John Chi, MD
Neurological Surgery · Boston, MANPI 1649473000
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $230,543 of the $280,031 with a category attached, or 82.3%. 23 manufacturers reported payments, led by Stryker at 42.9% of the total. Among neurological surgery clinicians in MA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 453 payments — averaging $618.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$120K
- Orthofix Medical, Inc.$68K
- VB Spine LLC$24K
- Medical Device Business Services, Inc.$22K
- Spineology Inc.$15K
- Depuy Synthes Products, Inc.$9K
- plus $21K from 17 others
Across 84 payments — averaging $7817.30 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.
- Orthofix Medical, Inc.$470K
- Premia Spine, Ltd.$163K
- Spineology Inc.$23K
What the payments were for
- Consulting fees$230,54382%
- Travel & lodging$24,6849%
- Food & beverage$24,8049%
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 |
|---|---|---|
| Stryker | 248 | $120,092 |
| Orthofix Medical, Inc. | 43 | $67,714 |
| VB Spine LLC | 12 | $24,221 |
| Medical Device Business Services, Inc. | 25 | $22,247 |
| Spineology Inc. | 10 | $15,213 |
| Depuy Synthes Products, Inc. | 12 | $9,196 |
| Nanohive Medical LLC | 8 | $5,138 |
| Alphatec Spine, Inc | 6 | $3,269 |
| Johnson & Johnson | 34 | $2,674 |
| Premia Spine, Ltd. | 2 | $2,366 |
| Kuros Biosciences USA, Inc | 10 | $2,217 |
| CTL Medical Corporation | 8 | $1,678 |
| Icotec Medical Inc. | 12 | $1,481 |
| Globus Medical | 9 | $814 |
| Carbofix Spine Inc | 2 | $530 |
| Intrinsic Therapeutics | 2 | $332 |
| Pacira Pharmaceuticals Incorporated | 3 | $289 |
| Carlsmed, Inc. | 1 | $176 |
| Si-bone, Inc. | 1 | $133 |
| Bioventus LLC | 2 | $97 |
| Zimmer Biomet | 1 | $63 |
| Misonix Inc | 1 | $46 |
| Amgen | 1 | $44 |
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.
- EVEREST SPINAL SYSTEM$61,441
- M6-C$44,499
- CAPRI CORPECTOMY CAGE SYSTEM$34,821
- CASCADIA INTERBODY SYSTEM$24,617
- SERRATO$22,799
- VIPER$13,901
- CONDUIT$12,752
- TRITANIUM$12,471
- COUGAR$12,365
- AIRO$11,250
- LATERAL ACCESS SPINAL SYSTEM$11,000
- EVEREST XT$11,000
- BRAINLAB$10,820
- OptiMesh IDE Study$10,667
- ALEUTIAN TLIF MI$10,250
- EVEREST MI$6,285
- ES2$5,000
- SAHARA$5,000
- GENERAL K2M PRODUCT DISCUSSION$4,813
- CAPRI$3,937
How this compares
$280,031 in reported general payments places this provider in the 95th percentile of 183 neurological surgery providers in Massachusetts.
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 |
|---|---|---|
| Methylprednisolone | 58 | $446 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Boston
- Simcha WellerBoston$905K
- Aman PatelBoston$734K
- Alireza AtriBoston$503K
- Myron RolleBoston$290K
- Philipp TausskyBoston$224K
- Robert RichardsonBoston$190K
- Brendon BootBoston$149K
- Muhammad Abd-El-BarrBoston$140K
- Brian NahedBoston$97K
- Thomas NohBoston$69K
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.