Siavash Saadat, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Springfield, MANPI 1033406491
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,915 of the $6,378 with a category attached, or 61.4%. 8 manufacturers reported payments, led by Atricure, Inc. at 49.5% of the total. Reporting peaked in 2019 at $2,006 and has fallen 65.8% since, to $687 in 2025.
Across 49 payments — averaging $130.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Atricure, Inc.$3K
- Edwards Lifesciences$1K
- Medtronic$1K
- AstraZeneca$417
- Artivion, Inc.$115
- Abbott$109
- plus $80 from 2 others
Across 15 payments — averaging $11,021 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.
- Genentech, Inc.$106K
- AstraZeneca$60K
What the payments were for
- Travel & lodging$3,91561%
- Food & beverage$2,46339%
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 |
|---|---|---|
| Atricure, Inc. | 11 | $3,157 |
| Edwards Lifesciences | 8 | $1,384 |
| Medtronic(2 entities) | 19 | $1,117 |
| AstraZeneca | 6 | $417 |
| Artivion, Inc. | 1 | $115 |
| Abbott | 2 | $109 |
| Genentech, Inc. | 1 | $42 |
| Abiomed | 1 | $38 |
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.
- EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX$1,900
- Edwards SAPIEN 3 Transcatheter Heart Valve$1,167
- ATRICURE SYNERGY ABLATION SYSTEM$668
- COREVALVE EVOLUT R$376
- Mosaic$349
- SYNERGY ABLATION SYSTEM$336
- ULTOMIRIS$277
- ATRICURE ATRICLIP LAA EXCLUSION$137
- ON-X AORTIC HEART VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER$115
How this compares
$6,378 in reported general payments places this provider in the 55th percentile of 171 thoracic surgery (cardiothoracic vascular surgery) providers in Massachusetts.
See all thoracic surgery (cardiothoracic vascular surgery) 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 thoracic surgery (cardiothoracic vascular surgery) in Springfield
- Daniel EngelmanSpringfield$607K
- David DeatonSpringfield$51K
- Ruchi ThanawalaSpringfield$27K
- Laki RousouSpringfield$25K
- David BullSpringfield$23K
- Elliot ServaisBurlington$689K
- Daniel RaessBoxford$429K
- Lana Schumacher BealBoston$254K
- Sidney LevitskyBoston$248K
- Robert ThurerBoston$229K
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.