Kais Zakharia, MD
Gastroenterology · Dearborn, MINPI 1942680657
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (37.4%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. 6 manufacturers reported payments, led by Olympus Medical Systems Corporation at 37.4% of the total. 2025 is the largest year on record at $4,979, more than ten times the $241 reported in 2022.
Across 21 payments — averaging $408.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus Medical Systems Corporation$3K
- Alcresta Therapeutics, Inc.$2K
- Ovesco Endoscopy USA, Inc.$1K
- Olympus Corporation Of The Americas$1K
- ERBE USA Inc$1K
- Boston Scientific$414
What the payments were for
- Consulting fees$3,20637%
- Speaking & faculty fees$2,60030%
- Travel & lodging$2,34027%
- Food & beverage$4335%
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 |
|---|---|---|
| Olympus Medical Systems Corporation | 1 | $3,206 |
| Alcresta Therapeutics, Inc. | 1 | $1,600 |
| Ovesco Endoscopy USA, Inc. | 1 | $1,232 |
| Olympus Corporation Of The Americas | 11 | $1,127 |
| ERBE USA Inc | 1 | $1,000 |
| Boston Scientific | 6 | $414 |
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
$8,579 in reported general payments places this provider in the 80th percentile of 497 gastroenterology 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 |
|---|---|---|
| XifaxanRifaximin | 25 | $74,497 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 90 | $1,675 |
| Omeprazole | 66 | $1,253 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 11 | $808 |
| Pantoprazole Sodium | 28 | $344 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 12 | $236 |
| Baclofen | 11 | $235 |
| Dicyclomine Hcl | 11 | $193 |
| Spironolactone | 11 | $136 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Dearborn
- Mazen ElatracheDearborn$28K
- Mohammed ArmanDearborn$21K
- Kimberly BrownDetroit$733K
- Dilip MoonkaDetroit$611K
- Philip SchoenfeldAnn Arbor$539K
- Michelle Muza-MoonsAnn Arbor$481K
- Partha NandiTroy$377K
- Bradford WhitmerSaint Clair Shores$206K
- Mohammed BarawiSt Clair Shores$193K
- Stuart GordonDetroit$178K
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.