Marshall Ching, MD
Orthopedic Surgery · Oroville, CANPI 1215036835
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $16,032,634 of the $17,844,329 with a category attached, or 89.8%. Medtronic accounts for 100.0% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2020 at $14,706,491 and has fallen 99.7% since, to $44,919 in 2025. Among orthopedic 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 40 payments — averaging $446,108 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$17.8M
- Zimmer Biomet$1K
- Pacira Therapeutics, Inc.$95
- Sonex Health, Inc.$57
- Pacira Pharmaceuticals Incorporated$54
- Johnson & Johnson$34
- plus $61 from 3 others
What the payments were for
- Royalty or licence$16,032,63490%
- Travel & lodging$6960%
- Food & beverage$8410%
- Other$1,810,15810%
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 |
|---|---|---|
| Medtronic(4 entities) | 16 | $17,842,792 |
| Zimmer Biomet | 10 | $1,236 |
| Pacira Therapeutics, Inc. | 6 | $95 |
| Sonex Health, Inc. | 2 | $57 |
| Pacira Pharmaceuticals Incorporated | 2 | $54 |
| Johnson & Johnson | 1 | $34 |
| Heron Therapeutics, Inc. | 1 | $23 |
| Acell, Inc. | 1 | $21 |
| Abbott | 1 | $18 |
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.
- InPen$15,338,762
- VenaSeal$879,024
- INPEN SMART INSULIN DELIVERY SYSTEM$655,656
- ROSA$1,007
How this compares
$17,844,329 in reported general payments places this provider in the 95th percentile of 130 orthopedic 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 48 | $451 |
| Ibuprofen | 11 | $95 |
Paid to pharmacies, not to this prescriber.
Other orthopedic surgery in Oroville
- Brian ChingOroville$1.4M
- Ran SchwarzkopfOrange$2M
- Peter KurzweilLong Beach$494K
- Scott Hackerla Mesa$434K
- Richard NussbaumSherman Oaks$238K
- William KimTorrance$164K
- Peter BordenTorrance$111K
- Raymond FolmarIrvine$70K
- Phillip YuanLong Beach$60K
- Milind PanseHemet$34K
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.