John Itamura, MD
Orthopaedic Surgery · Pasadena, CANPI 1164476719
Payments from drug & device makers
Across 421 payments — averaging $1491.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Shoulder Innovations, Inc.$304K
- Encore Medical, LP$91K
- Genesis Software Innovations, LLC$82K
- Acumed LLC$81K
- Stryker$40K
- Arthrex$8K
- plus $22K from 32 others
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 |
|---|---|---|
| Shoulder Innovations, Inc. | 85 | $304,466 |
| Encore Medical, LP | 47 | $90,684 |
| Genesis Software Innovations, LLC | 11 | $82,282 |
| Acumed LLC | 67 | $80,669 |
| Stryker(2 entities) | 67 | $40,018 |
| Arthrex | 9 | $7,963 |
| Zimmer Biomet | 9 | $7,635 |
| Advanced Orthopaedic Solutions, Inc. | 10 | $6,716 |
| G21 SRL | 1 | $2,100 |
| Biotissue Holdings Inc. | 42 | $1,195 |
| Restor3d, Inc. | 3 | $1,015 |
| Saxum Surgical, Inc. | 8 | $596 |
| Smith+Nephew | 9 | $522 |
| Dynasplint Systems Inc. | 2 | $362 |
| BD | 3 | $349 |
| Bioventus LLC | 7 | $192 |
| Linvatec Corporation | 1 | $171 |
| Radius Health, Inc. | 7 | $152 |
| Johnson & Johnson | 3 | $145 |
| Baxter Healthcare | 3 | $138 |
| Limacorporate S.p.a. | 1 | $92 |
| Trice Medical, Inc. | 1 | $89 |
| Dunamis Medical, LLC | 1 | $76 |
| Innovation Technologies Inc | 1 | $71 |
| Pfizer | 3 | $61 |
| KCI USA, Inc. | 2 | $57 |
| Amniox Medical, Inc. | 4 | $50 |
| Biodelivery Sciences International, Inc. | 2 | $35 |
| Amgen | 2 | $30 |
| CPM Medical Consultants, LLC | 1 | $29 |
| Hikma Pharmaceuticals USA | 2 | $28 |
| Misonix Inc | 1 | $24 |
| Checkpoint Surgical, Inc | 1 | $20 |
| Avanos Medical | 1 | $20 |
| Collegium Pharmaceutical, Inc. | 1 | $15 |
| Arthrosurface Incorporated | 1 | $15 |
| ERMI LLC | 1 | $14 |
| DJO, LLC | 1 | $14 |
How this compares
$628,112 in reported general payments places this provider in the 95th percentile of 1,808 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.
Other orthopaedic surgery in Pasadena
- Bradford HackArcadia$18.3M
- Robert GorabOrange$14.5M
- Kelly VinceLos Angeles$9.6M
- Stephen HowellSacramento$9.4M
- Thomas CoonRed Bluff$9.2M
- Peter NewtonSan Diego$7M
- Nirav AminPlacentia$5.8M
- Tom NorrisSan Francisco$5.3M
- Jay LiebermanLos Angeles$4.8M
- Sigurd BervenSan Francisco$4.1M
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.