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

DONALD J MAHON

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI
1255335659
CMS profile
193309
Location
ORANGE, CA

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

$2,060.17

96 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
Food and Beverage $2,060.17 96

By paying entity

PY2023 · entire year · sorted by reported total

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

96 matching records · $2,060.17 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 96 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 96.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
SCPHARMACEUTICALS INC. $21.7212/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995507259 CMS
Novartis Pharmaceuticals Corporation $1.2612/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915971 CMS
Novartis Pharmaceuticals Corporation $1.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915973 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.7212/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996860787 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $19.7712/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026984048607 CMS
Novartis Pharmaceuticals Corporation $17.7212/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915969 CMS
E.R. Squibb & Sons, L.L.C. $19.4612/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015978407 CMS
Amgen Inc. $22.9212/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261019895727 CMS
AstraZeneca Pharmaceuticals LP $17.8512/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016021459 CMS
Kiniksa Pharmaceuticals, Ltd. $21.3411/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058961293 CMS
Kestra Medical Technology Services, Inc. $16.3311/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026976369529 CMS
Merck Sharp & Dohme LLC $25.3511/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048458991 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $18.9411/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026984048603 CMS
Amgen Inc. $24.7911/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261019895725 CMS
E.R. Squibb & Sons, L.L.C. $12.5211/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015978375 CMS
PFIZER INC. $22.5311/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049140323 CMS
Novartis Pharmaceuticals Corporation $24.3610/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915967 CMS
iRhythm Technologies, Inc. $48.0210/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261059040927 CMS
SCPHARMACEUTICALS INC. $23.7710/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995499007 CMS
PFIZER INC. $25.8810/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050676219 CMS
Janssen Pharmaceuticals, Inc $23.7510/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026987769589 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.0110/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996860789 CMS
Alnylam Pharmaceuticals Inc. $20.0010/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006161081 CMS
Novartis Pharmaceuticals Corporation $8.1209/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915965 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $24.1409/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026984048611 CMS
Novartis Pharmaceuticals Corporation $16.9809/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915959 CMS
Amgen Inc. $19.2409/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261019895723 CMS
Abbott Laboratories $22.3109/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261018062167 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $16.9709/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996860793 CMS
Amgen Inc. $8.4009/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261019895721 CMS
CARDIVA MEDICAL, INC. $14.3409/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261039481099 CMS
Kestra Medical Technology Services, Inc. $15.0408/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026976369531 CMS
Novartis Pharmaceuticals Corporation $16.0808/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915957 CMS
United Therapeutics Corporation $110.1908/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050967707 CMS
Novartis Pharmaceuticals Corporation $14.1308/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915963 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.5908/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996860795 CMS
E.R. Squibb & Sons, L.L.C. $15.8408/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015978297 CMS
SCPHARMACEUTICALS INC. $22.1808/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995489925 CMS
Impulse Dynamics (USA) Inc. $25.5307/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261022359303 CMS
Amgen Inc. $24.7607/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261019895719 CMS
Abbott Laboratories $22.2107/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261018058219 CMS
Abbott Laboratories $22.2107/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261018058503 CMS
Alnylam Pharmaceuticals Inc. $18.9207/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006160961 CMS
Novartis Pharmaceuticals Corporation $18.9407/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915961 CMS
Janssen Pharmaceuticals, Inc $14.0307/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026987769594 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $29.5406/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026984048619 CMS
Alnylam Pharmaceuticals Inc. $22.7106/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006160913 CMS
Novartis Pharmaceuticals Corporation $20.8806/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026992915955 CMS
Impulse Dynamics (USA) Inc. $23.2106/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261022359299 CMS
E.R. Squibb & Sons, L.L.C. $17.7706/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261015978251 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $4,075.73 215
PY2020 $771.50 47
PY2021 $1,901.87 115
PY2022 $3,461.43 121
PY2023 $2,060.17 96
PY2024 $3,043.29 116
PY2025 $3,946.53 113

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.

Cite this record.

Plain
DONALD J MAHON, NPI 1255335659. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1255335659.
APA 7
IndustryPayments. (2026). DONALD J MAHON, NPI 1255335659 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1255335659
Bluebook
DONALD J MAHON, NPI 1255335659, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1255335659.

Source: Centers for Medicare & Medicaid Services, Open Payments.