Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MARK MATTHEWS

Allopathic & Osteopathic Physicians Family Medicine

NPI
1760436455
CMS profile
1238677
Location
PORTERVILLE, CA

General Payments · PY2018–2024

$1,609.17

  • Reported across 124 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$320.93

21 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $320.93 21

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Alkermes, Inc. $281.19 19
Neurelis, Inc. $22.95 1
PFIZER INC. $16.79 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $125.36 14
PY2019 $50.69 2
PY2020 $18.46 1
PY2021 $288.04 21
PY2022 $466.85 38
PY2023 $338.84 27
PY2024 $320.93 21

Payment records · PY2024 (21)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Alkermes, Inc. $3.26 01/16/2024 Food and Beverage Undisputed 01/23/2026 1120549591 CMS
Alkermes, Inc. $17.95 01/16/2024 Food and Beverage Undisputed 01/23/2026 1120549593 CMS
Alkermes, Inc. $2.63 02/28/2024 Food and Beverage Undisputed 01/23/2026 1120549595 CMS
Alkermes, Inc. $20.88 02/28/2024 Food and Beverage Undisputed 01/23/2026 1120549597 CMS
Alkermes, Inc. $10.11 03/14/2024 Food and Beverage Undisputed 01/23/2026 1120549599 CMS
Alkermes, Inc. $3.76 03/21/2024 Food and Beverage Undisputed 01/23/2026 1120549601 CMS
Alkermes, Inc. $24.44 03/21/2024 Food and Beverage Undisputed 01/23/2026 1120549603 CMS
Alkermes, Inc. $1.65 04/16/2024 Food and Beverage Undisputed 01/23/2026 1120549605 CMS
Alkermes, Inc. $26.25 05/31/2024 Food and Beverage Undisputed 01/23/2026 1120549607 CMS
Alkermes, Inc. $17.78 06/22/2024 Food and Beverage Undisputed 01/23/2026 1120549609 CMS
Alkermes, Inc. $22.43 07/09/2024 Food and Beverage Undisputed 01/23/2026 1120549611 CMS
Alkermes, Inc. $3.33 09/13/2024 Food and Beverage Undisputed 01/23/2026 1120549613 CMS
Alkermes, Inc. $15.38 09/13/2024 Food and Beverage Undisputed 01/23/2026 1120549615 CMS
Alkermes, Inc. $22.50 10/16/2024 Food and Beverage Undisputed 01/23/2026 1120549617 CMS
Alkermes, Inc. $31.27 11/06/2024 Food and Beverage Undisputed 01/23/2026 1120549619 CMS
Alkermes, Inc. $2.97 11/12/2024 Food and Beverage Undisputed 01/23/2026 1120549621 CMS
Alkermes, Inc. $24.26 11/13/2024 Food and Beverage Undisputed 01/23/2026 1120549623 CMS
Alkermes, Inc. $2.89 12/05/2024 Food and Beverage Undisputed 01/23/2026 1120549625 CMS
Alkermes, Inc. $27.45 12/06/2024 Food and Beverage Undisputed 01/23/2026 1120549627 CMS
Neurelis, Inc. $22.95 05/23/2024 Food and Beverage Undisputed 01/23/2026 1145647748 CMS
PFIZER INC. $16.79 05/22/2024 Food and Beverage Undisputed 01/23/2026 1131555528 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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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.