Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

MARK SONNENSCHINE

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1922291939
CMS profile
359712
Location
BROOKLYN, NY

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2024 · Entire year

$1,998.81

83 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,725.50 80
Education $189.98 2
Long term medical supply or device loan $83.33 1

By paying entity

PY2024 · entire year · sorted by reported total

Payment records · PY2024

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

83 matching records · $1,998.81 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 83 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 83.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Novartis Pharmaceuticals Corporation $24.2012/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261087272715 CMS
Novartis Pharmaceuticals Corporation $23.8912/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261087272711 CMS
TAIHO ONCOLOGY, INC. $30.5912/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261137942028 CMS
Agios Pharmaceuticals, Inc. $18.2012/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261149644289 CMS
Janssen Biotech, Inc. $2.4712/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078408774 CMS
Janssen Biotech, Inc. $19.5712/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078412845 CMS
PFIZER INC. $8.3611/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131187114 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.5411/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261144968090 CMS
Novartis Pharmaceuticals Corporation $31.7311/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261087272707 CMS
Janssen Biotech, Inc. $28.9111/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078411338 CMS
Merck Sharp & Dohme LLC $22.3211/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141870415 CMS
Incyte Corporation $18.1411/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141231989 CMS
E.R. Squibb & Sons, L.L.C. $23.3811/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101226819 CMS
Bayer Healthcare Pharmaceuticals Inc. $19.9210/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261086149799 CMS
Merck Sharp & Dohme LLC $20.0610/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141704420 CMS
Daiichi Sankyo Inc. $9.1010/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485214 CMS
Daiichi Sankyo Inc. $18.0810/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485216 CMS
PFIZER INC. $19.8910/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131362958 CMS
Eisai Inc. $19.1609/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110763861 CMS
TAIHO ONCOLOGY, INC. $21.0109/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261137942756 CMS
Merck Sharp & Dohme LLC $20.7509/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141704428 CMS
Daiichi Sankyo Inc. $12.2809/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485210 CMS
Eisai Inc. $16.0709/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110763863 CMS
Stemline Therapeutics Inc. $24.1309/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261142961883 CMS
Janssen Biotech, Inc. $28.5209/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078409351 CMS
PFIZER INC. $22.7209/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131369677 CMS
Daiichi Sankyo Inc. $23.5209/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485212 CMS
Incyte Corporation $19.1108/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141188294 CMS
PFIZER INC. $20.2508/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131877572 CMS
Janssen Biotech, Inc. $24.3208/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078412380 CMS
Merck Sharp & Dohme LLC $24.4108/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141704430 CMS
Rigel Pharmaceuticals, Inc. $23.3708/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261145205476 CMS
PFIZER INC. $24.7108/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131361387 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.1107/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261144968088 CMS
E.R. Squibb & Sons, L.L.C. $18.3207/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101226801 CMS
Alexion Pharmaceuticals, Inc. $14.9807/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261093902553 CMS
Daiichi Sankyo Inc. $21.1307/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485228 CMS
Celgene Corporation $26.0607/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261101084307 CMS
Eisai Inc. $15.0007/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110763865 CMS
PFIZER INC. $21.1307/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131765500 CMS
TAIHO ONCOLOGY, INC. $22.5906/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261137936823 CMS
Janssen Biotech, Inc. $31.6406/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078409033 CMS
Novartis Pharmaceuticals Corporation $26.2606/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261087272679 CMS
PFIZER INC. $18.4106/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131699810 CMS
Merck Sharp & Dohme LLC $22.7006/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261141704424 CMS
Janssen Biotech, Inc. $26.1506/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261078411457 CMS
Daiichi Sankyo Inc. $27.4305/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261089485226 CMS
PFIZER INC. $7.9305/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261131723756 CMS
Takeda Pharmaceuticals U.S.A., Inc. $21.5405/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261144968086 CMS
Eisai Inc. $21.3205/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261110763873 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,647.79 83
PY2020 $2,002.21 59
PY2021 $2,119.35 80
PY2022 $1,698.90 72
PY2023 $2,231.60 88
PY2024 $1,998.81 83
PY2025 $1,796.30 68

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.

Cite this record.

Plain
MARK SONNENSCHINE, NPI 1922291939. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1922291939.
APA 7
IndustryPayments. (2026). MARK SONNENSCHINE, NPI 1922291939 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1922291939
Bluebook
MARK SONNENSCHINE, NPI 1922291939, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1922291939.

Source: Centers for Medicare & Medicaid Services, Open Payments.