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

SYLVIA LOU CHANG

Allopathic & Osteopathic Physicians Ophthalmology

NPI
1053843458
CMS profile
9912460
Location
RANCHO CUCAMONGA, CA

General Payments · PY2021–2024

$2,561.46

  • Reported across 44 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$843.64

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 $843.64 21

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $101.96 1
PY2022 $1,077.74 13
PY2023 $538.12 9
PY2024 $843.64 21

Payment records · PY2024 (21)

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
Alcon Vision LLC $121.42 05/29/2024 Food and Beverage Undisputed 01/23/2026 1110694041 CMS
Alcon Vision LLC $16.35 06/05/2024 Food and Beverage Undisputed 01/23/2026 1110694029 CMS
Alcon Vision LLC $141.19 06/13/2024 Food and Beverage Undisputed 01/23/2026 1110694043 CMS
Alcon Vision LLC $35.04 07/18/2024 Food and Beverage Undisputed 01/23/2026 1110694039 CMS
Alcon Vision LLC $32.18 08/16/2024 Food and Beverage Undisputed 01/23/2026 1110694035 CMS
Alcon Vision LLC $11.24 10/18/2024 Food and Beverage Undisputed 01/23/2026 1110694027 CMS
Alcon Vision LLC $20.81 10/24/2024 Food and Beverage Undisputed 01/23/2026 1110694031 CMS
Alcon Vision LLC $26.58 10/25/2024 Food and Beverage Undisputed 01/23/2026 1110694033 CMS
Alcon Vision LLC $34.12 11/04/2024 Food and Beverage Undisputed 01/23/2026 1110694037 CMS
Amgen Inc. $14.15 05/29/2024 Food and Beverage Undisputed 01/23/2026 1115491500 CMS
Amgen Inc. $23.00 11/27/2024 Food and Beverage Undisputed 01/23/2026 1115491507 CMS
Oyster Point Pharma, Inc. $29.70 02/27/2024 Food and Beverage Undisputed 01/23/2026 1147424223 CMS
Oyster Point Pharma, Inc. $23.20 03/25/2024 Food and Beverage Undisputed 01/23/2026 1147425671 CMS
Sight Sciences, Inc. $19.84 02/12/2024 Food and Beverage Undisputed 01/23/2026 1151931267 CMS
Sight Sciences, Inc. $129.69 03/18/2024 Food and Beverage Undisputed 01/23/2026 1151931275 CMS
Sight Sciences, Inc. $21.38 05/23/2024 Food and Beverage Undisputed 01/23/2026 1151931269 CMS
Sight Sciences, Inc. $21.39 06/03/2024 Food and Beverage Undisputed 01/23/2026 1151931271 CMS
Sight Sciences, Inc. $31.24 07/09/2024 Food and Beverage Undisputed 01/23/2026 1151931273 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $25.96 07/22/2024 Food and Beverage Undisputed 01/23/2026 1152206562 CMS
Tarsus Pharmaceuticals, Inc. $30.62 06/18/2024 Food and Beverage Undisputed 01/23/2026 1139087826 CMS
Tarsus Pharmaceuticals, Inc. $34.54 11/19/2024 Food and Beverage Undisputed 01/23/2026 1139087828 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

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