Maximilian DiehnStanford$1.2M
- Rizwan NuraniApple Valley$1.1M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.