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

GREGORY MCMAHON

Allopathic & Osteopathic Physicians Urology

NPI
1295116218
CMS profile
8358308
Location
WYNNEWOOD, PA

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2023 · Entire year

$3,915.48

45 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

Nature of paymentAmountRecords
Consulting Fee $2,725.00 2
Food and Beverage $1,190.48 43

By paying entity

PY2023 · entire year · sorted by reported total

Page 1 of 1; records 1–45 of 45 matching records. This page contains 45 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

GREGORY MCMAHON

NPI 1295116218 · CMS profile ID 8358308

Allopathic & Osteopathic Physicians / Urology

WYNNEWOOD, PA

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 1–45 of 45 matching records. This page contains 45 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1295116218?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
GREGORY MCMAHON, NPI 1295116218, CMS profile ID 8358308. 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 1–45 of 45 matching records. This page contains 45 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1295116218?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). GREGORY MCMAHON, NPI 1295116218, CMS profile ID 8358308. 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 1–45 of 45 matching records. This page contains 45 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1295116218?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
GREGORY MCMAHON, NPI 1295116218, CMS profile ID 8358308, 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 1–45 of 45 matching records. This page contains 45 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1295116218?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

45 matching records · $3,915.48 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 45 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 1–45 of 45.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Janssen Biotech, Inc. $1,090.0012/22/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340895 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.3112/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000901133 CMS
Janssen Biotech, Inc. $1,635.0012/04/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340885 CMS
PFIZER INC. $14.8111/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050023417 CMS
Janssen Biotech, Inc. $26.3611/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340949 CMS
Bayer Healthcare Pharmaceuticals Inc. $16.3911/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000850263 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.4510/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000886003 CMS
Janssen Biotech, Inc. $21.7010/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340905 CMS
Boston Scientific Corporation $14.6510/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021949047 CMS
Janssen Scientific Affairs, LLC $144.6210/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988438099 CMS
Tolmar, Inc. $17.8010/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1056951323 CMS
Axonics, Inc. $13.0009/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1051771435 CMS
Bayer Healthcare Pharmaceuticals Inc. $7.2009/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000833551 CMS
PFIZER INC. $15.5609/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049803611 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.6509/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000881125 CMS
Janssen Biotech, Inc. $20.6809/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340925 CMS
Telix Pharmaceuticals $19.7509/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1005799827 CMS
Astellas Pharma US Inc $18.9309/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1034469803 CMS
Janssen Biotech, Inc. $21.7308/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340915 CMS
Bayer Healthcare Pharmaceuticals Inc. $31.0908/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000915763 CMS
Janssen Biotech, Inc. $24.6708/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340941 CMS
Janssen Biotech, Inc. $13.7208/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340933 CMS
Dendreon Pharmaceuticals LLC $15.6907/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060288155 CMS
UroGen Pharma, Inc. $24.8507/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1038590801 CMS
Bayer Healthcare Pharmaceuticals Inc. $24.7407/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000898755 CMS
Janssen Biotech, Inc. $143.3607/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340959 CMS
Verity Pharmaceuticals Inc. $14.0406/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1019426983 CMS
AngioDynamics, Inc. $20.5306/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1025289779 CMS
Janssen Biotech, Inc. $4.3506/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340975 CMS
180 Medical, Inc. $17.7506/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1057528577 CMS
Janssen Biotech, Inc. $21.9006/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340985 CMS
UroGen Pharma, Inc. $21.6806/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1038614233 CMS
Janssen Biotech, Inc. $121.6005/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340965 CMS
Verity Pharmaceuticals Inc. $19.1605/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1019426975 CMS
Dendreon Pharmaceuticals LLC $24.1705/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060288153 CMS
ACCORD HEALTHCARE, INC. $23.1705/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1052306247 CMS
Janssen Biotech, Inc. $4.3505/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988341005 CMS
Tolmar, Inc. $26.3505/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1056941199 CMS
Janssen Biotech, Inc. $19.4004/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988341015 CMS
Janssen Biotech, Inc. $21.3903/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988340995 CMS
PFIZER INC. $17.7002/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049546749 CMS
Dendreon Pharmaceuticals LLC $21.8702/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060288151 CMS
Boston Scientific Corporation $27.2302/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1022348627 CMS
Myriad Genetic Laboratories, Inc. $22.8902/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1059786827 CMS
Janssen Biotech, Inc. $20.2401/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 988341023 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2020 $37.38 2
PY2021 $440.11 5
PY2022 $475.53 16
PY2023 $3,915.48 45
PY2024 $18,448.93 121
PY2025 $55,884.31 180

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
2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · 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.