MARGARET BLAIR MARSHALL
Allopathic & Osteopathic Physicians|Thoracic Surgery (Cardiothoracic Vascular Surgery) BOSTON, MA NPI 1295723724
Browse related groups: Allopathic & Osteopathic Physicians|Thoracic Surgery (Cardiothoracic Vascular Surgery) MA INTUITIVE SURGICAL, INC. All categories
General Payments — all program years on this page
$120,017.09
- Category: General Payments
- Program years: PY2018–2024
- Record count: 133
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $8,573.50 across 24 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Education | $2,750.00 | 1 |
| Travel and Lodging | $2,252.37 | 6 |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $2,000.00 | 1 |
| Food and Beverage | $1,556.14 | 15 |
| Gift | $14.99 | 1 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| INTUITIVE SURGICAL, INC. | $7,964.56 | 18 |
| Medtronic, Inc. | $315.40 | 2 |
| Medical Device Business Services, Inc. | $149.54 | 1 |
| Pulmonx Corporation | $78.31 | 1 |
| Ethicon US, LLC | $36.32 | 1 |
| ATRICURE, INC. | $29.37 | 1 |
By program year
Records — PY2024 (24)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.