Michael Oh, MD
Neurological Surgery · Orange, CANPI 1275508525
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $50,925 of the $74,968 with a category attached, or 67.9%. 30 manufacturers reported payments, led by GS Solutions, Inc. at 52.9% of the total. 2025 is the largest year on record at $60,555, more than ten times the $1,834 reported in 2019.
Across 176 payments — averaging $425.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GS Solutions, Inc.$40K
- Xtant Medical Inc$9K
- Spineology Inc.$9K
- Kyocera Medical Technologies, Inc.$4K
- Medtronic$3K
- Globus Medical$2K
- plus $7K from 24 others
Across 68 payments — averaging $4591.52 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.
- Spineart SA$85K
- Globus Medical$80K
- Medtronic$54K
- Cerapedics Inc.$43K
- Premia Spine, Ltd.$30K
- GS Solutions, Inc.$17K
- plus $3K from 2 others
What the payments were for
- Consulting fees$50,92568%
- Speaking & faculty fees$6,7509%
- Travel & lodging$3,9885%
- Food & beverage$13,30518%
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 |
|---|---|---|
| GS Solutions, Inc. | 9 | $39,648 |
| Xtant Medical Inc | 5 | $9,444 |
| Spineology Inc. | 20 | $9,374 |
| Kyocera Medical Technologies, Inc. | 2 | $4,448 |
| Medtronic(2 entities) | 40 | $3,469 |
| Globus Medical(2 entities) | 26 | $1,684 |
| MML US, Inc. | 12 | $1,282 |
| Stryker | 9 | $1,224 |
| Si-bone, Inc. | 6 | $896 |
| Abbott | 11 | $748 |
| Integrity Implants Inc. Dba Accelus | 3 | $323 |
| Biotronik NRO, Inc. | 2 | $318 |
| Centinel Spine, LLC | 5 | $281 |
| Augmedics Inc. | 2 | $258 |
| Orthofix Medical, Inc. | 2 | $179 |
| Integrity Implants Inc. | 3 | $138 |
| Neo Spine USA, Inc. | 2 | $132 |
| Alphatec Spine, Inc | 1 | $132 |
| Baxter Healthcare | 2 | $124 |
| Johnson & Johnson | 1 | $107 |
| Kuros Biosciences USA, Inc | 1 | $99 |
| Surgalign Spine Technologies, Inc. | 2 | $95 |
| Boston Scientific | 2 | $92 |
| Surgical Theater. Inc. | 1 | $90 |
| Cerapedics Inc. | 2 | $83 |
| Amplify Surgical, Inc. | 1 | $80 |
| Icotec Medical Inc. | 1 | $63 |
| Spineart USA Inc | 1 | $57 |
| Life Spine, Inc. | 1 | $56 |
| Carlsmed, Inc. | 1 | $46 |
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.
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$8,734
- ReActiv8$1,124
- Xvision$1,041
- MAZOR X SYSTEM$840
- UNIVERSAL NEURO$702
- iFuse Implant$550
- INFUSE BONE GRAFT$342
- AQUAMANTYS$197
- 1788$175
- N/A$175
- BIOTRONIK$173
- MARS$166
- PRODISC L$153
- ANTERALIGN SPINAL SYSTEM WITH TITAN NANOLOCK SURFACE TECHNOLOGY$153
- Senza$145
- Prospera$145
- Proclaim Family of SCS IPGs$144
- Sable$144
- mild Device Kit$136
- 7D Surgical System$135
How this compares
$74,968 in reported general payments places this provider in the 85th percentile of 773 neurological surgery providers in California.
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.
Other neurological surgery in Orange
- Christopher AmesSan Francisco$7.1M
- Larry KhooLos Angeles$2.8M
- Samy AbdouSan Diego$2.4M
- Bret AbshireMurrieta$2.3M
- William TaylorSan Diego$2.1M
- Tooraj GravoriEncino$2M
- Ali MesiwalaRancho Cucamonga$1.5M
- Joseph OsorioSan Diego$1.3M
- Ian JohnsonFresno$1.3M
- Aaron Cohen-GadolLos Angeles$1.3M
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.