Richard Chang, MD
Orthopaedic Surgery · Flemington, NJNPI 1790789618
Payments from drug & device makers
Across 27 payments — averaging $98.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Maxx Health Inc$2K
- Guard Medical Inc.$287
- Zimmer Biomet$155
- Seapearl East, Inc$110
- AstraZeneca$45
- Biocomposites Inc$30
- plus $136 from 8 others
What the payments were for
- Consulting fees$1,35051%
- Speaking & faculty fees$151%
- Food & beverage$1,24147%
- Education$592%
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 |
|---|---|---|
| Maxx Health Inc | 7 | $1,902 |
| Guard Medical Inc. | 3 | $287 |
| Zimmer Biomet | 3 | $155 |
| Seapearl East, Inc | 1 | $110 |
| AstraZeneca | 3 | $45 |
| Biocomposites Inc | 1 | $30 |
| Endo Pharmaceuticals Inc. | 2 | $29 |
| Si-bone, Inc. | 1 | $20 |
| Sanofi Pasteur Inc. | 1 | $16 |
| Acorda Therapeutics, Inc | 1 | $15 |
| Zimvie Inc. | 1 | $15 |
| Bioventus LLC | 1 | $15 |
| Promius Pharma LLC | 1 | $14 |
| Ferring Pharmaceuticals 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.
- Summa Wrist System$183
- NPseal$156
- Summa Ortho Elbow$149
- Summa Ortho Distal Radius$149
How this compares
$2,665 in reported general payments places this provider in the 50th percentile of 587 orthopaedic surgery providers in New Jersey.
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 |
|---|---|---|
| Celecoxib | 29 | $535 |
| Methylprednisolone | 50 | $324 |
| Meloxicam | 122 | $269 |
| Naproxen | 30 | $244 |
| Diclofenac Sodium | 19 | $161 |
| Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen | 15 | $40 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Flemington
- Michael KellyHackensack$9.7M
- Mark HartzbandParamus$9.4M
- Luke AustinSewell$4.3M
- Randal BetzLawrenceville$3M
- Kenneth MontgomeryMorristown$2.7M
- Zachary PostEgg Harbor Township$1.7M
- Gregg KleinParamus$1.6M
- Harlan LevineMontvale$1.5M
- Jeffrey AbramsPrinceton$1.5M
- Michael AstParamus$1.3M
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.