William Merhi, DO
Interventional Cardiology · Grand Rapids, MINPI 1386786044
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $86,500 of the $114,238 with a category attached, or 75.7%. Medtronic accounts for 91.6% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2019 at $38,312 and has fallen 93.5% since, to $2,485 in 2025.
Across 252 payments — averaging $453.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$105K
- Abbott$4K
- Edwards Lifesciences$3K
- Ancora Heart, Inc.$1K
- Boston Scientific$1K
- Livanova USA, Inc.$79
- plus $56 from 1 others
Across 337 payments — averaging $5525.99 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.
- Medtronic$1.4M
- Boston Scientific$491K
- Abbott$11K
What the payments were for
- Royalty or licence$8,9988%
- Speaking & faculty fees$86,50076%
- Travel & lodging$9,8429%
- Food & beverage$8,8998%
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 |
|---|---|---|
| Medtronic(2 entities) | 198 | $104,638 |
| Abbott | 29 | $4,050 |
| Edwards Lifesciences | 13 | $2,814 |
| Ancora Heart, Inc. | 4 | $1,378 |
| Boston Scientific | 6 | $1,224 |
| Livanova USA, Inc. | 1 | $79 |
| Baxter Healthcare | 1 | $56 |
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.
- COREVALVE EVOLUT R$47,144
- CoreValve Evolut$42,555
- VenaSeal$8,998
- EVOQUE$2,395
- AccuCinch$1,355
- GENERAL - THERAPIES$1,017
- TENDYNE$942
- MitraClip$551
- NAVITOR$377
- Mitra Clip system$249
- TRICLIP$179
- AMPLATZER Occluders$178
- Edwards SAPIEN 3 Ultra Transcatheter Heart Valve$155
- PASCAL$135
- MitraClip System$110
- APOLLOTM$108
How this compares
$114,238 in reported general payments places this provider in the 85th percentile of 187 interventional cardiology 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 |
|---|---|---|
| EliquisApixaban | 19 | $10,501 |
| Prednisone | 24 | $28 |
| Amoxicillin | 16 | $14 |
Paid to pharmacies, not to this prescriber.
Other interventional cardiology in Grand Rapids
- Duane BerkompasGrand Rapids$159K
- David WohnsGrand Rapids$129K
- Timothy JosephGrand Rapids$17K
- Devraj SukulGrand Rapids$13K
- Cody CarterGrand Rapids$12K
- Amir KakiDetroit$1.8M
- Tamam MohamadDetroit$960K
- Paul GrossmanAnn Arbor$630K
- Jason RicciPetoskey$594K
- Tim FischellKalamazoo$468K
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.