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

CHRISTOPHER R CHAN

Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Family

NPI
1790037356
CMS profile
10580651
Location
LOS ANGELES, CA

General Payments · PY2021–2024

$21,882.98

  • Reported across 100 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$5,836.66

33 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

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Novo Nordisk AS $2,938.88 14
CSL Behring $2,521.13 7
PFIZER INC. $78.66 3
Genentech, Inc. $64.18 2
GENZYME CORPORATION $56.85 1
Octapharma USA, Inc. $55.67 1
Bayer HealthCare Pharmaceuticals Inc. $50.77 2
BioMarin Pharmaceutical Inc. $48.76 2
HEMA Biologics, LLC $21.76 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $5,987.58 19
PY2022 $2,961.19 15
PY2023 $7,097.55 33
PY2024 $5,836.66 33

Payment records · PY2024 (33)

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
Bayer Healthcare Pharmaceuticals Inc. $28.07 03/05/2024 Food and Beverage Undisputed 01/23/2026 1086278794 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.70 07/15/2024 Food and Beverage Undisputed 01/23/2026 1086277570 CMS
BioMarin Pharmaceutical Inc. $29.87 03/21/2024 Food and Beverage Undisputed 01/23/2026 1127060501 CMS
BioMarin Pharmaceutical Inc. $18.89 07/30/2024 Food and Beverage Undisputed 01/23/2026 1127057497 CMS
CSL Behring $20.04 01/23/2024 Food and Beverage Undisputed 01/23/2026 1134604443 CMS
CSL Behring $19.69 03/27/2024 Food and Beverage Undisputed 01/23/2026 1134604455 CMS
CSL Behring $13.15 06/11/2024 Food and Beverage Undisputed 01/23/2026 1134604527 CMS
CSL Behring $36.14 08/12/2024 Food and Beverage Undisputed 01/23/2026 1134604543 CMS
CSL Behring $1,120.00 08/22/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1134604529 CMS
CSL Behring $1,280.00 10/24/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1134604531 CMS
CSL Behring $32.11 10/30/2024 Food and Beverage Undisputed 01/23/2026 1134604545 CMS
Genentech, Inc. $31.00 04/24/2024 Food and Beverage Undisputed 01/23/2026 1133151399 CMS
Genentech, Inc. $33.18 07/31/2024 Food and Beverage Undisputed 01/23/2026 1133151403 CMS
GENZYME CORPORATION $56.85 12/08/2024 Food and Beverage Undisputed 01/23/2026 1140001675 CMS
HEMA Biologics, LLC $21.76 03/08/2024 Food and Beverage Undisputed 01/23/2026 1152821415 CMS
Novo Nordisk Inc $225.00 02/09/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100492041 CMS
Novo Nordisk Inc $225.00 03/08/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100260703 CMS
Novo Nordisk Inc $112.50 03/08/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100492043 CMS
Novo Nordisk Inc $112.50 03/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100480393 CMS
Novo Nordisk Inc $15.71 04/03/2024 Food and Beverage Undisputed 01/23/2026 1100451272 CMS
Novo Nordisk Inc $24.44 05/23/2024 Food and Beverage Undisputed 01/23/2026 1100537509 CMS
Novo Nordisk Inc $168.75 06/14/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100492037 CMS
Novo Nordisk Inc $20.19 06/15/2024 Food and Beverage Undisputed 01/23/2026 1100462548 CMS
Novo Nordisk Inc $112.50 07/09/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100299217 CMS
Novo Nordisk Inc $18.00 08/01/2024 Food and Beverage Undisputed 01/23/2026 1100599339 CMS
Novo Nordisk Inc $30.60 10/08/2024 Food and Beverage Undisputed 01/23/2026 1100505801 CMS
Novo Nordisk Inc $27.69 11/16/2024 Food and Beverage Undisputed 01/23/2026 1100451274 CMS
Novo Nordisk Inc $123.50 12/05/2024 Food and Beverage Undisputed 01/23/2026 1100274710 CMS
Novo Nordisk Inc $1,722.50 12/05/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1100553463 CMS
Octapharma USA, Inc. $55.67 11/25/2024 Food and Beverage Undisputed 01/23/2026 1142321426 CMS
PFIZER INC. $26.68 02/27/2024 Food and Beverage Undisputed 01/23/2026 1131019663 CMS
PFIZER INC. $26.69 07/11/2024 Food and Beverage Undisputed 01/23/2026 1131627675 CMS
PFIZER INC. $25.29 10/29/2024 Food and Beverage Undisputed 01/23/2026 1131627679 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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