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 NATHAN BELKIN

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1023499498
CMS profile
1318531
Location
CHICAGO, IL

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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Filter and download payment records

General Payments · PY2019 · Entire year

$1,333.49

38 records · 0 disputed

Summary and payment records

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

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.
  • 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,133.49 35
Education $183.42 1
Travel and Lodging $16.58 2

By paying entity

PY2019 · entire year · sorted by reported total

Page 1 of 1; records 1–38 of 38 matching records. This page contains 38 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MARK NATHAN BELKIN

NPI 1023499498 · CMS profile ID 1318531

Allopathic & Osteopathic Physicians / Internal Medicine

CHICAGO, IL

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.

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.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 1; records 1–38 of 38 matching records. This page contains 38 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1023499498?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
MARK NATHAN BELKIN, NPI 1023499498, CMS profile ID 1318531. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–38 of 38 matching records. This page contains 38 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1023499498?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). MARK NATHAN BELKIN, NPI 1023499498, CMS profile ID 1318531. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–38 of 38 matching records. This page contains 38 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1023499498?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
MARK NATHAN BELKIN, NPI 1023499498, CMS profile ID 1318531, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 1; records 1–38 of 38 matching records. This page contains 38 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1023499498?year=2019&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

38 matching records · $1,333.49 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 38 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 1–38 of 38.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Abbott Laboratories $94.8512/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803475693 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $44.4512/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 625117279 CMS
Amgen Inc. $24.7212/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663272273 CMS
Lantheus Medical Imaging, Inc. $15.5711/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703436353 CMS
Abbott Laboratories $19.1511/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664564743 CMS
Abbott Laboratories $3.3211/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664565417 CMS
Amgen Inc. $17.9311/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663272269 CMS
Janssen Pharmaceuticals, Inc $17.5710/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658314373 CMS
Amgen Inc. $19.4210/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663272267 CMS
Abbott Laboratories $183.4210/04/2019 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664561067 CMS
PFIZER INC. $17.3810/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673785699 CMS
PFIZER INC. $18.0310/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673780849 CMS
Abbott Laboratories $18.8109/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664512529 CMS
Janssen Pharmaceuticals, Inc $15.0208/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658314343 CMS
Abbott Laboratories $21.5908/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664532991 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $16.6808/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 625117283 CMS
Regeneron Healthcare Solutions, Inc. $14.6208/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673340287 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $17.3508/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 625117281 CMS
Otsuka America Pharmaceutical, Inc. $24.4708/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 687352591 CMS
Janssen Pharmaceuticals, Inc $16.1307/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658314323 CMS
Lantheus Medical Imaging, Inc. $13.2406/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703435795 CMS
Regeneron Healthcare Solutions, Inc. $12.8306/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673340283 CMS
Lantheus Medical Imaging, Inc. $13.6405/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703435773 CMS
Regeneron Healthcare Solutions, Inc. $15.0204/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673340277 CMS
Medtronic Vascular, Inc. $137.4204/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682942615 CMS
Abbott Laboratories $137.5804/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679361873 CMS
Abbott Laboratories $8.5904/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679365069 CMS
Abbott Laboratories $7.9904/04/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 696941849 CMS
Abbott Laboratories $19.6603/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664600729 CMS
Regeneron Healthcare Solutions, Inc. $13.0703/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673340273 CMS
Boston Scientific Corporation $23.7102/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662929071 CMS
ABIOMED $27.7702/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676713235 CMS
Abbott Laboratories $76.6502/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664518585 CMS
Regeneron Healthcare Solutions, Inc. $14.0002/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673340267 CMS
Abbott Laboratories $52.8901/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664516701 CMS
ABIOMED $15.5101/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676713189 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $102.0101/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 625117277 CMS
Lantheus Medical Imaging, Inc. $21.4301/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703435751 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,333.49 38
PY2020 $459.92 18
PY2021 $12,349.20 27
PY2022 $1,110.72 23
PY2023 $1,722.41 33
PY2024 $1,407.50 19
PY2025 $9,536.75 26

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

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