Donald Bittner
Hand Surgery · Fullerton, CANPI 1538169578
Payments from drug & device makers
Across 30 payments — averaging $17.49 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Endo Pharmaceuticals Inc.$334
- Stryker$78
- Amgen$56
- Johnson & Johnson$24
- Ferring Pharmaceuticals Inc.$19
- Endo USA, Inc.$14
What the payments were for
- Food & beverage$44084%
- Education$8516%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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. | 22 | $334 |
| Stryker | 2 | $78 |
| Amgen | 3 | $56 |
| Johnson & Johnson | 1 | $24 |
| Ferring Pharmaceuticals Inc. | 1 | $19 |
| Endo USA, Inc. | 1 | $14 |
How this compares
$525 in reported general payments places this provider in the 30th 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 Fullerton
- Michael Thompsonla Jolla$8.8M
- Steven ShinLos Angeles$2.9M
- Amy LaddStanford$1.7M
- Emilie CheungStanford$1.2M
- Andrew HartmanOceanside$957K
- Nancy LynchSan Mateo$862K
- Jeffrey YaoRedwood City$730K
- Michael BehrmanSanta Barbara$593K
- Prosper BenhaimLos Angeles$492K
- Robin KamalStanford$436K
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.