Steven Mach, MD
Pain Medicine · Boston, MANPI 1437641628
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $2,982 of the $4,814 with a category attached, or 61.9%. Medtronic accounts for 68.4% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2023 at $2,283 and has fallen 93.6% since, to $146 in 2025.
Across 58 payments — averaging $83.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$3K
- Abbott$416
- Saluda Medical Americas, Inc.$351
- Fisher & Paykel Healthcare Inc$146
- Edwards Lifesciences$131
- Curonix LLC$127
- plus $350 from 5 others
What the payments were for
- Travel & lodging$1,83238%
- Food & beverage$2,98262%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Medtronic | 37 | $3,293 |
| Abbott | 4 | $416 |
| Saluda Medical Americas, Inc. | 6 | $351 |
| Fisher & Paykel Healthcare Inc | 2 | $146 |
| Edwards Lifesciences | 1 | $131 |
| Curonix LLC | 1 | $127 |
| Vertos Medical, Inc. | 2 | $123 |
| SPR Therapeutics, Inc | 2 | $120 |
| Teleflex LLC | 1 | $75 |
| Nalu Medical, Inc. | 1 | $18 |
| Biodelivery Sciences International, 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.
How this compares
$4,814 in reported general payments places this provider in the 70th percentile of 137 pain 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 pain medicine in Boston
- Thomas SimopoulosBoston$181K
- Arti OriBoston$62K
- Christine SangBoston$56K
- Eduard VaynbergBoston$32K
- David HaoBoston$16K
- Erika YihBoston$8K
- Samuel AngBoston$7K
- Kevin VuBoston$6K
- Brenda LeeBoston$6K
- Rupeng LiBoston$4K
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.