James Shankwiler, MD
Orthopaedic Surgery · Pasadena, CANPI 1487641114
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $35,750 of the $38,018 with a category attached, or 94.0%. Zimmer Biomet accounts for 99.9% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2019 at $17,048 and has fallen 52.2% since, to $8,145 in 2023.
Across 45 payments — averaging $844.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$38K
- Johnson & Johnson$20
What the payments were for
- Consulting fees$35,75094%
- Travel & lodging$1,6194%
- Food & beverage$6492%
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 | 44 | $37,998 |
| Johnson & Johnson | 1 | $20 |
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.
- Comprehensive Reverse$25,920
- Comprehensive Anatomic$24,170
- AS 2.0$9,500
- Comprehensive Shoulder System$8,503
- Trabecular Metal (TM) Reverse$2,250
- Arcos$1,750
- Comprehensive Primary Stem$923
How this compares
$38,018 in reported general payments places this provider in the 85th 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 |
|---|---|---|
| Celecoxib | 48 | $1,375 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Pasadena
- John ItamuraPasadena$562K
- 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
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.