Michael Charters, MD
Orthopaedic Surgery · Detroit, MINPI 1538396114
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $22,375 of the $31,747 with a category attached, or 70.5%. Zimmer Biomet accounts for 98.9% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2021 at $13,205 and has fallen 90.9% since, to $1,202 in 2025.
Across 96 payments — averaging $330.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$31K
- Stryker$237
- Innovation Technologies Inc$42
- Avanos Medical$35
- Orthosensor Inc.$35
Across 1 payment — averaging $5000.00 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.
- Zimmer Biomet$5K
What the payments were for
- Consulting fees$22,37570%
- Travel & lodging$7,75524%
- Food & beverage$1,6175%
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 |
|---|---|---|
| Zimmer Biomet | 91 | $31,399 |
| Stryker | 1 | $237 |
| Innovation Technologies Inc | 1 | $42 |
| Avanos Medical | 2 | $35 |
| Orthosensor Inc. | 1 | $35 |
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
$31,747 in reported general payments places this provider in the 85th percentile of 829 orthopaedic 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 30 | $122 |
| Methocarbamol | 31 | $117 |
| Oxycodone Hcl | 11 | $47 |
| Tramadol Hcl | 15 | $28 |
| Cephalexin | 24 | $25 |
| Amoxicillin | 12 | $17 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Detroit
- Stephen BartolDetroit$2.6M
- Craig SilvertonDetroit$725K
- Stephanie MuhDetroit$459K
- Thomas LynchDetroit$221K
- Jonathan BramanDetroit$112K
- Ryan BergerDetroit$84K
- Rahul VaidyaDetroit$72K
- Hussein DarwicheDetroit$68K
- Asheesh BediAnn Arbor$9.4M
- Jerome WiaterBeverly Hills$3.9M
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.