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

ALONSO B CHAN

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI
1831525286
CMS profile
10463653
Location
CHULA VISTA, CA

General Payments · PY2021–2024

$2,366.21

  • Reported across 110 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$421.30

19 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 $421.30 19

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $515.04 27
PY2022 $841.38 38
PY2023 $588.49 26
PY2024 $421.30 19

Payment records · PY2024 (19)

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

Program year 2024 202120222023 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
AstraZeneca Pharmaceuticals LP $15.10 05/29/2024 Food and Beverage Undisputed 01/23/2026 1105512719 CMS
AstraZeneca Pharmaceuticals LP $16.30 08/08/2024 Food and Beverage Undisputed 01/23/2026 1105399629 CMS
AstraZeneca Pharmaceuticals LP $13.63 10/16/2024 Food and Beverage Undisputed 01/23/2026 1105832105 CMS
Baxter Healthcare $17.32 07/26/2024 Food and Beverage Undisputed 01/23/2026 1118297306 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $25.75 10/30/2024 Food and Beverage Undisputed 01/23/2026 1118173771 CMS
Exact Sciences Corporation $22.60 01/10/2024 Food and Beverage Undisputed 01/23/2026 1114427410 CMS
Exact Sciences Corporation $22.88 06/05/2024 Food and Beverage Undisputed 01/23/2026 1114427415 CMS
Exact Sciences Corporation $34.57 09/24/2024 Food and Beverage Undisputed 01/23/2026 1114427418 CMS
Exeltis, USA Inc. $15.69 04/26/2024 Food and Beverage Undisputed 01/23/2026 1150010212 CMS
Hologic Sales and Service, LLC $25.51 06/18/2024 Food and Beverage Undisputed 01/23/2026 1084909924 CMS
Hologic Sales and Service, LLC $20.20 10/02/2024 Food and Beverage Undisputed 01/23/2026 1084909994 CMS
Lilly USA, LLC $20.78 04/10/2024 Food and Beverage Undisputed 01/23/2026 1135516666 CMS
Lilly USA, LLC $28.35 06/26/2024 Food and Beverage Undisputed 01/23/2026 1135516668 CMS
Lilly USA, LLC $25.80 09/26/2024 Food and Beverage Undisputed 01/23/2026 1135502410 CMS
PFIZER INC. $26.78 11/06/2024 Food and Beverage Undisputed 01/23/2026 1132093396 CMS
Phadia US Inc. $20.11 02/02/2024 Food and Beverage Undisputed 01/23/2026 1067575190 CMS
Philips North America LLC $19.39 08/13/2024 Food and Beverage Undisputed 01/23/2026 1146890734 CMS
SANOFI-AVENTIS U.S. LLC $23.98 08/23/2024 Food and Beverage Undisputed 01/23/2026 1139878343 CMS
SANOFI-AVENTIS U.S. LLC $26.56 09/13/2024 Food and Beverage Undisputed 01/23/2026 1139878355 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
2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.