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

NATALIYA MAR

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1922240191
CMS profile
4219562
Location
ORANGE, CA

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

$48,957.68

43 records · 0 disputed

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
Merck Sharp & Dohme Corporation $23,885.51 16
EISAI INC. $15,464.33 19
Astellas Pharma Global Development $4,725.00 1
EMD Serono, Inc. $2,375.00 1
Janssen Biotech, Inc. $1,803.75 1
PFIZER INC. $529.09 4
Exelixis Inc. $175.00 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $841.53 4
PY2020 $15,189.56 20
PY2021 $7,124.75 8
PY2022 $21,463.24 35
PY2023 $36,984.79 43
PY2024 $29,091.55 40
PY2025 $48,957.68 43

Payment records · PY2025 (43)

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
Astellas Pharma Global Development $4,725.00 12/31/2025 Consulting Fee No dispute reported 06/30/2026 1234123672 CMS
Eisai Inc. $45.22 12/18/2025 Food and Beverage No dispute reported 06/30/2026 1244501932 CMS
Eisai Inc. $2,910.00 11/25/2025 Consulting Fee No dispute reported 06/30/2026 1244501940 CMS
Eisai Inc. $51.23 11/25/2025 Travel and Lodging No dispute reported 06/30/2026 1244501942 CMS
Eisai Inc. $29.45 10/20/2025 Food and Beverage No dispute reported 06/30/2026 1244501936 CMS
Eisai Inc. $84.67 10/20/2025 Food and Beverage No dispute reported 06/30/2026 1244501938 CMS
PFIZER INC. $84.76 10/18/2025 Food and Beverage No dispute reported 06/30/2026 1231087867 CMS
Eisai Inc. $721.46 07/13/2025 Travel and Lodging No dispute reported 06/30/2026 1244501934 CMS
Eisai Inc. $122.13 07/10/2025 Food and Beverage No dispute reported 06/30/2026 1244501918 CMS
Eisai Inc. $785.00 07/10/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501920 CMS
Eisai Inc. $1,962.50 07/10/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501922 CMS
Eisai Inc. $1,570.00 06/12/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501930 CMS
Eisai Inc. $970.00 06/04/2025 Consulting Fee No dispute reported 06/30/2026 1244501916 CMS
Merck Sharp & Dohme LLC $75.00 06/04/2025 Travel and Lodging No dispute reported 06/30/2026 1237995214 CMS
PFIZER INC. $150.00 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1230563945 CMS
Merck Sharp & Dohme LLC $118.90 06/01/2025 Food and Beverage No dispute reported 06/30/2026 1238246893 CMS
Eisai Inc. $20.47 05/31/2025 Food and Beverage No dispute reported 06/30/2026 1244501906 CMS
Exelixis Inc. $175.00 05/31/2025 Food and Beverage No dispute reported 06/30/2026 1218800307 CMS
Merck Sharp & Dohme LLC $5,760.00 05/30/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported 06/30/2026 1238001888 CMS
PFIZER INC. $102.55 05/30/2025 Food and Beverage No dispute reported 06/30/2026 1230563209 CMS
Merck Sharp & Dohme LLC $111.74 05/22/2025 Food and Beverage No dispute reported 06/30/2026 1238059879 CMS
Merck Sharp & Dohme LLC $150.00 05/21/2025 Travel and Lodging No dispute reported 06/30/2026 1238000062 CMS
Merck Sharp & Dohme LLC $5,760.00 05/21/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported 06/30/2026 1238001890 CMS
Eisai Inc. $1,962.50 04/29/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501924 CMS
Eisai Inc. $121.86 04/29/2025 Food and Beverage No dispute reported 06/30/2026 1244501926 CMS
Eisai Inc. $785.00 04/29/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501928 CMS
Merck Sharp & Dohme LLC $232.96 04/28/2025 Travel and Lodging No dispute reported 06/30/2026 1238009350 CMS
Merck Sharp & Dohme LLC $290.28 04/28/2025 Travel and Lodging No dispute reported 06/30/2026 1238031118 CMS
Merck Sharp & Dohme LLC $6.63 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1238118802 CMS
Eisai Inc. $2,355.00 04/02/2025 Consulting Fee No dispute reported 06/30/2026 1244501914 CMS
Eisai Inc. $785.00 03/18/2025 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported 06/30/2026 1244501908 CMS
Merck Sharp & Dohme LLC $150.00 03/12/2025 Travel and Lodging No dispute reported 06/30/2026 1238001002 CMS
Merck Sharp & Dohme LLC $5,760.00 03/12/2025 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported 06/30/2026 1238034352 CMS
Merck Sharp & Dohme LLC $3,050.00 03/03/2025 Consulting Fee No dispute reported 06/30/2026 1237994920 CMS
Merck Sharp & Dohme LLC $150.00 03/03/2025 Travel and Lodging No dispute reported 06/30/2026 1238004568 CMS
Janssen Biotech, Inc. $1,803.75 02/28/2025 Consulting Fee No dispute reported 06/30/2026 1174729045 CMS
Merck Sharp & Dohme LLC $1,171.17 02/22/2025 Travel and Lodging No dispute reported 06/30/2026 1238004156 CMS
Merck Sharp & Dohme LLC $183.83 02/22/2025 Travel and Lodging No dispute reported 06/30/2026 1238037930 CMS
Eisai Inc. $125.00 02/15/2025 Food and Beverage No dispute reported 06/30/2026 1244501910 CMS
Eisai Inc. $57.84 02/15/2025 Food and Beverage No dispute reported 06/30/2026 1244501912 CMS
PFIZER INC. $191.78 02/14/2025 Food and Beverage No dispute reported 06/30/2026 1230520678 CMS
Merck Sharp & Dohme LLC $915.00 01/13/2025 Consulting Fee No dispute reported 06/30/2026 1238038720 CMS
EMD Serono, Inc. $2,375.00 01/03/2025 Consulting Fee No dispute reported 06/30/2026 1236871673 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
NATALIYA MAR, NPI 1922240191. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1922240191.
APA 7
IndustryPayments. (2026). NATALIYA MAR, NPI 1922240191 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1922240191
Bluebook
NATALIYA MAR, NPI 1922240191, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1922240191.

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