XIAO C WAN

Allopathic & Osteopathic Physicians|Allergy & Immunology MENLO PARK, CA NPI 1295099042

General Payments — all program years on this page

$2,866.84

  • Category: General Payments
  • Program years: PY2018–2024
  • Record count: 69
  • As of (CMS publication): 2026-01-23

Latest program year (PY2024): $306.92 across 6 records · disputed records: 0

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

How this figure is 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

Latest program year (PY2024) · sorted by reported total.

Nature of paymentAmountRecords
Food and Beverage $306.926

By paying entity

Latest program year (PY2024) · sorted by reported total.

By program year

Program yearAmountRecords
2018 $1,782.8134
2019 $210.545
2020 $374.7512
2021 $102.086
2022 $45.993
2023 $43.753
2024 $306.926

Records — PY2024 (6)

Record IDPaying entityAmountDate Nature of paymentDispute statusPublishedSource
1080717337 ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $47.84 01/11/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1080717341 ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $74.70 03/17/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1104590576 AstraZeneca Pharmaceuticals LP $124.99 04/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1137694302 Takeda Pharmaceuticals U.S.A., Inc. $24.95 04/03/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1139861152 GENZYME CORPORATION $16.47 05/28/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1139861184 GENZYME CORPORATION $17.97 09/18/2024 Food and Beverage Undisputed 01/23/2026 View at CMS

Provenance & corrections

  • Dataset: CMS Open Payments — General Payments
  • Source: CMS Open Payments dataset (bulk file)
  • Publisher of source data: Centers for Medicare & Medicaid Services
  • 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.