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

ISAAC R MEZO

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1346415908
CMS profile
197263
Location
CHANNAHON, 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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General Payments · PY2021 · Entire year

$58,720.91

316 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

PY2021 · entire year · sorted by reported total

By paying entity

PY2021 · entire year · sorted by reported total

Paying entityAmountRecords
AbbVie Inc. $45,698.46 96
Allergan, Inc. $6,287.06 19
Biogen, Inc. $3,615.58 14
Novartis Pharmaceuticals Corporation $520.90 34
Sunovion Pharmaceuticals Inc. $287.54 17
Celgene Corporation $233.91 8
Teva Pharmaceuticals USA, Inc. $215.53 17
EMD Serono, Inc. $167.39 10
UPSHER-SMITH LABORATORIES LLC $149.17 8
Supernus Pharmaceuticals, Inc. $137.64 10
Biohaven Pharmaceuticals, Inc. $111.20 9
Lilly USA, LLC $86.98 5
UCB, Inc. $86.48 5
Acorda Therapeutics, Inc $79.58 4
Eisai Inc. $75.13 5
SK Life Science, Inc. $72.17 3
Greenwich Biosciences, Inc. $66.30 3
CATALYST PHARMACEUTICALS, INC. $62.28 3
Currax Pharmaceuticals LLC $47.77 3
Amneal Pharmaceuticals LLC $46.64 2
Genentech USA, Inc. $44.26 3
Adamas Pharmaceuticals, Inc. $42.43 3
Amgen Inc. $40.41 3
Abbott Laboratories $39.69 2
Kyowa Kirin, Inc. $38.53 2
E.R. Squibb & Sons, L.L.C. $37.95 2
Alexion Pharmaceuticals, Inc. $36.54 2
Avanir Pharmaceuticals, Inc. $35.99 2
Lundbeck LLC $34.19 2
PFIZER INC. $33.58 2
Tandem Diabetes Care, Inc. $33.44 2
Ipsen Biopharmaceuticals, Inc $30.08 1
Mallinckrodt Hospital Products Inc. $26.67 2
Neurelis, Inc. $25.73 2
ARBOR PHARMACEUTICALS, INC. $19.62 1
Medtronic, Inc. $18.46 1
Horizon Therapeutics plc $17.57 1
Boehringer Ingelheim Pharmaceuticals, Inc. $17.38 1
Insulet Corporation $17.35 1
Takeda Pharmaceuticals U.S.A., Inc. $15.90 1
LivaNova USA, Inc. $14.92 1
BOSTON SCIENTIFIC CORPORATION $14.61 1
GENZYME CORPORATION $14.39 1
Janssen Pharmaceuticals, Inc $11.84 1
Bayer HealthCare Pharmaceuticals Inc. $11.67 1

Page 2 of 7; records 51–100 of 316 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

ISAAC R MEZO

NPI 1346415908 · CMS profile ID 197263

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

CHANNAHON, 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, PY2021; 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 2 of 7; records 51–100 of 316 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1346415908?year=2021&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

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

Plain
ISAAC R MEZO, NPI 1346415908, CMS profile ID 197263. General Payments, PY2021; 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 2 of 7; records 51–100 of 316 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1346415908?year=2021&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). ISAAC R MEZO, NPI 1346415908, CMS profile ID 197263. General Payments, PY2021; 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 2 of 7; records 51–100 of 316 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1346415908?year=2021&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
ISAAC R MEZO, NPI 1346415908, CMS profile ID 197263, IndustryPayments, General Payments, PY2021; 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 2 of 7; records 51–100 of 316 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1346415908?year=2021&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

316 matching records · $58,720.91 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 316 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 51–100 of 316.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Amneal Pharmaceuticals LLC $19.3610/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829669349 CMS
AbbVie Inc. $9.1710/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670207 CMS
AbbVie Inc. $18.6810/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670213 CMS
AbbVie Inc. $1,920.0010/19/2021 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 Delay: No
Change: UNCHANGED
06/30/2026 795670219 CMS
EMD Serono, Inc. $20.6310/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 849218343 CMS
Biogen, Inc. $16.0910/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 827837983 CMS
Supernus Pharmaceuticals, Inc. $10.8110/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845082995 CMS
Insulet Corporation $17.3510/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839837017 CMS
Teva Pharmaceuticals USA, Inc. $25.2510/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839515299 CMS
AbbVie Inc. $3.2210/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670191 CMS
AbbVie Inc. $1,920.0010/14/2021 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 Delay: No
Change: UNCHANGED
06/30/2026 795670196 CMS
AbbVie Inc. $17.7510/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670201 CMS
Allergan, Inc. $17.5710/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792874725 CMS
Novartis Pharmaceuticals Corporation $1.1210/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813080735 CMS
Novartis Pharmaceuticals Corporation $17.6810/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813080743 CMS
Sunovion Pharmaceuticals Inc. $22.0710/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821599395 CMS
AbbVie Inc. $7.9510/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670167 CMS
AbbVie Inc. $2,400.0010/12/2021 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 Delay: No
Change: UNCHANGED
06/30/2026 795670173 CMS
AbbVie Inc. $28.7110/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670179 CMS
AbbVie Inc. $35.8410/12/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670185 CMS
Acorda Therapeutics, Inc $16.7110/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 792555453 CMS
UCB, Inc. $17.5010/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807461395 CMS
AbbVie Inc. $1,750.0010/08/2021 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 Delay: No
Change: UNCHANGED
06/30/2026 795670161 CMS
PFIZER INC. $18.7310/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833286131 CMS
Supernus Pharmaceuticals, Inc. $15.0710/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845082991 CMS
Novartis Pharmaceuticals Corporation $1.4810/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813080731 CMS
AbbVie Inc. $7.2110/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670155 CMS
Genentech USA, Inc. $16.1010/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835919797 CMS
EMD Serono, Inc. $15.2110/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 849218319 CMS
AbbVie Inc. $2,400.0009/30/2021 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 Delay: No
Change: UNCHANGED
06/30/2026 795670143 CMS
AbbVie Inc. $24.6209/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670149 CMS
Supernus Pharmaceuticals, Inc. $12.0209/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845082987 CMS
Lundbeck LLC $19.9609/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845923271 CMS
Novartis Pharmaceuticals Corporation $16.8309/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813080723 CMS
Novartis Pharmaceuticals Corporation $20.8209/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813080727 CMS
Teva Pharmaceuticals USA, Inc. $5.1809/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839515103 CMS
Teva Pharmaceuticals USA, Inc. $14.1609/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839515105 CMS
Biohaven Pharmaceuticals, Inc. $11.1509/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852566777 CMS
UPSHER-SMITH LABORATORIES LLC $27.5909/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834690353 CMS
AbbVie Inc. $4.9809/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 795670137 CMS
Kyowa Kirin, Inc. $19.7709/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852989275 CMS
Sunovion Pharmaceuticals Inc. $17.4409/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821740227 CMS
UCB, Inc. $18.7909/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 807402263 CMS
Greenwich Biosciences, Inc. $33.3309/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 841835805 CMS
Biohaven Pharmaceuticals, Inc. $4.7109/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852566775 CMS
PFIZER INC. $14.8509/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833282841 CMS
CATALYST PHARMACEUTICALS, INC. $23.6409/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 828333791 CMS
Teva Pharmaceuticals USA, Inc. $5.5609/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839515101 CMS
UPSHER-SMITH LABORATORIES LLC $22.1908/31/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 834702455 CMS
Celgene Corporation $15.1808/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783677575 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,442.38 244
PY2020 $30,221.38 318
PY2021 $58,720.91 316
PY2022 $22,505.09 265
PY2023 $18,293.88 184
PY2024 $19,919.49 196
PY2025 $33,780.77 176

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.