Benjamin Samstein, MD
Surgery · Ann Arbor, MINPI 1164463733
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $6,782 of the $10,764 with a category attached, or 63.0%. 8 manufacturers reported payments, led by Intuitive Surgical at 40.2% of the total. Reporting peaked in 2024 at $4,519 and has fallen 66.8% since, to $1,501 in 2025.
Across 45 payments — averaging $239.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$4K
- Transmedics, Inc.$3K
- Histosonics, Inc.$3K
- Olympus America Inc.$304
- Johnson & Johnson$186
- Organox Ltd$172
- plus $110 from 2 others
Across 2 payments — averaging $14,059 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.
- Johnson & Johnson$28K
What the payments were for
- Travel & lodging$6,78263%
- Food & beverage$2,48323%
- Education$1,50014%
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 |
|---|---|---|
| Intuitive Surgical | 24 | $4,332 |
| Transmedics, Inc. | 3 | $2,976 |
| Histosonics, Inc. | 9 | $2,685 |
| Olympus America Inc. | 3 | $304 |
| Johnson & Johnson | 3 | $186 |
| Organox Ltd | 1 | $172 |
| E.r. Squibb & Sons, L.L.C. | 1 | $92 |
| Gilead | 1 | $18 |
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.
How this compares
$10,764 in reported general payments places this provider in the 80th percentile of 1,081 surgery 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.
Other surgery in Ann Arbor
- Robert BartlettAnn Arbor$859K
- Jenny Shao KashmanianAnn Arbor$80K
- Hope JacksonAnn Arbor$68K
- Anne EhlersAnn Arbor$38K
- Matthew FourmanMonroe$492K
- Bruce McIntoshRochester Hills$435K
- Jon SchramZeeland$261K
- Eric DaviesBrighton$258K
- Robert LyonsYpsilanti$196K
- Joel StrehlTraverse City$170K
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.