MICHAEL J LANDZBERG
Allopathic & Osteopathic Physicians|Internal Medicine|Adult Congenital Heart Disease BOSTON, MA NPI 1124019864
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Adult Congenital Heart Disease MA Actelion Pharmaceuticals US, Inc. All categories
General Payments — all program years on this page
$6,111.46
- Category: General Payments
- Program years: PY2018
- Record count: 8
- As of (CMS publication): 2026-01-23
Latest program year (PY2018): $6,111.46 across 8 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 (PY2018) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Consulting Fee | $5,000.00 | 2 |
| Travel and Lodging | $886.46 | 2 |
| Food and Beverage | $225.00 | 4 |
By paying entity
Latest program year (PY2018) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Actelion Pharmaceuticals US, Inc. | $6,111.46 | 8 |
By program year
| Program year | Amount | Records |
|---|---|---|
| 2018 | $6,111.46 | 8 |
Records — PY2018 (8)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 551317477 | Actelion Pharmaceuticals US, Inc. | $2,500.00 | 10/19/2018 | Consulting Fee | Undisputed | 01/23/2026 | View at CMS |
| 551317479 | Actelion Pharmaceuticals US, Inc. | $125.00 | 10/19/2018 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 551317781 | Actelion Pharmaceuticals US, Inc. | $2,500.00 | 10/20/2018 | Consulting Fee | Undisputed | 01/23/2026 | View at CMS |
| 551317783 | Actelion Pharmaceuticals US, Inc. | $511.45 | 10/20/2018 | Travel and Lodging | Undisputed | 01/23/2026 | View at CMS |
| 551317785 | Actelion Pharmaceuticals US, Inc. | $35.00 | 10/20/2018 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 551317787 | Actelion Pharmaceuticals US, Inc. | $15.00 | 10/20/2018 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 551317789 | Actelion Pharmaceuticals US, Inc. | $50.00 | 10/20/2018 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 551317791 | Actelion Pharmaceuticals US, Inc. | $375.01 | 10/20/2018 | Travel and Lodging | Undisputed | 01/23/2026 | View at CMS |
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_PGYR2018_P01232026_01102026.csv
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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.