Physician profile

John M Sloan

Hematology (Internal Medicine) · Boston, MA

NPI 1659345320

$256,514.23

in general payments reported to CMS, 2019-2025

23 companies · $1,886 in 2025

The $1,886 reported for 2025 was more than what a typical Hematology (Internal Medicine) provider received nationally (typical 2025 total: $1,177).

Payments by year

General payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Consulting Fee$42,028.87
Travel and Lodging$2,748.72
Food and Beverage$2,087.15

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Stemline Therapeutics INC. $181,970.10 2019-2025 Orserdu
Adc Therapeutics America, INC. $13,326.02 2024-2025
Emd Serono, INC. $10,700.00 2019-2020
Kite Pharma, INC. $8,784.54 2020-2022
Acrotech Biopharma INC. $8,571.37 2023 Beleodaq
Servier Pharmaceuticals LLC $7,192.30 2023
Seagen INC. $5,452.75 2021-2023 Adcetris
Astrazeneca Pharmaceuticals Lp $5,107.75 2019-2021
Pharmacosmos Therapeutics INC. $4,152.16 2021
Bioverativ Therapeutics INC. $3,637.08 2019
Invivyd INC $2,625.00 2024 Pemgarda
Novartis Pharmaceuticals Corporation $2,362.50 2024
Janssen Biotech, INC. $1,345.34 2025 Tecvayli, Darzalex, Carvykti
Kyowa Kirin, INC. $374.34 2024-2025 Poteligeo
Genzyme Corporation $275.25 2022-2023
Show all 22 companies
CompanyGeneral paymentsYearsTop products
Abbvie INC. $125.83 2023-2024 Venclexta
Amgen INC. $122.15 2021
Epizyme, INC. $120.83 2022
Pfizer INC. $101.56 2022
Daiichi Sankyo INC. $93.94 2025
Rigel Pharmaceuticals, INC. $52.87 2021
E.R. Squibb & Sons, L.L.C. $20.55 2022

1 company reported research payments only; those appear in the research section below.

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

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Payment summary

John M Sloan

$256,514.23

in general payments reported 2019-2025

Years
2019-2025
Top company
Stemline Therapeutics INC.
Context
The $1,886 reported for 2025 was more than what a typical Hematology (Internal Medicine) provider received nationally (typical 2025 total: $1,177).

https://glasscript.com/doctor/255881/john-m-sloan

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.