Igor Immerman, MD
Hand Surgery · San Francisco, CANPI 1043474596
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (32.8%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. 14 manufacturers reported payments, led by Evolution Surgical, Inc at 35.0% of the total. Reporting peaked in 2019 at $4,715 and has fallen 83.8% since, to $766 in 2025.
Across 71 payments — averaging $204.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Evolution Surgical, Inc$5K
- Checkpoint Surgical, Inc$2K
- Axogen$2K
- Globus Medical$2K
- Skeletal Dynamics Inc$2K
- Integra Lifesciences Corporation$319
- plus $1K from 8 others
What the payments were for
- Speaking & faculty fees$1,67512%
- Travel & lodging$3,41523%
- Food & beverage$4,68832%
- Education$4,77133%
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 |
|---|---|---|
| Evolution Surgical, Inc | 12 | $5,089 |
| Checkpoint Surgical, Inc | 4 | $2,155 |
| Axogen | 22 | $2,045 |
| Globus Medical | 4 | $1,912 |
| Skeletal Dynamics Inc | 6 | $1,796 |
| Integra Lifesciences Corporation | 7 | $319 |
| Alafair Biosciences, Inc. | 2 | $305 |
| Stryker | 4 | $268 |
| Musculoskeletal Transplant Foundation Inc. | 1 | $174 |
| Endo Pharmaceuticals Inc. | 1 | $163 |
| Zimmer Biomet | 3 | $145 |
| Acumed LLC | 3 | $145 |
| SPR Therapeutics, Inc | 1 | $20 |
| Smith+Nephew | 1 | $12 |
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.
- Checkpoint Stimulators$2,133
- Proximal Humerus Plate$1,653
- Geminus$1,615
- Align$1,615
- IJS$1,615
- Implate$1,615
- AVANCE NERVE GRAFT$1,039
- AxoGuard Nerve Connector$429
- AxoGuard Nerve Protector$429
- INTEGRA$327
- VersaWrap$305
- AXOGUARD HA+ NERVE PROTECTOR$194
- AxoGuard Nerve Cap$194
- XIAFLEX$163
- Anthem$127
- VARIAX$125
- Clavical Fixation (16-186)$120
- INTEGRA DERMAL REGENERATION TEMPLATE$109
How this compares
$14,549 in reported general payments places this provider in the 80th percentile of 249 hand 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.
Other hand surgery in San Francisco
- Nicolas LeeSan Francisco$17K
- Nicole SchroederSan Francisco$11K
- Steven ShinLos Angeles$2.8M
- Amy LaddStanford$1.4M
- Emilie CheungStanford$1.1M
- Andrew HartmanOceanside$957K
- Nancy LynchSan Mateo$862K
- Jeffrey YaoRedwood City$622K
- Prosper BenhaimLos Angeles$492K
- Wayne PanOakland$423K
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.