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

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. 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 ↗

Covered recipient · General Payments record

JENNIFER D MARSHAK

Allopathic & Osteopathic Physicians Obstetrics & Gynecology

NPI
1750365912
CMS profile
125148
Location
PORT JEFFERSON, 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.

General Payments · PY2019–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$659.08

22 records · 0 disputed

“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.
  • Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $659.08 22

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $332.02 7
PY2020 $41.76 2
PY2021 $43.93 2
PY2022 $158.48 3
PY2023 $445.19 6
PY2024 $483.17 14
PY2025 $659.08 22

Payment records · PY2025 (22)

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

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Bayer Healthcare Pharmaceuticals Inc. $14.76 12/30/2025 Food and Beverage No dispute reported 06/30/2026 1225640433 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.16 12/10/2025 Food and Beverage No dispute reported 06/30/2026 1225640431 CMS
Amgen Inc. $13.70 12/04/2025 Food and Beverage No dispute reported 06/30/2026 1227205072 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.78 12/04/2025 Food and Beverage No dispute reported 06/30/2026 1225640429 CMS
Sumitomo Pharma America, Inc. $118.37 09/17/2025 Food and Beverage No dispute reported 06/30/2026 1176688073 CMS
PFIZER INC. $28.42 09/05/2025 Food and Beverage No dispute reported 06/30/2026 1230161557 CMS
Amgen Inc. $16.14 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1228558958 CMS
Astellas Pharma US Inc $23.43 07/11/2025 Food and Beverage No dispute reported 06/30/2026 1238804072 CMS
THD America, Inc. $28.42 04/08/2025 Food and Beverage No dispute reported 06/30/2026 1253215253 CMS
Daiichi Sankyo Inc. $28.69 03/31/2025 Food and Beverage No dispute reported 06/30/2026 1197061595 CMS
Biogen, Inc. $100.00 03/25/2025 Food and Beverage No dispute reported 06/30/2026 1208414456 CMS
ABBVIE INC. $18.92 02/27/2025 Food and Beverage No dispute reported 06/30/2026 1203023136 CMS
Daiichi Sankyo Inc. $25.66 02/06/2025 Food and Beverage No dispute reported 06/30/2026 1197044579 CMS
Daiichi Sankyo Inc. $26.04 01/30/2025 Food and Beverage No dispute reported 06/30/2026 1197048539 CMS
Amgen Inc. $21.47 01/29/2025 Food and Beverage No dispute reported 06/30/2026 1228558960 CMS
MAYNE PHARMA COMMERCIAL LLC $105.01 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1254641662 CMS
MAYNE PHARMA COMMERCIAL LLC $5.72 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1254324169 CMS
MAYNE PHARMA COMMERCIAL LLC $1.17 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1254324181 CMS
MAYNE PHARMA COMMERCIAL LLC $0.27 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1254324183 CMS
MAYNE PHARMA COMMERCIAL LLC $5.36 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1254324199 CMS
SHIELD THERAPEUTICS INC $16.13 01/15/2025 Food and Beverage No dispute reported 06/30/2026 1249602642 CMS
SHIELD THERAPEUTICS INC $14.46 01/13/2025 Food and Beverage No dispute reported 06/30/2026 1249602362 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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
JENNIFER D MARSHAK, NPI 1750365912. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1750365912.
APA 7
IndustryPayments. (2026). JENNIFER D MARSHAK, NPI 1750365912 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1750365912
Bluebook
JENNIFER D MARSHAK, NPI 1750365912, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1750365912.

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