Jeffrey Ma, MD
Cornea and External Diseases Specialist · Sacramento, CANPI 1750709648
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 25 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Alcon accounts for 62.1% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2024 at $498 and has fallen 77.2% since, to $114 in 2025. That places this record below the midpoint for cornea and external diseases specialist clinicians in CA, where the typical reported total is $4,024.
Across 25 payments — averaging $54.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$848
- Biotissue Holdings Inc.$346
- Harrow Eye, LLC$115
- GSK$23
- Sight Sciences, Inc.$21
- Shire North American Group Inc$12
What the payments were for
- Food & beverage$1,366100%
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
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 |
|---|---|---|
| Alcon | 17 | $848 |
| Biotissue Holdings Inc. | 4 | $346 |
| Harrow Eye, LLC | 1 | $115 |
| GSK | 1 | $23 |
| Sight Sciences, Inc. | 1 | $21 |
| Shire North American Group Inc | 1 | $12 |
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.
- Clareon$222
- AcrySof IQ PanOptix$113
How this compares
$1,366 in reported general payments places this provider in the 25th percentile of 50 cornea and external diseases specialist providers in California.
See all cornea and external diseases 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 |
|---|---|---|
| MieboPerfluorohexyloctane/Pf | 48 | $50,352 |
| RestasisCyclosporine | 63 | $47,810 |
| Cyclosporine | 91 | $43,910 |
| XiidraLifitegrast | 25 | $24,308 |
| LumiganBimatoprost | 35 | $22,176 |
| Prednisolone Acetate | 293 | $10,852 |
| Latanoprost | 402 | $7,641 |
| Fluorometholone | 89 | $6,578 |
| Travoprost | 25 | $4,421 |
| MoxifloxacinMoxifloxacin Hcl | 222 | $4,184 |
| Doxycycline Hyclate | 63 | $2,482 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 94 | $2,096 |
| ErythromycinErythromycin Base | 108 | $1,370 |
| Timolol Maleate | 112 | $1,082 |
| Brimonidine Tartrate | 62 | $993 |
Paid to pharmacies, not to this prescriber.
Other cornea and external diseases specialist in Sacramento
- Peter AndrewsSacramento$14K
- Bradley BarnettSacramento$12K
- Lillian TranSacramento$2K
- Mathew MargolisSacramento$1K
- Milad ModabberSacramento$965
- Erika EllisSacramento$372
- Sumit GargIrvine$808K
- Jillian ChongBeverly Hills$113K
- Tyson KimSan Francisco$91K
- Edward MancheStanford$78K
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.