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

WAI-LAM CHAN

Allopathic & Osteopathic Physicians Family Medicine

NPI
1891791877
CMS profile
358521
Location
SAN FRANCISCO, CA

General Payments · PY2018–2024

$2,978.26

  • Reported across 154 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$495.08

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 $495.08 21

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $527.12 29
PY2019 $556.96 34
PY2020 $412.18 20
PY2021 $461.83 26
PY2022 $247.76 11
PY2023 $277.33 13
PY2024 $495.08 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
ABBVIE INC. $24.38 01/11/2024 Food and Beverage Undisputed 01/23/2026 1103438458 CMS
Amgen Inc. $27.66 10/30/2024 Food and Beverage Undisputed 01/23/2026 1117524037 CMS
AstraZeneca Pharmaceuticals LP $19.43 03/07/2024 Food and Beverage Undisputed 01/23/2026 1105561004 CMS
AstraZeneca Pharmaceuticals LP $25.64 09/12/2024 Food and Beverage Undisputed 01/23/2026 1105608367 CMS
AstraZeneca Pharmaceuticals LP $22.60 10/10/2024 Food and Beverage Undisputed 01/23/2026 1105252480 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.36 04/17/2024 Food and Beverage Undisputed 01/23/2026 1118221476 CMS
Exact Sciences Corporation $27.23 08/14/2024 Food and Beverage Undisputed 01/23/2026 1114611985 CMS
Janssen Pharmaceuticals, Inc $19.01 05/08/2024 Food and Beverage Undisputed 01/23/2026 1077940000 CMS
Lilly USA, LLC $24.42 04/24/2024 Food and Beverage Undisputed 01/23/2026 1135468037 CMS
Merck Sharp & Dohme LLC $23.61 02/07/2024 Food and Beverage Undisputed 01/23/2026 1141922928 CMS
Novartis Pharmaceuticals Corporation $26.10 06/05/2024 Food and Beverage Undisputed 01/23/2026 1086768509 CMS
Novo Nordisk Inc $21.63 02/29/2024 Food and Beverage Undisputed 01/23/2026 1097807113 CMS
Novo Nordisk Inc $16.45 03/20/2024 Food and Beverage Undisputed 01/23/2026 1097221199 CMS
Novo Nordisk Inc $15.25 05/01/2024 Food and Beverage Undisputed 01/23/2026 1097045023 CMS
Novo Nordisk Inc $19.79 07/17/2024 Food and Beverage Undisputed 01/23/2026 1096734507 CMS
Novo Nordisk Inc $20.16 08/08/2024 Food and Beverage Undisputed 01/23/2026 1097077560 CMS
PFIZER INC. $34.68 05/16/2024 Food and Beverage Undisputed 01/23/2026 1131548365 CMS
PFIZER INC. $29.88 06/13/2024 Food and Beverage Undisputed 01/23/2026 1131687158 CMS
PFIZER INC. $38.01 06/27/2024 Food and Beverage Undisputed 01/23/2026 1131791673 CMS
PFIZER INC. $14.65 08/29/2024 Food and Beverage Undisputed 01/23/2026 1131874551 CMS
PFIZER INC. $22.14 12/11/2024 Food and Beverage Undisputed 01/23/2026 1131426142 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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