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

MATTHEW Y SIOW

Allopathic & Osteopathic Physicians Orthopaedic Surgery

NPI
1467948307
CMS profile
7228700
Location
LOS ANGELES, 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 · PY2025 · Entire year

$10,111.80

68 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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,712.99 52
Travel and Lodging $3,458.29 14
Grant $2,916.67 1
Gift $23.85 1

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
Smith+Nephew, Inc. $6,936.72 42
Stryker Corporation $2,416.51 21
Shoulder Innovations, Inc. $522.47 2
DePuy Synthes Sales Inc. $139.83 1
Elevate Surgical Co $96.27 2

Page 1 of 2; records 1–50 of 68 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

MATTHEW Y SIOW

NPI 1467948307 · CMS profile ID 7228700

Allopathic & Osteopathic Physicians / Orthopaedic Surgery

LOS ANGELES, 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.

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, PY2025; 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 2; records 1–50 of 68 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1467948307?year=2025&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e

Cite these filtered records

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

Plain
MATTHEW Y SIOW, NPI 1467948307, CMS profile ID 7228700. General Payments, PY2025; 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 2; records 1–50 of 68 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1467948307?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). MATTHEW Y SIOW, NPI 1467948307, CMS profile ID 7228700. General Payments, PY2025; 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 2; records 1–50 of 68 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1467948307?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
MATTHEW Y SIOW, NPI 1467948307, CMS profile ID 7228700, IndustryPayments, General Payments, PY2025; 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 2; records 1–50 of 68 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e. https://industrypayments.org/provider/npi-1467948307?year=2025&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 · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

68 matching records · $10,111.80 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 68 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 68.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Stryker Corporation $173.1712/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919615 CMS
DePuy Synthes Sales Inc. $139.8310/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174074580 CMS
Stryker Corporation $59.9210/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919611 CMS
Stryker Corporation $169.8710/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919606 CMS
Elevate Surgical Co $74.7210/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244670763 CMS
Stryker Corporation $32.3610/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919602 CMS
Stryker Corporation $175.0009/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919598 CMS
Stryker Corporation $44.3609/23/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919594 CMS
Stryker Corporation $34.5709/20/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919586 CMS
Stryker Corporation $6.0009/20/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919590 CMS
Stryker Corporation $132.5709/19/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919582 CMS
Stryker Corporation $57.9409/18/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919574 CMS
Stryker Corporation $11.5909/18/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919578 CMS
Smith+Nephew, Inc. $130.0909/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272975 CMS
Stryker Corporation $564.6309/15/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919565 CMS
Stryker Corporation $103.0909/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919570 CMS
Elevate Surgical Co $21.5509/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244671209 CMS
Stryker Corporation $170.6309/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919561 CMS
Stryker Corporation $12.9508/04/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919556 CMS
Smith+Nephew, Inc. $48.3808/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272973 CMS
Smith+Nephew, Inc. $109.3808/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272971 CMS
Stryker Corporation $38.7807/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919549 CMS
Stryker Corporation $22.2207/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919553 CMS
Stryker Corporation $262.0307/30/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1227919544 CMS
Smith+Nephew, Inc. $6.3307/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272955 CMS
Smith+Nephew, Inc. $50.4607/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272961 CMS
Stryker Corporation $160.5507/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919540 CMS
Stryker Corporation $17.2907/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1227919536 CMS
Smith+Nephew, Inc. $33.2007/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272953 CMS
Smith+Nephew, Inc. $32.5707/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272959 CMS
Smith+Nephew, Inc. $3.3107/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272963 CMS
Smith+Nephew, Inc. $14.8907/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272965 CMS
Smith+Nephew, Inc. $6.1407/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272969 CMS
Smith+Nephew, Inc. $7.4607/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272951 CMS
Smith+Nephew, Inc. $32.5307/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272957 CMS
Smith+Nephew, Inc. $114.5907/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272967 CMS
Smith+Nephew, Inc. $93.7506/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272949 CMS
Smith+Nephew, Inc. $43.1006/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272945 CMS
Shoulder Innovations, Inc. $498.6206/21/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/2026 1249465041 CMS
Shoulder Innovations, Inc. $23.8506/21/2025 Gift No dispute reported Delay: No
Change: NEW
06/30/2026 1249465044 CMS
Smith+Nephew, Inc. $140.9306/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272943 CMS
Smith+Nephew, Inc. $74.5206/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272937 CMS
Smith+Nephew, Inc. $88.5106/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272947 CMS
Smith+Nephew, Inc. $31.4605/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272919 CMS
Smith+Nephew, Inc. $19.1405/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272939 CMS
Smith+Nephew, Inc. $114.9004/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272917 CMS
Smith+Nephew, Inc. $119.2704/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272921 CMS
Smith+Nephew, Inc. $15.0004/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272923 CMS
Smith+Nephew, Inc. $9.1204/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272927 CMS
Smith+Nephew, Inc. $10.2104/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1242272929 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $867.00 1
PY2022 $77.93 3
PY2023 $294.79 3
PY2024 $26,517.29 44
PY2025 $10,111.80 68

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, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , 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.