IndustryPayments
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

ISAAC MATTHEW CHAMBERS

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1497168777
CMS profile
975353
Location
HAYS, KS

General Payments · PY2021–2024

$4,082.05

  • Reported across 223 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,057.31

107 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.

Related groups: Hematology & Oncology KS All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,884.01 105
Education $173.30 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Astellas Pharma US Inc $208.02 4
NOVARTIS PHARMACEUTICALS CORPORATION $203.36 10
PFIZER INC. $185.77 15
Celgene Corporation $137.27 11
Takeda Pharmaceuticals U.S.A., Inc. $111.20 5
E.R. Squibb & Sons, L.L.C. $107.79 7
TerSera Therapeutics LLC $90.13 3
Lilly USA, LLC $82.79 4
Incyte Corporation $75.64 4
Janssen Biotech, Inc. $73.75 4
ARRAY BIOPHARMA INC $69.16 5
ABBVIE INC. $67.40 3
Acerta Pharma LLC $65.58 3
GlaxoSmithKline, LLC. $55.34 3
Gilead Sciences, Inc. $53.27 3
Merck Sharp & Dohme Corporation $46.71 2
EISAI INC. $45.16 1
Novocure Inc. $35.94 2
Pharmacosmos Therapeutics Inc. $33.99 2
SOBI, INC $32.56 2
SpringWorks Therapeutics, Inc. $27.45 1
Exelixis Inc. $22.98 1
Sumitomo Pharma America, Inc. $22.90 1
TAIHO ONCOLOGY, INC. $22.57 1
Genmab U.S., Inc. $21.10 1
Apellis Pharmaceuticals, Inc. $21.00 1
Kyowa Kirin, Inc. $19.64 1
EMD Serono, Inc. $18.41 1
SERVIER PHARMACEUTICALS LLC $18.24 1
Immunocore Limited $17.75 1
AVEO Pharmaceuticals, Inc. $17.38 1
Alexion Pharmaceuticals, Inc. $16.79 1
PUMA BIOTECHNOLOGY, INC. $15.97 1
Mirati Therapeutics, Inc. $14.30 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $14.22 1
PY2022 $544.12 31
PY2023 $1,466.40 84
PY2024 $2,057.31 107

Payment records · PY2024 (107)

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
ABBVIE INC. $17.46 03/13/2024 Food and Beverage Undisputed 01/23/2026 1103436516 CMS
ABBVIE INC. $22.58 08/06/2024 Food and Beverage Undisputed 01/23/2026 1103436518 CMS
ABBVIE INC. $27.36 12/10/2024 Food and Beverage Undisputed 01/23/2026 1103436520 CMS
Alexion Pharmaceuticals, Inc. $16.79 09/19/2024 Food and Beverage Undisputed 01/23/2026 1094047270 CMS
Apellis Pharmaceuticals, Inc. $21.00 02/21/2024 Food and Beverage Undisputed 01/23/2026 1154021913 CMS
ARRAY BIOPHARMA INC $15.70 02/15/2024 Food and Beverage Undisputed 01/23/2026 1131196592 CMS
ARRAY BIOPHARMA INC $2.69 02/15/2024 Food and Beverage Undisputed 01/23/2026 1131701152 CMS
ARRAY BIOPHARMA INC $4.25 09/16/2024 Food and Beverage Undisputed 01/23/2026 1132023963 CMS
ARRAY BIOPHARMA INC $25.09 09/17/2024 Food and Beverage Undisputed 01/23/2026 1131362228 CMS
ARRAY BIOPHARMA INC $21.43 12/03/2024 Food and Beverage Undisputed 01/23/2026 1131268689 CMS
Astellas Pharma US Inc $19.73 06/04/2024 Food and Beverage Undisputed 01/23/2026 1139368865 CMS
Astellas Pharma US Inc $93.95 10/23/2024 Education Undisputed 01/23/2026 1139419561 CMS
Astellas Pharma US Inc $79.35 10/23/2024 Education Undisputed 01/23/2026 1139419899 CMS
Astellas Pharma US Inc $14.99 10/23/2024 Food and Beverage Undisputed 01/23/2026 1139436794 CMS
AstraZeneca Pharmaceuticals LP $24.92 02/20/2024 Food and Beverage Undisputed 01/23/2026 1105695832 CMS
AstraZeneca Pharmaceuticals LP $20.29 06/05/2024 Food and Beverage Undisputed 01/23/2026 1104296820 CMS
AstraZeneca Pharmaceuticals LP $20.37 10/29/2024 Food and Beverage Undisputed 01/23/2026 1105858704 CMS
Aveo Pharmaceuticals, Inc. $17.38 04/09/2024 Food and Beverage Undisputed 01/23/2026 1143478851 CMS
Celgene Corporation $7.59 01/09/2024 Food and Beverage Undisputed 01/23/2026 1101086899 CMS
Celgene Corporation $28.32 01/18/2024 Food and Beverage Undisputed 01/23/2026 1101086895 CMS
Celgene Corporation $0.59 01/18/2024 Food and Beverage Undisputed 01/23/2026 1101086897 CMS
Celgene Corporation $1.14 01/18/2024 Food and Beverage Undisputed 01/23/2026 1101086901 CMS
Celgene Corporation $14.23 02/13/2024 Food and Beverage Undisputed 01/23/2026 1101086903 CMS
Celgene Corporation $17.91 03/27/2024 Food and Beverage Undisputed 01/23/2026 1101086927 CMS
Celgene Corporation $2.38 04/11/2024 Food and Beverage Undisputed 01/23/2026 1101086933 CMS
Celgene Corporation $13.38 05/23/2024 Food and Beverage Undisputed 01/23/2026 1101086937 CMS
Celgene Corporation $20.26 06/07/2024 Food and Beverage Undisputed 01/23/2026 1101086941 CMS
Celgene Corporation $18.58 07/24/2024 Food and Beverage Undisputed 01/23/2026 1101086943 CMS
Celgene Corporation $12.89 10/22/2024 Food and Beverage Undisputed 01/23/2026 1101086953 CMS
E.R. Squibb & Sons, L.L.C. $13.33 01/11/2024 Food and Beverage Undisputed 01/23/2026 1101237057 CMS
E.R. Squibb & Sons, L.L.C. $19.83 01/17/2024 Food and Beverage Undisputed 01/23/2026 1101237059 CMS
E.R. Squibb & Sons, L.L.C. $14.11 04/11/2024 Food and Beverage Undisputed 01/23/2026 1101237071 CMS
E.R. Squibb & Sons, L.L.C. $14.30 08/13/2024 Food and Beverage Undisputed 01/23/2026 1101237149 CMS
E.R. Squibb & Sons, L.L.C. $17.26 08/22/2024 Food and Beverage Undisputed 01/23/2026 1101237151 CMS
E.R. Squibb & Sons, L.L.C. $15.61 09/24/2024 Food and Beverage Undisputed 01/23/2026 1101237167 CMS
E.R. Squibb & Sons, L.L.C. $13.35 11/07/2024 Food and Beverage Undisputed 01/23/2026 1101237175 CMS
Eisai Inc. $45.16 09/25/2024 Food and Beverage Undisputed 01/23/2026 1110749720 CMS
EMD Serono, Inc. $18.41 04/03/2024 Food and Beverage Undisputed 01/23/2026 1120228430 CMS
Exelixis Inc. $22.98 01/26/2024 Food and Beverage Undisputed 01/23/2026 1138558796 CMS
Genmab U.S., Inc. $21.10 11/13/2024 Food and Beverage Undisputed 01/23/2026 1126827318 CMS
Gilead Sciences, Inc. $17.66 01/05/2024 Food and Beverage Undisputed 01/23/2026 1133801620 CMS
Gilead Sciences, Inc. $14.36 10/04/2024 Food and Beverage Undisputed 01/23/2026 1133801622 CMS
Gilead Sciences, Inc. $21.25 11/26/2024 Food and Beverage Undisputed 01/23/2026 1133801624 CMS
GlaxoSmithKline, LLC. $15.87 01/23/2024 Food and Beverage Undisputed 01/23/2026 1116432807 CMS
GlaxoSmithKline, LLC. $21.67 03/26/2024 Food and Beverage Undisputed 01/23/2026 1116240442 CMS
GlaxoSmithKline, LLC. $17.80 10/31/2024 Food and Beverage Undisputed 01/23/2026 1116274339 CMS
Immunocore Limited $17.75 10/24/2024 Food and Beverage Undisputed 01/23/2026 1103097893 CMS
Incyte Corporation $13.52 02/02/2024 Food and Beverage Undisputed 01/23/2026 1141283345 CMS
Incyte Corporation $21.08 03/08/2024 Food and Beverage Undisputed 01/23/2026 1141284073 CMS
Incyte Corporation $19.73 05/08/2024 Food and Beverage Undisputed 01/23/2026 1141208953 CMS
Incyte Corporation $21.31 08/09/2024 Food and Beverage Undisputed 01/23/2026 1141286097 CMS
Janssen Biotech, Inc. $17.42 01/04/2024 Food and Beverage Undisputed 01/23/2026 1078636042 CMS
Janssen Biotech, Inc. $17.25 08/15/2024 Food and Beverage Undisputed 01/23/2026 1078636051 CMS
Janssen Biotech, Inc. $24.75 09/04/2024 Food and Beverage Undisputed 01/23/2026 1078635940 CMS
Janssen Biotech, Inc. $14.33 10/31/2024 Food and Beverage Undisputed 01/23/2026 1078635988 CMS
Kyowa Kirin, Inc. $19.64 10/09/2024 Food and Beverage Undisputed 01/23/2026 1127031557 CMS
Lilly USA, LLC $27.67 01/24/2024 Food and Beverage Undisputed 01/23/2026 1134986952 CMS
Lilly USA, LLC $18.83 03/06/2024 Food and Beverage Undisputed 01/23/2026 1135029572 CMS
Lilly USA, LLC $14.74 11/06/2024 Food and Beverage Undisputed 01/23/2026 1135010727 CMS
Lilly USA, LLC $21.55 12/11/2024 Food and Beverage Undisputed 01/23/2026 1135036388 CMS
Merck Sharp & Dohme LLC $21.14 08/07/2024 Food and Beverage Undisputed 01/23/2026 1141830482 CMS
Merck Sharp & Dohme LLC $25.57 11/20/2024 Food and Beverage Undisputed 01/23/2026 1141579767 CMS
Mirati Therapeutics, Inc. $14.30 10/01/2024 Food and Beverage Undisputed 01/23/2026 1117161108 CMS
Novartis Pharmaceuticals Corporation $19.66 01/10/2024 Food and Beverage Undisputed 01/23/2026 1086632201 CMS
Novartis Pharmaceuticals Corporation $23.27 01/16/2024 Food and Beverage Undisputed 01/23/2026 1086632197 CMS
Novartis Pharmaceuticals Corporation $23.96 03/05/2024 Food and Beverage Undisputed 01/23/2026 1086632199 CMS
Novartis Pharmaceuticals Corporation $24.46 04/30/2024 Food and Beverage Undisputed 01/23/2026 1086632203 CMS
Novartis Pharmaceuticals Corporation $19.17 05/02/2024 Food and Beverage Undisputed 01/23/2026 1086632205 CMS
Novartis Pharmaceuticals Corporation $1.39 05/02/2024 Food and Beverage Undisputed 01/23/2026 1086632207 CMS
Novartis Pharmaceuticals Corporation $24.79 06/26/2024 Food and Beverage Undisputed 01/23/2026 1086632209 CMS
Novartis Pharmaceuticals Corporation $24.18 09/12/2024 Food and Beverage Undisputed 01/23/2026 1086632211 CMS
Novartis Pharmaceuticals Corporation $18.66 10/16/2024 Food and Beverage Undisputed 01/23/2026 1086632213 CMS
Novartis Pharmaceuticals Corporation $23.82 12/12/2024 Food and Beverage Undisputed 01/23/2026 1086632215 CMS
Novocure Inc. $16.62 06/13/2024 Food and Beverage Undisputed 01/23/2026 1123335748 CMS
Novocure Inc. $19.32 11/21/2024 Food and Beverage Undisputed 01/23/2026 1123335750 CMS
PFIZER INC. $20.26 02/06/2024 Food and Beverage Undisputed 01/23/2026 1131287994 CMS
PFIZER INC. $16.91 03/06/2024 Food and Beverage Undisputed 01/23/2026 1131304263 CMS
PFIZER INC. $17.21 03/12/2024 Food and Beverage Undisputed 01/23/2026 1131297751 CMS
PFIZER INC. $12.27 03/20/2024 Food and Beverage Undisputed 01/23/2026 1131701155 CMS
PFIZER INC. $18.23 03/22/2024 Food and Beverage Undisputed 01/23/2026 1131284398 CMS
PFIZER INC. $4.58 04/18/2024 Food and Beverage Undisputed 01/23/2026 1131307887 CMS
PFIZER INC. $0.54 04/18/2024 Food and Beverage Undisputed 01/23/2026 1131309103 CMS
PFIZER INC. $20.43 04/18/2024 Food and Beverage Undisputed 01/23/2026 1131310738 CMS
PFIZER INC. $17.07 06/20/2024 Food and Beverage Undisputed 01/23/2026 1131701869 CMS
PFIZER INC. $8.30 07/15/2024 Food and Beverage Undisputed 01/23/2026 1131339594 CMS
PFIZER INC. $1.66 08/29/2024 Food and Beverage Undisputed 01/23/2026 1131348351 CMS
PFIZER INC. $2.39 08/29/2024 Food and Beverage Undisputed 01/23/2026 1131348359 CMS
PFIZER INC. $17.68 08/29/2024 Food and Beverage Undisputed 01/23/2026 1131349427 CMS
PFIZER INC. $8.88 11/12/2024 Food and Beverage Undisputed 01/23/2026 1131390578 CMS
PFIZER INC. $19.36 11/13/2024 Food and Beverage Undisputed 01/23/2026 1131381914 CMS
Pharmacosmos Therapeutics Inc. $17.19 02/29/2024 Food and Beverage Undisputed 01/23/2026 1154820593 CMS
Pharmacosmos Therapeutics Inc. $16.80 06/19/2024 Food and Beverage Undisputed 01/23/2026 1154820595 CMS
PUMA BIOTECHNOLOGY, INC. $15.97 09/26/2024 Food and Beverage Undisputed 01/23/2026 1113844685 CMS
SERVIER PHARMACEUTICALS LLC $18.24 04/02/2024 Food and Beverage Undisputed 01/23/2026 1147260226 CMS
SOBI, INC $17.77 08/01/2024 Food and Beverage Undisputed 01/23/2026 1141440153 CMS
SOBI, INC $14.79 11/19/2024 Food and Beverage Undisputed 01/23/2026 1141411914 CMS
SpringWorks Therapeutics, Inc. $27.45 02/21/2024 Food and Beverage Undisputed 01/23/2026 1085803414 CMS
Sumitomo Pharma America, Inc. $22.90 11/27/2024 Food and Beverage Undisputed 01/23/2026 1148836419 CMS
TAIHO ONCOLOGY, INC. $22.57 10/15/2024 Food and Beverage Undisputed 01/23/2026 1137936195 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.71 02/22/2024 Food and Beverage Undisputed 01/23/2026 1144954999 CMS
Takeda Pharmaceuticals U.S.A., Inc. $19.46 03/28/2024 Food and Beverage Undisputed 01/23/2026 1144955001 CMS
Takeda Pharmaceuticals U.S.A., Inc. $15.70 04/10/2024 Food and Beverage Undisputed 01/23/2026 1144955003 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.11 06/17/2024 Food and Beverage Undisputed 01/23/2026 1144955005 CMS
Takeda Pharmaceuticals U.S.A., Inc. $32.22 09/10/2024 Food and Beverage Undisputed 01/23/2026 1144955007 CMS
TerSera Therapeutics LLC $37.22 05/07/2024 Food and Beverage Undisputed 01/23/2026 1144715513 CMS
TerSera Therapeutics LLC $25.39 08/13/2024 Food and Beverage Undisputed 01/23/2026 1144715515 CMS
TerSera Therapeutics LLC $27.52 12/18/2024 Food and Beverage Undisputed 01/23/2026 1144715517 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

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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