Peter Chai, MD
Emergency Medicine · Worcester, MANPI 1316267305
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $4,325 of the $6,242 with a category attached, or 69.3%. Pfizer accounts for 99.3% of it on its own, with 1 other manufacturer making up the rest. 2024 is the largest year on record at $4,325, more than ten times the $44 reported in 2019. Among emergency medicine 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 6 payments — averaging $1040.35 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$6K
- Gilead$44
Across 4 payments — averaging $29,997 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.
- Gilead$120K
What the payments were for
- Speaking & faculty fees$4,32569%
- Travel & lodging$1,66227%
- Food & beverage$2554%
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.
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.
- OXBRYTA$6,198
How this compares
$6,242 in reported general payments places this provider in the 95th percentile of 1,429 emergency medicine 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 emergency medicine in Worcester
- Martin ReznekWorcester$85K
- William TollefsenWorcester$10K
- Gregory VolturoWorcester$5K
- Christopher CreanWorcester$2K
- Sushama ScaleraSalem$4M
- Christopher GilliganBoston$1M
- Nathan ShapiroBoston$311K
- Joshua GoldsteinBoston$234K
- Adaira LandryBoston$211K
- Elissa PerkinsBoston$205K
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.