Percy Lee, MD
Radiation Oncology · Irvine, CANPI 1447442504
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $90,925 of the $124,599 with a category attached, or 73.0%. 18 manufacturers reported payments, led by Viewray Technologies Inc at 31.7% of the total. 2025 is the largest year on record at $36,827, 2.0 times the $18,134 reported in 2019. Among radiation oncology clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 118 payments — averaging $1055.92 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Viewray Technologies Inc$39K
- AstraZeneca$33K
- GE HealthCare$22K
- Varian Medical Systems, Inc.$8K
- F. Hoffmann-la Roche AG$8K
- Siemens Medical Solutions USA, Inc.$4K
- plus $9K from 12 others
Across 19 payments — averaging $120,660 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.
- AstraZeneca$2.3M
- Siemens Medical Solutions USA, Inc.$23K
- Genentech, Inc.$11K
- Viewray Technologies Inc$9K
What the payments were for
- Consulting fees$90,92573%
- Speaking & faculty fees$25,09620%
- Travel & lodging$4,1943%
- Food & beverage$4,3844%
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 |
|---|---|---|
| Viewray Technologies Inc | 36 | $39,436 |
| AstraZeneca | 33 | $33,473 |
| GE HealthCare | 5 | $22,001 |
| Varian Medical Systems, Inc. | 5 | $8,347 |
| F. Hoffmann-la Roche AG | 5 | $8,250 |
| Siemens Medical Solutions USA, Inc. | 7 | $4,285 |
| 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 |
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.
- IMFINZI$26,254
- MRIdian LINAC$21,470
- MRIdian$17,736
- Alecensa$8,085
- Other$7,746
- TAGRISSO$3,775
- Varian Ethos Treatment Planning$2,151
- TrueBeam$2,025
- ELEKTA MEDICAL LINEAR ACCELERATOR$1,219
- TECENTRIQ$813
- VADER PEDICLE SYSTEM 6.0, SCREW, Carbon/PEEK, POLYAX., FEN., O 5.5 X 45 MM$719
- VADER PEDICLE SYSTEM, ROD, Carbon/PEEK, CURVED, 6.0 R450 X 200 MM$719
- KONG-TL VBR E, EXPANDABLE BODY, L, 19 MM X 27 - 37 MM$719
- KONG-TL VBR, END PLATE, ROUND, L AND SCREW, 12 X 43 MM$719
- KONG-TL VBR, END PLATE, RECTANGULAR, M AND SCREW, 12 X 33 MM$719
- ELEKTA UNITY$167
- Neuroblate$130
- Enhertu$116
How this compares
$124,599 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Tamsulosin Hcl | 47 | $269 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Irvine
- Rakesh PatelLos Gatos$1.3M
- Amir LavafPalm Springs$411K
- Albert ChangLos Angeles$290K
- Arya AminiDuarte$265K
- Rizwan NuraniApple Valley$220K
- Drew MoghanakiLos Angeles$183K
- Jyoti MayadevSan Diego$170K
- Felix FengSan Francisco$99K
- Hyun KimDuarte$97K
- Amar KishanLos Angeles$74K
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.