David Chang, DMD
Oral and Maxillofacial Surgery · Boston, MANPI 1083879829
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $39,114 of the $41,935 with a category attached, or 93.3%. Hiossen, Inc. accounts for 93.3% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2021 at $13,176 and has fallen 97.8% since, to $288 in 2025. Among oral and maxillofacial surgery clinicians in MA 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 56 payments — averaging $748.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Hiossen, Inc.$39K
- Stryker$1K
- Straumann USA LLC$391
- Axogen$345
- Integra Lifesciences Corporation$308
- Nobel Biocare USA$162
- plus $320 from 6 others
What the payments were for
- Speaking & faculty fees$39,11493%
- Food & beverage$2,4956%
- Education$3251%
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 |
|---|---|---|
| Hiossen, Inc. | 5 | $39,114 |
| Stryker | 16 | $1,294 |
| Straumann USA LLC | 12 | $391 |
| Axogen | 7 | $345 |
| Integra Lifesciences Corporation | 5 | $308 |
| Nobel Biocare USA | 4 | $162 |
| Johnson & Johnson | 2 | $122 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $91 |
| Acera Surgical, Inc. | 1 | $50 |
| Geistlich Pharma, North America, Inc. | 1 | $32 |
| Medical Device Business Services, Inc. | 1 | $14 |
| Sonendo Inc | 1 | $11 |
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.
- PATIENT-FITTED TMJ RECONSTRUCTIVE PROSTHESIS SYSTEM$703
- VSP SYSTEM, VSP CRANIAL$442
- ENDODONTIC POSTS, ENDOODONTIC HAND INSTRUMENT$235
- AxoGuard Nerve Connector$116
- AxoGuard Nerve Protector$116
- UNIVERSAL ORTHOGNATHIC$112
- MINI PLATING SYSTEM (MPS)$112
- UNIVERSAL UPPER-FACE$112
- UNIVERSAL NEURO$112
- CUSTOM IMPLANTS$112
- VSP ORTHOGNATHIC$103
- NA$101
How this compares
$41,935 in reported general payments places this provider in the 95th percentile of 247 oral and maxillofacial surgery providers in Massachusetts.
See all oral and maxillofacial surgery providers in Massachusetts →
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 |
|---|---|---|
| Cyclobenzaprine Hcl | 14 | $141 |
| Amoxicillin | 37 | $93 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 15 | $42 |
Paid to pharmacies, not to this prescriber.
Other oral and maxillofacial surgery in Boston
- Briana BurrisBoston$67K
- Cory ResnickBoston$65K
- Daniel ChoiBoston$48K
- Miguel VidalBoston$25K
- Hussam BatalBoston$19K
- Amir NaimiBoston$16K
- Steven ScrivaniBoston$15K
- Andrew GrossBoston$12K
- Jeffrey HajibandehBoston$11K
- Zachary PeacockBoston$10K
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.