Mark Amster, MD
Dermatology · Brighton, MANPI 1518947068
Payments from drug & device makers
Across 1,713 payments — averaging $2909.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Incyte Corporation$1.6M
- Mitsubishi Tanabe Pharma Development America, Inc.$511K
- Bausch Health US, LLC$446K
- Janssen Research & Development, LLC$367K
- Amgen$325K
- Tanabe Pharma America, Inc.$294K
- plus $1.4M from 35 others
Across 36 payments — averaging $5134.89 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Nielsen Biosciences, Inc.$179K
- Sanofi US Services Inc.$4K
- AbbVie$2K
- Bausch Health US, LLC$900
- Eli Lilly$84
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.
How this compares
$4,984,679 in reported general payments places this provider in the 95th percentile of 552 dermatology 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.
Other dermatology in Brighton
- John HarrisWorcester$17.1M
- David GreensteinBeverly$4M
- Alexandra KimballBoston$3.7M
- Robert NossaMarstons Mills$2.6M
- Gideon SmithBoston$2.6M
- Victoria KuohungQuincy$1.8M
- Ethan LernerCharlestown$1.7M
- Jeffrey DoverChestnut Hill$1.7M
- Jeffrey SobellChestnut Hill$1.6M
- Tarannum JaleelBoston$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.