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.

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Filter and download payment records

General Payments · PY2024 · Entire year

$18,448.93

121 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

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $14,032.50 10
Food and Beverage $3,887.76 108
Travel and Lodging $460.67 2
Education $68.00 1

By paying entity

PY2024 · entire year · sorted by reported total

Page 1 of 3; records 1–50 of 121 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

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, PY2024; 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 3; records 1–50 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1295116218?year=2024&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff

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, PY2024; 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 3; records 1–50 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1295116218?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
APA 7
IndustryPayments. (2026). GREGORY MCMAHON, NPI 1295116218, CMS profile ID 8358308. General Payments, PY2024; 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 3; records 1–50 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1295116218?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
Bluebook
GREGORY MCMAHON, NPI 1295116218, CMS profile ID 8358308, IndustryPayments, General Payments, PY2024; 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 3; records 1–50 of 121 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff. https://industrypayments.org/provider/npi-1295116218?year=2024&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 · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

121 matching records · $18,448.93 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 121 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 1–50 of 121.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
ABBVIE INC. $24.8912/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105008487 CMS
Janssen Biotech, Inc. $5.6512/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078608077 CMS
Telix Pharmaceuticals $2.4912/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1081984152 CMS
Janssen Biotech, Inc. $926.5012/17/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607574 CMS
Janssen Biotech, Inc. $25.8912/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078608145 CMS
Janssen Biotech, Inc. $6.2712/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607864 CMS
Janssen Biotech, Inc. $26.7612/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607360 CMS
Janssen Biotech, Inc. $545.0012/05/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607787 CMS
Janssen Biotech, Inc. $52.9412/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607591 CMS
Janssen Biotech, Inc. $71.2612/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607791 CMS
Janssen Biotech, Inc. $126.0012/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078608129 CMS
Novartis Pharmaceuticals Corporation $23.3811/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087130246 CMS
Janssen Biotech, Inc. $33.1111/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607640 CMS
Astellas Pharma US Inc $56.7011/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139444412 CMS
Janssen Biotech, Inc. $58.8311/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607650 CMS
Janssen Biotech, Inc. $33.7511/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607910 CMS
Janssen Scientific Affairs, LLC $17.5311/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078858232 CMS
Dendreon Pharmaceuticals LLC $30.4911/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1149320174 CMS
Janssen Biotech, Inc. $817.5011/13/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607727 CMS
PFIZER INC. $17.6411/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131233295 CMS
Tempus AI, Inc $17.9011/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150169688 CMS
Bayer Healthcare Pharmaceuticals Inc. $872.0011/04/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086258100 CMS
Astellas Pharma US Inc $13.8911/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139444472 CMS
Janssen Biotech, Inc. $4.5010/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607922 CMS
Sumitomo Pharma America, Inc. $14.3210/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1148889057 CMS
Dendreon Pharmaceuticals LLC $146.5910/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1149320172 CMS
Janssen Biotech, Inc. $1,090.0010/29/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607686 CMS
BIOPROTECT MEDICAL, INC. $22.0910/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1154296365 CMS
Janssen Biotech, Inc. $81.7110/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607405 CMS
Janssen Scientific Affairs, LLC $42.6010/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078858220 CMS
Bayer Healthcare Pharmaceuticals Inc. $23.5710/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086174480 CMS
Janssen Biotech, Inc. $7.8210/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607515 CMS
Janssen Biotech, Inc. $5.7110/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607557 CMS
Janssen Biotech, Inc. $32.5510/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607768 CMS
Novartis Pharmaceuticals Corporation $26.0410/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087130242 CMS
Janssen Biotech, Inc. $5.5010/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078608191 CMS
Janssen Biotech, Inc. $22.7509/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607430 CMS
Janssen Scientific Affairs, LLC $143.0109/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078858222 CMS
Janssen Biotech, Inc. $20.6609/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607917 CMS
Telix Pharmaceuticals $22.3609/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1081984150 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.0109/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086141773 CMS
Astellas Pharma US Inc $16.8008/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139398609 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.9408/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086223296 CMS
Calyxo, Inc. $16.2508/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1099418547 CMS
Janssen Biotech, Inc. $19.2108/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607756 CMS
Janssen Biotech, Inc. $4.3508/15/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607674 CMS
Janssen Scientific Affairs, LLC $817.5008/13/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078858226 CMS
Janssen Biotech, Inc. $32.8908/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078607663 CMS
Teleflex LLC $3.3808/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1142069229 CMS
PFIZER INC. $14.8408/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131898175 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.