Theodore Leng, MD
Retina Specialist · Stanford, CANPI 1144438987
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $195,837 of the $222,582 with a category attached, or 88.0%. It is spread thinly across 24 manufacturers, the largest accounting for just 17.8%. Among retina specialist clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 178 payments — averaging $1250.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Topcon Healthcare, Inc.$40K
- Boehringer Ingelheim International GmbH$36K
- Genentech, Inc.$34K
- Alcon$34K
- Regeneron Healthcare Solutions, Inc.$27K
- F. Hoffmann-la Roche AG$23K
- plus $30K from 18 others
Across 97 payments — averaging $1625.17 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.
- F. Hoffmann-la Roche AG$62K
- Astellas Pharma Global Development$43K
- Topcon Corporation$29K
- Genentech, Inc.$14K
- Regeneron$10K
What the payments were for
- Consulting fees$195,83788%
- Speaking & faculty fees$4,1742%
- Travel & lodging$16,5087%
- Food & beverage$6,0443%
- Gifts$190%
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 |
|---|---|---|
| Topcon Healthcare, Inc. | 19 | $39,529 |
| Boehringer Ingelheim International GmbH | 16 | $35,724 |
| Genentech, Inc. | 22 | $33,937 |
| Alcon | 29 | $33,857 |
| Regeneron Healthcare Solutions, Inc. | 15 | $26,548 |
| F. Hoffmann-la Roche AG | 10 | $23,198 |
| Apellis Pharmaceuticals, Inc. | 12 | $7,800 |
| Boehringer Ingelheim | 2 | $5,737 |
| Genentech USA, Inc. | 15 | $4,416 |
| Carl Zeiss Meditec, Inc. | 2 | $3,070 |
| Alcon Research LLC | 4 | $2,800 |
| Eyepoint US, Inc. | 3 | $1,713 |
| Digital Diagnostics Inc. | 1 | $1,200 |
| Astellas Pharma US Inc | 6 | $641 |
| Iridex Corporation | 1 | $500 |
| Regeneron | 8 | $481 |
| Astellas Pharma Global Development | 3 | $373 |
| Alimera Sciences, Inc. | 3 | $358 |
| Ocular Therapeutix, Inc. | 2 | $264 |
| Dompe US, Inc. | 1 | $153 |
| Biogen | 1 | $128 |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $119 |
| Carl Zeiss Meditec AG | 1 | $19 |
| Beaver-visitec International, Inc. | 1 | $17 |
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.
- EYLEA$25,380
- Constellation$17,946
- Luxor$11,900
- NGENUITY$11,200
- Alcon Greishaber Finesse$11,200
- EYLEA HD$5,944
- CellCept$4,200
- VABYSMO$3,904
- CIRRUS HD-OCT$3,000
- Syfovre$2,816
- Lucentis$2,229
- YUTIQ$1,620
- Non-Covered Product$1,500
- LumineticsCore$1,200
- Izervay$734
- Tecnis IOL$478
- Iluvien$358
- DEXTENZA$214
- Oxervate$153
- SUSVIMO$149
How this compares
$222,582 in reported general payments places this provider in the 90th percentile of 187 retina specialist 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 |
|---|---|---|
| Azelastine Hcl | 54 | $1,829 |
| Prednisolone Acetate | 24 | $756 |
| Ketorolac Tromethamine | 24 | $476 |
Paid to pharmacies, not to this prescriber.
Other retina specialist in Stanford
- Ehsan RahimyStanford$1.5M
- Diana DoStanford$318K
- Charles DeboerStanford$79K
- Prithvi MruthyunjayaStanford$74K
- Mary HartnettStanford$73K
- Dilsher DhootSanta Barbara$1.9M
- Darius MoshfeghiPalo Alto$1.4M
- Nathan SteinleSanta Barbara$1.1M
- Roger GoldbergWalnut Creek$1.1M
- Baruch KuppermannIrvine$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.