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 CALLOW

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1457644338
CMS profile
201928
Location
WEST CHESTER, OH

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 · PY2023 · Entire year

$8,525.70

41 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

PY2023 · entire year · sorted by reported total

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
UCB, Inc. $6,483.02 15
Catalyst Pharmaceuticals, Inc. $1,409.74 3
Neurelis, Inc. $221.54 7
SK Life Science, Inc. $209.90 6
Eisai Inc. $55.71 3
JAZZ PHARMACEUTICALS INC. $48.14 2
Biogen, Inc. $29.45 1
Lilly USA, LLC $20.49 1
LivaNova USA, Inc. $16.97 1
Sumitomo Pharma America, Inc. $15.91 1
Aprecia Pharmaceuticals, LLC $14.83 1

Page 1 of 1; records 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MARK CALLOW

NPI 1457644338 · CMS profile ID 201928

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

WEST CHESTER, OH

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, PY2023; 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 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1457644338?year=2023&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

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

Plain
MARK CALLOW, NPI 1457644338, CMS profile ID 201928. General Payments, PY2023; 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 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1457644338?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). MARK CALLOW, NPI 1457644338, CMS profile ID 201928. General Payments, PY2023; 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 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1457644338?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
MARK CALLOW, NPI 1457644338, CMS profile ID 201928, IndustryPayments, General Payments, PY2023; 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 1–41 of 41 matching records. This page contains 41 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1457644338?year=2023&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 · PY2023

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

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

41 matching records · $8,525.70 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 41 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 1–41 of 41.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
UCB, Inc. $900.0012/19/2023 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 1021446905 CMS
UCB, Inc. $4.0812/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446855 CMS
UCB, Inc. $900.0011/20/2023 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 1021446901 CMS
Lilly USA, LLC $20.4911/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1031796147 CMS
JAZZ PHARMACEUTICALS INC. $20.9610/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1058424045 CMS
Catalyst Pharmaceuticals, Inc. $25.6510/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048224705 CMS
UCB, Inc. $10.4009/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446873 CMS
UCB, Inc. $19.0609/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446885 CMS
SK Life Science, Inc. $83.8109/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054641249 CMS
Neurelis, Inc. $17.4609/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914889 CMS
Catalyst Pharmaceuticals, Inc. $1,350.0009/05/2023 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048232137 CMS
UCB, Inc. $10.3408/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446869 CMS
UCB, Inc. $22.2008/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446889 CMS
Neurelis, Inc. $19.5208/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914887 CMS
SK Life Science, Inc. $24.7308/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054640917 CMS
Catalyst Pharmaceuticals, Inc. $34.0908/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048224703 CMS
JAZZ PHARMACEUTICALS INC. $27.1807/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1058407103 CMS
Neurelis, Inc. $19.3706/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914885 CMS
UCB, Inc. $7.8606/06/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446859 CMS
UCB, Inc. $2,160.0006/06/2023 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 1021446913 CMS
LivaNova USA, Inc. $16.9705/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1042937377 CMS
UCB, Inc. $125.0005/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446895 CMS
Neurelis, Inc. $24.2605/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914883 CMS
SK Life Science, Inc. $25.9805/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054640799 CMS
SK Life Science, Inc. $30.2204/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054640719 CMS
UCB, Inc. $13.8504/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446877 CMS
Eisai Inc. $20.1904/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023321423 CMS
Neurelis, Inc. $19.3204/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914881 CMS
SK Life Science, Inc. $22.5103/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054640619 CMS
Neurelis, Inc. $101.1703/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914879 CMS
Neurelis, Inc. $20.4402/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050914877 CMS
Eisai Inc. $20.1902/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023321421 CMS
UCB, Inc. $9.1702/14/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446865 CMS
UCB, Inc. $2,160.0002/14/2023 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 1021446909 CMS
Aprecia Pharmaceuticals, LLC $14.8302/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1052844545 CMS
Sumitomo Pharma America, Inc. $15.9102/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1030989429 CMS
UCB, Inc. $125.0002/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446892 CMS
SK Life Science, Inc. $22.6501/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054640569 CMS
Biogen, Inc. $29.4501/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1012254791 CMS
Eisai Inc. $15.3301/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023321419 CMS
UCB, Inc. $16.0601/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021446881 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $11,945.06 125
PY2020 $857.94 71
PY2021 $814.02 44
PY2022 $5,622.32 54
PY2023 $8,525.70 41
PY2024 $4,653.89 33
PY2025 $3,129.77 52

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.