Christopher Chapman, MD
Ophthalmology · Detroit, MINPI 1225044324
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $972 of the $1,184 with a category attached, or 82.1%. 13 manufacturers reported payments, led by Regeneron Healthcare Solutions, Inc. at 28.5% of the total. 2025 is the largest year on record at $465, 2.3 times the $199 reported in 2019. That places this record below the midpoint for ophthalmology clinicians in MI, where the typical reported total is $1,066.
Across 34 payments — averaging $34.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$337
- Covidien LP$178
- AbbVie$140
- Astellas Pharma Global Development$129
- Astellas Pharma US Inc$126
- ANI Pharmaceuticals, Inc.$90
- plus $183 from 7 others
What the payments were for
- Food & beverage$97282%
- Education$21218%
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 |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | 9 | $337 |
| Covidien LP | 2 | $178 |
| AbbVie(2 entities) | 6 | $140 |
| Astellas Pharma Global Development | 2 | $129 |
| Astellas Pharma US Inc | 4 | $126 |
| ANI Pharmaceuticals, Inc. | 1 | $90 |
| Alcon | 2 | $45 |
| Genentech USA, Inc. | 2 | $45 |
| Eyepoint US, Inc. | 1 | $23 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 1 | $21 |
| Oculus Surgical Inc. | 2 | $20 |
| Apellis Pharmaceuticals, Inc. | 1 | $16 |
| Beaver-visitec International, 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.
- EYLEA HD$106
How this compares
$1,184 in reported general payments places this provider in the 50th 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 |
|---|---|---|
| Prednisolone Acetate | 90 | $2,853 |
| Atropine Sulfate | 39 | $1,172 |
| Ketorolac Tromethamine | 56 | $1,036 |
| Gentamicin Sulfate | 38 | $241 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 12 | $79 |
| Diazepam | 18 | $12 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Detroit
- Bret HughesDetroit$123K
- Pradeepa YoganathanDetroit$115K
- Michael ColemanDetroit$20K
- Daniel ZuckerbrodDetroit$16K
- Daniel AppleDetroit$10K
- Gabriel SosneDetroit$9K
- Manjool ShahAnn Arbor$609K
- Gregory KatzYpsilanti$401K
- Timothy PageBirmingham$250K
- David ZacksAnn Arbor$177K
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.