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

STEWART W MASON

Allopathic & Osteopathic Physicians Obstetrics & Gynecology

NPI
1871519835
CMS profile
129752
Location
FRESNO, 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

$3,439.04

57 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 $1,720.33 50
Education $1,090.95 2
Travel and Lodging $604.92 4
Gift $22.84 1

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

57 matching records · $3,439.04 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 57 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 57.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
SHIELD THERAPEUTICS INC $18.5512/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261153993407 CMS
Shield Therapeutics Inc $18.5512/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045860999 CMS
CooperSurgical, Inc. $14.6211/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051517237 CMS
Agile Therapeutics, Inc. $21.9911/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051460757 CMS
Sumitomo Pharma America, Inc. $16.5811/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261030849389 CMS
Evofem Biosciences, Inc. $12.9710/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026976109875 CMS
Astellas Pharma US Inc $90.9510/25/2023 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034618407 CMS
MAYNE PHARMA COMMERCIAL LLC $5.5610/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060825161 CMS
Shield Therapeutics Inc $16.0310/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045835579 CMS
Intuitive Surgical, Inc. $28.0010/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055411273 CMS
Intuitive Surgical, Inc. $258.4810/06/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055521263 CMS
Intuitive Surgical, Inc. $1,000.0010/06/2023 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055907011 CMS
CooperSurgical, Inc. $21.3110/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051517233 CMS
Intuitive Surgical, Inc. $6.0009/28/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055436867 CMS
Astellas Pharma US Inc $19.4409/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034528777 CMS
Dexcom, Inc. $9.3509/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610285 CMS
Sumitomo Pharma America, Inc. $15.8109/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261030849393 CMS
Intuitive Surgical, Inc. $63.8809/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055704755 CMS
OptumHealth Care Solutions, LLC $27.4609/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058627067 CMS
PFIZER INC. $17.8809/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050668039 CMS
Dexcom, Inc. $8.9308/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610277 CMS
CooperSurgical, Inc. $23.0508/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051517209 CMS
ABBVIE INC. $15.3208/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026997856043 CMS
Intuitive Surgical, Inc. $491.2808/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055510667 CMS
Intuitive Surgical, Inc. $22.8408/19/2023 Gift No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055895045 CMS
MAYNE PHARMA COMMERCIAL LLC $13.5508/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060825157 CMS
MAYNE PHARMA COMMERCIAL LLC $2.6708/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060825159 CMS
Intuitive Surgical, Inc. $19.0008/03/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055548081 CMS
Intuitive Surgical, Inc. $321.4408/03/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055794191 CMS
Hologic Sales and Service, LLC $15.6207/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261024805873 CMS
Organon LLC $13.5507/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261046910779 CMS
Intuitive Surgical, Inc. $24.4207/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055575961 CMS
ABBVIE INC. $14.3307/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026997856041 CMS
Bayer Healthcare Pharmaceuticals Inc. $30.3107/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261000775713 CMS
Shield Therapeutics Inc $21.8906/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045779969 CMS
ABBVIE INC. $22.3306/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026997856039 CMS
Dexcom, Inc. $132.7006/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610269 CMS
Astellas Pharma US Inc $18.5606/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261034150685 CMS
Minerva Surgical, Inc $21.7605/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026966512405 CMS
Avanos Medical $29.3404/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261057690315 CMS
MAYNE PHARMA COMMERCIAL LLC $5.4104/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060825155 CMS
Dexcom, Inc. $12.0004/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610245 CMS
Shield Therapeutics Inc $21.1804/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261045746831 CMS
Daiichi Sankyo Inc. $28.6004/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261006350489 CMS
Dexcom, Inc. $13.8004/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610253 CMS
Baxter Healthcare $18.2404/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026996985643 CMS
Dexcom, Inc. $13.2903/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261054610261 CMS
Organon LLC $18.0003/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261046910771 CMS
ABBVIE INC. $17.5803/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026997856037 CMS
Intuitive Surgical, Inc. $195.6302/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055924199 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $630.97 28
PY2020 $485.96 30
PY2021 $635.64 40
PY2022 $919.73 50
PY2023 $3,439.04 57
PY2024 $2,111.94 32
PY2025 $8,556.61 24

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
STEWART W MASON, NPI 1871519835. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1871519835.
APA 7
IndustryPayments. (2026). STEWART W MASON, NPI 1871519835 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1871519835
Bluebook
STEWART W MASON, NPI 1871519835, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1871519835.

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