Adam Warren, MD
Orthopaedic Trauma · Oakland, CANPI 1205164761
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $20,927 of the $26,472 with a category attached, or 79.1%. Medical Device Business Services, Inc. accounts for 82.3% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2024 at $11,150 and has fallen 97.3% since, to $301 in 2025.
Across 75 payments — averaging $352.97 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medical Device Business Services, Inc.$22K
- Johnson & Johnson$3K
- Evolution Surgical, Inc$787
- Si-bone, Inc.$638
- Bioventus LLC$66
- Sequoia Surgical, Inc.$32
- plus $29 from 2 others
What the payments were for
- Consulting fees$20,92779%
- Travel & lodging$1,3415%
- Food & beverage$3,41813%
- Education$7873%
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 |
|---|---|---|
| Medical Device Business Services, Inc. | 20 | $21,776 |
| Johnson & Johnson | 42 | $3,145 |
| Evolution Surgical, Inc | 1 | $787 |
| Si-bone, Inc. | 5 | $638 |
| Bioventus LLC | 4 | $66 |
| Sequoia Surgical, Inc. | 1 | $32 |
| Avanos Medical | 1 | $17 |
| Paragon 28, Inc. | 1 | $13 |
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.
- NA$749
- MOTOBAND$631
- IFUSE IMPLANT SYSTEM$483
- LCP$292
- IM NAILS$235
- HAMMERLOCK$218
- LCP PLATES & SCREWS$118
- VA-LCP PLATES & SCREWS$116
- VA-LCP$113
How this compares
$26,472 in reported general payments places this provider in the 65th percentile of 106 orthopaedic trauma 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 19 | $168 |
| Oxycodone Hcl | 12 | $71 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic trauma in Oakland
- Michael GardnerStanford$2.9M
- Aaron OsborneRedding$1.3M
- Robert Tonksla Jolla$1.3M
- John ScolaroOrange$1M
- David LowenbergSan Francisco$788K
- Eric LindvallClovis$609K
- Christopher LeeLos Angeles$475K
- Joshua GaryLos Angeles$466K
- Christopher HoshinoTorrance$356K
- Julius BishopStanford$349K
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.