Christopher Chen, MD
Orthopaedic Surgery · Gettysburg, PANPI 1982047031
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (58.9%), food and beverage and education — rather than concentrated in one kind of arrangement. 10 manufacturers reported payments, led by Zimmer Biomet at 45.3% of the total. Reporting peaked in 2019 at $2,023 and has fallen 81.7% since, to $369 in 2025. That places this record below the midpoint for orthopaedic surgery clinicians in PA, where the typical reported total is $3,243.
Across 40 payments — averaging $71.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$1K
- Stryker$832
- Merck$317
- Supreme Orthopedic Systems, LLC$166
- Johnson & Johnson$115
- Pacira Therapeutics, Inc.$51
- plus $86 from 4 others
What the payments were for
- Travel & lodging$1,68759%
- Food & beverage$1,13039%
- Education$462%
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 |
|---|---|---|
| Zimmer Biomet | 13 | $1,295 |
| Stryker | 3 | $832 |
| Merck | 15 | $317 |
| Supreme Orthopedic Systems, LLC | 2 | $166 |
| Johnson & Johnson | 1 | $115 |
| Pacira Therapeutics, Inc. | 2 | $51 |
| Vertex | 1 | $33 |
| Axogen | 1 | $22 |
| Smith+Nephew | 1 | $18 |
| Boston Scientific | 1 | $14 |
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
$2,863 in reported general payments places this provider in the 45th percentile of 1,048 orthopaedic surgery providers in Pennsylvania.
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 orthopaedic surgery in Gettysburg
- William HozackBensalem$10.6M
- Jess LonnerBryn Mawr$7.8M
- Gerald WilliamsBryn Mawr$6.8M
- Mark LazarusBensalem$6.4M
- John FenlinPhiladelphia$5.9M
- Peter SharkeyKing Of Prussia$5.7M
- Alexander VaccaroPhiladelphia$4.5M
- Selene ParekhBensalem$4.5M
- Joseph AbboudPhiladelphia$3.9M
- Jonathan GarinoMalvern$3.8M
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.