Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

KOK HOE CHAN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1548755135
CMS profile
11434797
Location
CHARLESTON, WV

General Payments · PY2022–2025

$1,718.38

  • Reported across 50 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$769.29

28 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $749.29 27
Education $20.00 1

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2022 $52.40 1
PY2023 $190.43 4
PY2024 $706.26 17
PY2025 $769.29 28

Payment records · PY2025 (28)

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

Program year 2025 202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ARRAY BIOPHARMA INC $25.63 05/08/2025 Food and Beverage Undisputed 06/30/2026 1230031556 CMS
Astellas Pharma US Inc $28.10 02/14/2025 Food and Beverage Undisputed 06/30/2026 1238738008 CMS
Astellas Pharma US Inc $33.21 05/06/2025 Food and Beverage Undisputed 06/30/2026 1238795589 CMS
Astellas Pharma US Inc $21.69 05/23/2025 Food and Beverage Undisputed 06/30/2026 1238793239 CMS
Astellas Pharma US Inc $27.10 10/30/2025 Food and Beverage Undisputed 06/30/2026 1238579623 CMS
Astellas Pharma US Inc $27.80 11/21/2025 Food and Beverage Undisputed 06/30/2026 1238577207 CMS
AstraZeneca Pharmaceuticals LP $30.71 05/30/2025 Food and Beverage Undisputed 06/30/2026 1206962219 CMS
Aveo Pharmaceuticals, Inc. $18.16 03/11/2025 Food and Beverage Undisputed 06/30/2026 1199903280 CMS
Aveo Pharmaceuticals, Inc. $20.00 05/06/2025 Education Undisputed 06/30/2026 1199903282 CMS
BeiGene USA, Inc. $20.53 02/21/2025 Food and Beverage Undisputed 06/30/2026 1202882886 CMS
Celgene Corporation $16.74 01/15/2025 Food and Beverage Undisputed 06/30/2026 1184760698 CMS
Celgene Corporation $21.03 04/11/2025 Food and Beverage Undisputed 06/30/2026 1184760724 CMS
E.R. Squibb & Sons, L.L.C. $17.97 01/10/2025 Food and Beverage Undisputed 06/30/2026 1184760728 CMS
E.R. Squibb & Sons, L.L.C. $22.58 03/27/2025 Food and Beverage Undisputed 06/30/2026 1184760716 CMS
E.R. Squibb & Sons, L.L.C. $15.39 12/17/2025 Food and Beverage Undisputed 06/30/2026 1184760808 CMS
Genentech USA, Inc. $22.54 11/05/2025 Food and Beverage Undisputed 06/30/2026 1211531969 CMS
Incyte Corporation $16.10 07/15/2025 Food and Beverage Undisputed 06/30/2026 1225968491 CMS
Novartis Pharmaceuticals Corporation $27.33 05/08/2025 Food and Beverage Undisputed 06/30/2026 1200205116 CMS
Novartis Pharmaceuticals Corporation $19.74 05/14/2025 Food and Beverage Undisputed 06/30/2026 1200205122 CMS
Novartis Pharmaceuticals Corporation $19.40 07/24/2025 Food and Beverage Undisputed 06/30/2026 1200205134 CMS
PFIZER INC. $20.24 11/07/2025 Food and Beverage Undisputed 06/30/2026 1229870636 CMS
PFIZER INC. $24.13 11/19/2025 Food and Beverage Undisputed 06/30/2026 1229630982 CMS
Syndax Pharmaceuticals, Inc. $24.07 03/14/2025 Food and Beverage Undisputed 06/30/2026 1238990328 CMS
Tempus AI, Inc $53.33 03/12/2025 Food and Beverage Undisputed 06/30/2026 1250344673 CMS
Tempus AI, Inc $19.74 03/26/2025 Food and Beverage Undisputed 06/30/2026 1250344675 CMS
Tempus AI, Inc $12.67 04/30/2025 Food and Beverage Undisputed 06/30/2026 1250344678 CMS
Tempus AI, Inc $98.61 05/14/2025 Food and Beverage Undisputed 06/30/2026 1250344680 CMS
Tempus AI, Inc $64.75 07/02/2025 Food and Beverage Undisputed 06/30/2026 1250344682 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.