Kenneth Bark, MD
Colon & Rectal Surgery · Rochester Hills, MINPI 1932303484
Payments from drug & device makers
What this record shows
This record is dominated by education: $36,000 of the $49,683 with a category attached, or 72.5%. Intuitive Surgical accounts for 93.2% of it on its own, with 21 other manufacturers making up the rest. Reporting peaked in 2021 at $21,096 and has fallen 96.9% since, to $657 in 2025. Among colon & rectal surgery clinicians in MI 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 164 payments — averaging $302.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$46K
- AbbVie$706
- Johnson & Johnson$605
- Surgical Specialties Corporation (US), Inc. (dba Corza Medical)$500
- Medtronic$347
- Takeda Pharmaceuticals U.S.A., Inc.$308
- plus $898 from 16 others
What the payments were for
- Consulting fees$5001%
- Speaking & faculty fees$8,00016%
- Travel & lodging$2551%
- Food & beverage$4,92810%
- Education$36,00072%
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 | 35 | $46,319 |
| AbbVie | 39 | $706 |
| Johnson & Johnson | 29 | $605 |
| Surgical Specialties Corporation (US), Inc. (dba Corza Medical) | 1 | $500 |
| Medtronic(2 entities) | 10 | $347 |
| Takeda Pharmaceuticals U.S.A., Inc. | 20 | $308 |
| Aroa Biosurgery Incorporated | 1 | $218 |
| Vioptix Inc | 1 | $136 |
| Amgen | 5 | $98 |
| Bristol Myers Squibb | 4 | $65 |
| Lilly USA, LLC | 3 | $56 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $52 |
| Axonics, Inc. | 2 | $42 |
| Ferring Pharmaceuticals Inc. | 2 | $36 |
| Hologic Sales And Service, LLC | 1 | $35 |
| Merck | 2 | $33 |
| Sandoz | 1 | $26 |
| Smith+Nephew | 1 | $26 |
| Alfasigma USA, Inc. | 1 | $22 |
| Regeneron Healthcare Solutions, Inc. | 1 | $21 |
| Daiichi Sankyo Inc. | 1 | $16 |
| LSI Solutions Inc | 1 | $15 |
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.
- Da Vinci Surgical System$45,796
- INTERSTIM$165
How this compares
$49,683 in reported general payments places this provider in the 90th percentile of 72 colon & rectal 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Mesalamine | 57 | $32,762 |
| Betamethasone Valerate | 15 | $330 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 25 | $310 |
| Neomycin Sulfate | 38 | $208 |
| Oxycodone Hcl | 39 | $101 |
| Metronidazole | 45 | $66 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Rochester Hills
- Jasneet BhullarRochester Hills$58K
- Murad Bani HaniRochester Hills$18K
- Gautham ChitragariRochester Hills$12K
- Jon HainRochester Hills$3K
- Raymond LandesRochester Hills$2K
- Yongjin LeeRochester Hills$1K
- Amanda McClureYpsilanti$150K
- Anthony SenagoreSaginaw$126K
- Robert ClearyYpsilanti$121K
- Melissa ChangYpsilanti$82K
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.