Sean Bak, MD
Orthopaedic Surgery · Dearborn, MINPI 1386746675
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $61,895 of the $79,426 with a category attached, or 77.9%. 10 manufacturers reported payments, led by Zimmer Biomet at 40.0% of the total. 2025 is the largest year on record at $23,729, 5.5 times the $4,311 reported in 2019. Among orthopaedic 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 145 payments — averaging $547.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$32K
- Catalyst Orthoscience$28K
- Encore Medical, LP$10K
- Pinnacle, Inc$6K
- Stryker$3K
- Arthrex$1K
- plus $118 from 4 others
Across 6 payments — averaging $6750.78 each. An ownership or investment interest held by the physician or an immediate family member.
- Catalyst Orthoscience$41K
What the payments were for
- Consulting fees$61,89578%
- Travel & lodging$9,11811%
- Food & beverage$3,9585%
- Education$4,4546%
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 | 52 | $31,793 |
| Catalyst Orthoscience | 22 | $27,847 |
| Encore Medical, LP | 14 | $10,195 |
| Pinnacle, Inc | 14 | $5,852 |
| Stryker(2 entities) | 23 | $2,589 |
| Arthrex | 14 | $1,032 |
| Boston Scientific | 2 | $45 |
| Smith+Nephew | 2 | $44 |
| Medtronic | 1 | $21 |
| Musculoskeletal Transplant Foundation Inc. | 1 | $7 |
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.
- DJO SURGICAL$29,447
- Catalyst Total CSR$16,778
- Catalyst CSR Shoulder System$5,921
- Connected Health-MyMobility$1,500
- REUNION$1,222
- CSR & R1 Reverse Total Shoulder Systems$930
- R1 Reverse Total Shoulder$930
- Archer 3D Software$930
- MAKO$568
- Comprehensive Shoulder System$424
- Subscapularis Repair Kits$195
- Osseofit$163
- Identity$163
- mymobility Platform$137
- AEQUALIS PERFORM$123
- BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION$123
- Comprehensive Micro Stem$101
How this compares
$79,426 in reported general payments places this provider in the 90th 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 |
|---|---|---|
| Calcitonin-SalmonCalcitonin,salmon,synthetic | 13 | $586 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Dearborn
- Asheesh BediAnn Arbor$9.4M
- Jerome WiaterBeverly Hills$3.9M
- Mark PintoChelsea$3.2M
- Kyle AndersonBingham Farms$3.1M
- Stephen BartolDetroit$2.6M
- Jad KhalilSouthfield$1.9M
- Jeffrey FischgrundSouthfield$1.8M
- John BlahaAnn Arbor$1.5M
- David MarkelSouthfield$1.5M
- Christopher ChuinardTraverse City$1.4M
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.