Brittany Simmons, MD
Ophthalmology · Ann Arbor, MINPI 1033537923
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $3,300 of the $4,719 with a category attached, or 69.9%. Genentech USA, Inc. accounts for 86.0% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2024 at $4,391 and has fallen 96.6% since, to $148 in 2025.
Across 11 payments — averaging $429.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genentech USA, Inc.$4K
- Amgen$466
- Abiomed$148
- Gilead$34
- Biotissue Holdings Inc.$13
Across 62 payments — averaging $1521.05 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.
- Argenx US, Inc.$94K
What the payments were for
- Consulting fees$3,30070%
- Travel & lodging$3658%
- Food & beverage$1,05422%
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 |
|---|---|---|
| Genentech USA, Inc. | 3 | $4,059 |
| Amgen(2 entities) | 4 | $466 |
| Abiomed | 1 | $148 |
| Gilead | 2 | $34 |
| Biotissue Holdings Inc. | 1 | $13 |
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.
- TEPEZZA$463
How this compares
$4,719 in reported general payments places this provider in the 85th percentile of 674 ophthalmology providers in Michigan.
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 |
|---|---|---|
| ErythromycinErythromycin Base | 87 | $1,079 |
| Doxycycline Hyclate | 14 | $248 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Ann Arbor
- Manjool ShahAnn Arbor$609K
- David ZacksAnn Arbor$177K
- Jason MillerAnn Arbor$104K
- Yannis PaulusAnn Arbor$85K
- Shilpa KodatiAnn Arbor$75K
- Amanda BicketAnn Arbor$34K
- Vinay AakaluAnn Arbor$16K
- Nita ValikodathAnn Arbor$16K
- Marguerite WeinertAnn Arbor$16K
- Abigail FahimAnn Arbor$14K
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.