Ryan Siwiec, DO
Orthopaedic Surgery · Auburn Hills, MINPI 1841429925
Payments from drug & device makers
Across 224 payments — averaging $50.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pinnacle, Inc$4K
- Stryker$2K
- Arthrex$1K
- Smith+Nephew$866
- Ferring Pharmaceuticals Inc.$485
- Amgen$452
- plus $2K from 26 others
What the payments were for
- Travel & lodging$2,26320%
- Food & beverage$5,20846%
- Education$3,82134%
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 |
|---|---|---|
| Pinnacle, Inc | 16 | $4,258 |
| Stryker | 20 | $2,182 |
| Arthrex | 13 | $1,150 |
| Smith+Nephew | 26 | $866 |
| Ferring Pharmaceuticals Inc. | 32 | $485 |
| Amgen | 56 | $452 |
| Globus Medical | 2 | $240 |
| Zimmer Biomet | 3 | $240 |
| Vericel Corporation | 5 | $210 |
| Pacira Pharmaceuticals Incorporated | 7 | $131 |
| Johnson & Johnson | 3 | $128 |
| Vertiflex, Inc. | 1 | $116 |
| Medtronic | 5 | $86 |
| Vertex | 4 | $77 |
| Trilliant Surgical LLC. | 1 | $75 |
| Pacira Therapeutics, Inc. | 4 | $74 |
| Bsn Medical Inc | 1 | $59 |
| Orthofix Medical, Inc. | 3 | $58 |
| Bioventus LLC | 3 | $56 |
| Fidia Pharma USA Inc. | 3 | $43 |
| Nevro Corp. | 1 | $43 |
| Heron Therapeutics, Inc. | 2 | $41 |
| Convatec Inc. | 2 | $35 |
| Dynasplint Systems Inc. | 2 | $32 |
| Linvatec Corporation | 2 | $32 |
| Spineology Inc. | 1 | $28 |
| Mimedx Group, Inc. | 1 | $21 |
| Sonex Health, Inc. | 1 | $19 |
| Orthogenrx Inc. | 1 | $19 |
| Integra Lifesciences Corporation | 1 | $19 |
| Anika Therapeutics, Inc. | 1 | $12 |
| Advanced Oxygen Therapy Inc. | 1 | $8 |
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.
- MAKO$1,555
- TAPESTRY$196
- Distal Femur Plate System$153
- Superion ISS$116
How this compares
$11,293 in reported general payments places this provider in the 70th 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 |
|---|---|---|
| Meloxicam | 124 | $268 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 24 | $198 |
| Ibuprofen | 16 | $136 |
| Oxycodone Hcl | 15 | $65 |
| Mupirocin | 14 | $63 |
| Gabapentin | 20 | $58 |
| Celecoxib | 11 | $57 |
| Tramadol Hcl | 21 | $35 |
| Amoxicillin | 19 | $17 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Auburn Hills
- Asheesh BediAnn Arbor$9.4M
- Jerome WiaterBeverly Hills$5.7M
- Jad KhalilSouthfield$3.7M
- Mark PintoChelsea$3.2M
- Kyle AndersonBingham Farms$3.1M
- Stephen BartolDetroit$2.6M
- Jeffrey FischgrundSouthfield$1.8M
- David MarkelSouthfield$1.7M
- Richard EastonRochester Hills$1.6M
- Shariff BishaiTroy$1.5M
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.