Leo Tsai
Diagnostic Radiology · Boston, MANPI 1720250228
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,500 of the $2,364 with a category attached, or 63.5%. Guerbet LLC accounts for 71.6% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2022 at $1,693 and has fallen 92.2% since, to $131 in 2025.
Across 8 payments — averaging $295.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Guerbet LLC$2K
- United Imaging Healthcare North America LLC$539
- GE HealthCare$131
Across 30 payments — averaging $2112.88 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.
- Guerbet LLC$45K
- Pfizer$18K
- GE HealthCare$491
Across 43 payments — averaging $3072.14 each. An ownership or investment interest held by the physician or an immediate family member.
- Agile Devices, Inc.$132K
What the payments were for
- Consulting fees$1,50063%
- Travel & lodging$35615%
- Food & beverage$50821%
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 |
|---|---|---|
| Guerbet LLC | 2 | $1,693 |
| United Imaging Healthcare North America LLC | 5 | $539 |
| GE HealthCare | 1 | $131 |
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.
- ELUCIREM$1,693
- uMR Jupiter$483
How this compares
$2,364 in reported general payments places this provider in the 85th percentile of 1,206 diagnostic radiology 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 diagnostic radiology in Boston
- Gregg MillerBoston$1.8M
- Stephan AndersonBoston$1.6M
- Ashraf ThabetBoston$1.4M
- Mukesh HarisinghaniBoston$1.4M
- Andrew KompelBoston$1.3M
- Elaine IuanowBoston$590K
- Subba DigumarthyBoston$561K
- Michael SteignerBoston$504K
- Jennifer UyedaBoston$412K
- Victorine MuseBoston$364K
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.