Mark Elzik, MD
Hand Surgery · Mission Viejo, CANPI 1093904302
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (54.6%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. Endo Pharmaceuticals Inc. accounts for 74.6% of it on its own, with 36 other manufacturers making up the rest. Among hand 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 436 payments — averaging $503.77 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Endo Pharmaceuticals Inc.$164K
- Endo USA, Inc.$45K
- Sonex Health, Inc.$4K
- Stryker$3K
- Advanced Orthopaedic Solutions, Inc.$1K
- Smith+Nephew$307
- plus $2K from 31 others
Across 2 payments — averaging $3562.50 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.
- Endo Pharmaceuticals Inc.$7K
What the payments were for
- Consulting fees$62,61529%
- Speaking & faculty fees$120,01855%
- Travel & lodging$24,26411%
- Food & beverage$12,6076%
- Education$1400%
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 |
|---|---|---|
| Endo Pharmaceuticals Inc. | 214 | $163,873 |
| Endo USA, Inc. | 61 | $44,907 |
| Sonex Health, Inc. | 33 | $4,263 |
| Stryker | 37 | $2,613 |
| Advanced Orthopaedic Solutions, Inc. | 2 | $1,387 |
| Smith+Nephew | 10 | $307 |
| Saxum Surgical, Inc. | 4 | $269 |
| DJO, LLC | 2 | $255 |
| Amgen | 15 | $194 |
| Bioventus LLC | 7 | $183 |
| Zimmer Biomet | 5 | $165 |
| Medline Industries LP | 7 | $143 |
| Skeletal Dynamics Inc | 1 | $119 |
| Integra Lifesciences Corporation | 5 | $106 |
| Linvatec Corporation | 5 | $102 |
| Exsomed Corporation | 1 | $78 |
| Medtronic | 2 | $68 |
| Johnson & Johnson | 2 | $61 |
| Arthrosurface Incorporated | 3 | $60 |
| Davol Inc. | 1 | $54 |
| BREG, Inc | 1 | $50 |
| Globus Medical | 1 | $50 |
| Aroa Biosurgery Incorporated | 1 | $36 |
| Acumed LLC | 2 | $34 |
| Biotissue Holdings Inc. | 2 | $30 |
| Pacira Pharmaceuticals Incorporated | 1 | $30 |
| Inari Medical, Inc. | 1 | $24 |
| Heron Therapeutics, Inc. | 1 | $22 |
| Convatec Inc. | 1 | $21 |
| Avanos Medical | 1 | $21 |
| Molnlycke Health Care US, LLC | 1 | $20 |
| Heraeus Medical, LLC. | 1 | $20 |
| Fidia Pharma USA Inc. | 1 | $18 |
| Axogen | 1 | $17 |
| Nevro Corp. | 1 | $16 |
| Medartis Inc. | 1 | $15 |
| Acell, Inc. | 1 | $13 |
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
$219,644 in reported general payments places this provider in the 95th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Ondansetron OdtOndansetron | 116 | $878 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 112 | $610 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 34 | $237 |
| Cephalexin | 59 | $118 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 19 | $81 |
Paid to pharmacies, not to this prescriber.
Other hand surgery in Mission Viejo
- Evan GuerreroMission Viejo$13K
- 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
- Nathan HoekzemaClovis$400K
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.