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

ISAAC YANG

Allopathic & Osteopathic Physicians Neurological Surgery

NPI
1669599197
CMS profile
120431
Location
SAN FRANCISCO, CA

General Payments · PY2018–2024

$88,680.65

  • Reported across 132 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$36,380.17

28 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
Education $33,840.00 1
Food and Beverage $1,276.63 19
Travel and Lodging $1,263.54 8

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
BAXTER HEALTHCARE $34,199.78 9
Orthofix Medical, Inc. $1,227.26 7
Omniscient Neurotechnology America Ltd $328.80 2
NICO Corporation $280.46 1
Ethicon US, LLC $108.63 3
Medtronic, Inc. $95.20 1
Stryker Corporation $76.20 3
Aesculap, Inc. $47.50 1
LeMaitre Vascular, Inc. $16.34 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $23,147.88 22
PY2019 $4,354.18 28
PY2020 $19,014.60 10
PY2021 $58.94 2
PY2022 $1,170.90 13
PY2023 $4,553.98 29
PY2024 $36,380.17 28

Payment records · PY2024 (28)

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
Aesculap, Inc. $47.50 10/21/2024 Food and Beverage Undisputed 01/23/2026 1154288820 CMS
Baxter Healthcare $3.50 09/26/2024 Food and Beverage Undisputed 01/23/2026 1118295796 CMS
Baxter Healthcare $46.34 09/26/2024 Food and Beverage Undisputed 01/23/2026 1118295798 CMS
Baxter Healthcare $33.46 10/14/2024 Food and Beverage Undisputed 01/23/2026 1118295802 CMS
Baxter Healthcare $44.97 10/20/2024 Food and Beverage Undisputed 01/23/2026 1118295800 CMS
Baxter Healthcare $33,840.00 10/23/2024 Education Undisputed 01/23/2026 1113700095 CMS
Baxter Healthcare $65.00 10/23/2024 Travel and Lodging Undisputed 01/23/2026 1116741590 CMS
Baxter Healthcare $5.99 10/23/2024 Travel and Lodging Undisputed 01/23/2026 1116741592 CMS
Baxter Healthcare $12.60 10/23/2024 Travel and Lodging Undisputed 01/23/2026 1116741594 CMS
Baxter Healthcare $147.92 10/23/2024 Food and Beverage Undisputed 01/23/2026 1118295794 CMS
Ethicon US, LLC $25.30 01/25/2024 Food and Beverage Undisputed 01/23/2026 1077625664 CMS
Ethicon US, LLC $34.97 02/08/2024 Food and Beverage Undisputed 01/23/2026 1077625722 CMS
Ethicon US, LLC $48.36 03/21/2024 Food and Beverage Undisputed 01/23/2026 1077625646 CMS
LeMaitre Vascular, Inc. $16.34 03/28/2024 Food and Beverage Undisputed 01/23/2026 1138049945 CMS
Medtronic, Inc. $95.20 05/04/2024 Food and Beverage Undisputed 01/23/2026 1119425353 CMS
Nico Corporation $280.46 08/02/2024 Food and Beverage Undisputed 01/23/2026 1147100531 CMS
Omniscient Neurotechnology America Ltd $42.76 08/22/2024 Food and Beverage Undisputed 01/23/2026 1154745099 CMS
Omniscient Neurotechnology America Ltd $286.04 09/30/2024 Food and Beverage Undisputed 01/23/2026 1154745098 CMS
Orthofix Medical, Inc. $369.51 08/06/2024 Travel and Lodging Undisputed 01/23/2026 1127599534 CMS
Orthofix Medical, Inc. $259.00 08/16/2024 Travel and Lodging Undisputed 01/23/2026 1127599554 CMS
Orthofix Medical, Inc. $172.06 08/17/2024 Travel and Lodging Undisputed 01/23/2026 1127599498 CMS
Orthofix Medical, Inc. $30.27 08/17/2024 Food and Beverage Undisputed 01/23/2026 1127599548 CMS
Orthofix Medical, Inc. $17.04 08/18/2024 Food and Beverage Undisputed 01/23/2026 1127599536 CMS
Orthofix Medical, Inc. $172.06 08/19/2024 Travel and Lodging Undisputed 01/23/2026 1127599530 CMS
Orthofix Medical, Inc. $207.32 08/22/2024 Travel and Lodging Undisputed 01/23/2026 1127599532 CMS
Stryker Corporation $25.40 09/29/2024 Food and Beverage Undisputed 01/23/2026 1120021109 CMS
Stryker Corporation $25.40 09/29/2024 Food and Beverage Undisputed 01/23/2026 1120021111 CMS
Stryker Corporation $25.40 09/29/2024 Food and Beverage Undisputed 01/23/2026 1120021113 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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