JOHN M SLOAN
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology BOSTON, MA NPI 1659345320
Browse related groups: Allopathic & Osteopathic Physicians|Internal Medicine|Hematology MA ADC Therapeutics America, Inc. All categories
General Payments — all program years on this page
$262,458.31
- Category: General Payments
- Program years: PY2018–2024
- Record count: 122
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $18,395.46 across 16 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 |
|---|---|---|
| Consulting Fee | $16,187.50 | 3 |
| Travel and Lodging | $1,314.08 | 3 |
| Food and Beverage | $893.88 | 10 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| ADC Therapeutics America, Inc. | $13,220.86 | 12 |
| Invivyd Inc | $2,625.00 | 1 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $2,362.50 | 1 |
| ABBVIE INC. | $110.47 | 1 |
| Kyowa Kirin, Inc. | $76.63 | 1 |
By program year
Records — PY2024 (16)
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
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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.