RxDoctor Payments Data

Sandeep Kunwar, MD

Neurological Surgery · Fremont, CANPI 1508807462

Payments from drug & device makers

What this record shows

This record is dominated by royalties or licence payments: $389,623 of the $460,521 with a category attached, or 84.6%. Spine Wave, Inc. accounts for 68.4% of it on its own, with 16 other manufacturers making up the rest. Reporting peaked in 2020 at $195,860 and has fallen 99.1% since, to $1,676 in 2025. Among neurological 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.

$460,521in general payments, 2019–2025

Across 175 payments — averaging $2631.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Spine Wave, Inc.$315K
  • Globus Medical$59K
  • Spineology Inc.$44K
  • Benvenue Medical Inc$16K
  • Zimvie Inc.$12K
  • Zimmer Biomet$7K
  • plus $8K from 11 others
$15,215in research payments, 2019–2025

Across 6 payments — averaging $2535.83 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.

  • Spineology Inc.$15K
$80,900in ownership & investment interests, 2019–2025

Across 6 payments — averaging $13,483 each. An ownership or investment interest held by the physician or an immediate family member.

  • Providence Medical Technology, Inc.$81K

What the payments were for

  • Royalty or licence$389,62385%
  • Consulting fees$47,82510%
  • Speaking & faculty fees$5,6881%
  • Travel & lodging$12,3473%
  • Food & beverage$4,8751%
  • Entertainment$1640%

General payments by program year

19
20
21
22
23
24
25

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.

How this compares

$460,521 in reported general payments places this provider in the 95th percentile of 773 neurological surgery providers in California.

See all neurological surgery providers in California

Medicare billing

Part B allowed, 2024
$141,434
Medicare patients
145
Services billed
318

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 neurological surgery in Fremont

See the full list for California

Where these figures come from

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