Nirav Amin, MD
Orthopaedic Surgery · Placentia, CANPI 1477714665
Payments from drug & device makers
What this record shows
This record is dominated by other: $3,836,783 of the $5,612,402 with a category attached, or 68.4%. Linvatec Corporation accounts for 66.1% of it on its own, with 59 other manufacturers making up the rest. Reporting peaked in 2022 at $2,277,817 and has fallen 55.8% since, to $1,006,545 in 2025. 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 1,877 payments — averaging $2990.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Linvatec Corporation$3.7M
- Zimmer Biomet$483K
- Smith+Nephew$450K
- Pacira Pharmaceuticals Incorporated$347K
- Trice Medical, Inc.$177K
- Medical Device Business Services, Inc.$97K
- plus $348K from 54 others
Across 16 payments — averaging $3706.38 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.
- Smith+Nephew$50K
- Anika Therapeutics, Inc.$5K
- Zimmer Biomet$4K
Across 18 payments — averaging $8342.58 each. An ownership or investment interest held by the physician or an immediate family member.
- Zimmer Biomet$150K
- Biorez, Inc.$0
- Trice Medical, Inc.$0
What the payments were for
- Royalty or licence$111,1832%
- Consulting fees$917,18516%
- Speaking & faculty fees$301,1925%
- Travel & lodging$206,6004%
- Food & beverage$46,9601%
- Education$192,4233%
- Gifts$770%
- Other$3,836,78368%
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.
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.
- BioBrace 23mm$3,711,390
- EXPAREL$315,466
- Zilretta$261,973
- TAPESTRY$249,408
- Iovera$227,782
- Segway blade or mieye camera$165,394
- MICRORAPTOR$107,134
- JOURNAVX$69,297
- Journey II XR$58,053
- REAL INTELLIGENCE$58,032
- Biceptor$56,895
- Juggerknotless Soft Anchor$56,017
- Journey II$45,538
- DSUVIA$34,044
- Posimir$31,740
- ANJESO$29,577
- TFN ADVANCED$28,516
- ACTIS$28,516
- VA-LCP PLATES & SCREWS$28,516
- Regeneten$27,671
How this compares
$5,612,402 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 |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 52 | $332 |
| Ibuprofen | 59 | $324 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 27 | $218 |
| Ondansetron Hcl | 44 | $176 |
| Oxycodone Hcl | 23 | $104 |
| Cephalexin | 29 | $89 |
| Ondansetron OdtOndansetron | 21 | $74 |
| Meloxicam | 11 | $8 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Placentia
- Bradford HackArcadia$18.3M
- Robert GorabOrange$13.6M
- Kelly VinceLos Angeles$9.6M
- Stephen HowellSacramento$9.4M
- Thomas CoonRed Bluff$9.2M
- Tom NorrisSan Francisco$5.3M
- Jay LiebermanLos Angeles$4.8M
- Peter NewtonSan Diego$4.2M
- Sigurd BervenSan Francisco$4.1M
- Brad PenenbergBeverly Hills$4M
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.