John Itamura, MD
Orthopaedic Surgery · Pasadena, CANPI 1164476719
Payments from drug & device makers
What this record shows
The money is spread across several categories — royalties or licence payments (40.9%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. 38 manufacturers reported payments, led by Shoulder Innovations, Inc. at 54.2% of the total. 2025 is the largest year on record at $221,961, 2.6 times the $86,096 reported in 2019. Among orthopaedic surgery clinicians in CA 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 414 payments — averaging $1356.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Shoulder Innovations, Inc.$304K
- Encore Medical, LP$91K
- Acumed LLC$81K
- Stryker$40K
- Genesis Software Innovations, LLC$23K
- Arthrex$8K
- plus $15K from 32 others
Across 1 payment — averaging $7355.00 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.
- Zimmer Biomet$7K
Across 6 payments — averaging $9839.84 each. An ownership or investment interest held by the physician or an immediate family member.
- Genesis Software Innovations, LLC$59K
- Shoulder Innovations, Inc.$0
What the payments were for
- Royalty or licence$229,99641%
- Consulting fees$151,14827%
- Speaking & faculty fees$114,76020%
- Travel & lodging$27,3995%
- Food & beverage$16,1383%
- Education$1,1560%
- Gifts$7250%
- Entertainment$910%
- Charitable contribution$6,2821%
- Ownership interest$14,0232%
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. | 84 | $304,466 |
| Encore Medical, LP | 47 | $90,684 |
| Acumed LLC | 67 | $80,669 |
| Stryker(2 entities) | 67 | $40,018 |
| Genesis Software Innovations, LLC | 6 | $23,243 |
| Arthrex | 9 | $7,963 |
| 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 |
| Zimmer Biomet | 8 | $280 |
| 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 |
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.
- InSet System$302,999
- DJO SURGICAL$140,137
- ACUMED$102,325
- Anatomic Radial Head System$44,719
- Elbow Plating System$43,748
- Clavicle Plating System$36,070
- Acu-Loc Wrist Plating System$26,743
- SIMPLICITI$21,278
- Hand Fracture System$18,730
- DJO Surgical AltiVate Reverse$17,195
- DJO Surgical AltiVate Anatomic System$16,668
- DJO Surgical Turon Modular Shoulder System$16,337
- Polarus 3 Solution$13,439
- Acu-Sinch Repair System$11,875
- BLUEPRINT PSI SYSTEM$9,855
- OsteoMed$8,800
- Total Wrist Fusion Plating System$7,875
- Osteotomy System$7,875
- AEQUALIS ASCEND FLEX$4,779
- AEQUALIS PERFORM$4,571
How this compares
$561,718 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Lidocaine | 14 | $1,490 |
| Celecoxib | 40 | $879 |
| Doxycycline Monohydrate | 20 | $466 |
| Diclofenac Sodium | 20 | $318 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 29 | $302 |
| Amoxicillin | 65 | $284 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 30 | $204 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 16 | $179 |
| Methylprednisolone | 26 | $142 |
| Ondansetron OdtOndansetron | 13 | $114 |
| Cyclobenzaprine Hcl | 14 | $98 |
| Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen | 11 | $79 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Pasadena
- Bradford HackArcadia$18.3M
- Robert GorabOrange$13.6M
- Kelly VinceLos Angeles$9.6M
- Stephen HowellSacramento$9.4M
- Thomas CoonRed Bluff$9.2M
- Nirav AminPlacentia$5.6M
- Tom NorrisSan Francisco$5.3M
- Jay LiebermanLos Angeles$4.8M
- Peter NewtonSan Diego$4.2M
- 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.