Lawrence Chang, MD
Plastic Surgery · Newark, DENPI 1275577843
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $144,234 of the $160,136 with a category attached, or 90.1%. Convatec Inc. accounts for 98.1% of it on its own, with 19 other manufacturers making up the rest. 2025 is the largest year on record at $120,983, more than ten times the $1,209 reported in 2019.
Across 183 payments — averaging $875.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Convatec Inc.$157K
- AbbVie$1K
- Merz North America, Inc.$792
- Regeneron Healthcare Solutions, Inc.$319
- Galderma Laboratories, L.p.$246
- Mentor Worldwide LLC$195
- plus $454 from 14 others
What the payments were for
- Consulting fees$144,23490%
- Travel & lodging$9,5036%
- Food & beverage$6,3994%
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 |
|---|---|---|
| Convatec Inc. | 95 | $157,108 |
| AbbVie(2 entities) | 43 | $1,022 |
| Merz North America, Inc. | 4 | $792 |
| Regeneron Healthcare Solutions, Inc. | 4 | $319 |
| Galderma Laboratories, L.p. | 9 | $246 |
| Mentor Worldwide LLC | 8 | $195 |
| TELA Bio, Inc. | 4 | $118 |
| Kerecis Limited | 3 | $49 |
| Baxter Healthcare | 1 | $49 |
| Stryker | 1 | $43 |
| Kowa Pharmaceuticals America, Inc. | 2 | $27 |
| Molnlycke Health Care US, LLC | 1 | $22 |
| TEI Biosciences Inc | 1 | $21 |
| Vertex | 1 | $21 |
| Sientra, Inc. | 1 | $19 |
| Avanos Medical | 1 | $19 |
| Novo Nordisk | 1 | $18 |
| Solta Medical, A Division Of Bausch Health US, LLC | 1 | $17 |
| Novartis | 1 | $16 |
| DUSA Pharmaceuticals, Inc. | 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.
- InnovaMatrix AC$155,846
- LIBTAYO$250
- NATRELLE$120
- NATRELLE SALINE-FILLED BREAST IMPLANTS$106
How this compares
Too few plastic surgery providers in Delawareto place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| Cephalexin | 100 | $798 |
| Doxycycline Hyclate | 62 | $790 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 32 | $292 |
| Ibuprofen | 59 | $231 |
| Ketoconazole | 18 | $186 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 21 | $145 |
| Ciprofloxacin Hcl | 16 | $132 |
| SsdSilver Sulfadiazine | 13 | $103 |
| Oxycodone Hcl | 51 | $102 |
| Ondansetron OdtOndansetron | 17 | $89 |
| Amoxicillin | 18 | $87 |
| Silver Sulfadiazine | 12 | $73 |
| Triamcinolone Acetonide | 12 | $71 |
| Alprazolam | 18 | $14 |
Paid to pharmacies, not to this prescriber.
Other plastic surgery in Newark
- Katheryn WarrenNewark$1K
- Abdollah MalekNewark$608
- Joseph ThorntonNewark$363
- John GillespiWilmington$5K
- John DanyoWilmington$2K
- Edward CatersonWilmington$976
- Joseph NapoliWilmington$581
- Patrick SwierLewes$243
- Mario AycartWilmington$85
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.