Thomas Donaldson, MD
Adult Reconstructive Orthopaedic Surgery · Colton, CANPI 1457315269
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $740,463 of the $892,843 with a category attached, or 82.9%. Zimmer Biomet accounts for 90.7% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2019 at $284,089 and has fallen 73.7% since, to $74,676 in 2025. Among adult reconstructive orthopaedic surgery clinicians in CA 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 199 payments — averaging $4486.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$810K
- Kyocera Medical Technologies, Inc.$73K
- Exactech, Inc.$9K
- Medacta USA, Inc.$915
- Ossur Americas, Inc.$261
- Bodycad USA Corp$153
- plus $177 from 5 others
What the payments were for
- Royalty or licence$740,46383%
- Consulting fees$128,57514%
- Travel & lodging$18,7292%
- Food & beverage$5,0581%
- Education$170%
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 | 160 | $810,180 |
| Kyocera Medical Technologies, Inc. | 5 | $72,592 |
| Exactech, Inc. | 13 | $8,564 |
| Medacta USA, Inc. | 11 | $915 |
| Ossur Americas, Inc. | 3 | $261 |
| Bodycad USA Corp | 1 | $153 |
| Stryker | 2 | $94 |
| Medtronic | 1 | $23 |
| AbbVie | 1 | $22 |
| Boston Scientific | 1 | $19 |
| Trevena, Inc. | 1 | $17 |
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.
- Vanguard$596,403
- Arcos$113,498
- G7$49,411
- Vanguard Complete Knee Solution$32,519
- Taperloc$29,019
- Arcos Revision Hip Instrumentation$22,510
- TRULIANT$8,039
- Persona$4,813
- Avenir$4,471
- Persona Revision$4,000
- Trabecular Metal (TM)$2,250
- GMK SPHERE$367
- Unloader One X$255
- GMK Sphere Revision System$143
- QUADRA$116
- Knees Product Portfolio$114
- EQUINOXE$114
How this compares
$892,843 in reported general payments places this provider in the 90th percentile of 136 adult reconstructive orthopaedic surgery providers in California.
See all adult reconstructive orthopaedic 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Vancomycin Hcl | 19 | $4,035 |
| Baclofen | 31 | $308 |
| Meloxicam | 137 | $298 |
| Amoxicillin | 53 | $127 |
| Prednisone | 27 | $70 |
Paid to pharmacies, not to this prescriber.
Other adult reconstructive orthopaedic surgery in Colton
- William MaloneyStanford$11.1M
- James CaillouetteNewport Beach$4.8M
- William LongLos Angeles$2.8M
- John DearbornMenlo Park$2.5M
- William Bugbeela Jolla$2.1M
- James HuddlestonStanford$1.5M
- Alexander SahFremont$1.2M
- John DianaNapa$981K
- Derek AmanatullahStanford$828K
- Nathanael HeckmannLos Angeles$722K
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.