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

BRIAN G VIKSTROM

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1285730820
CMS profile
968697
Location
VACAVILLE, CA

General Payments · PY2018–2024

$2,730.25

  • Reported across 123 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$891.32

37 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 $891.32 37

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $760.68 39
PY2019 $71.48 4
PY2021 $93.93 4
PY2022 $122.82 4
PY2023 $790.02 35
PY2024 $891.32 37

Payment records · PY2024 (37)

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

Program year 2024 20182019202120222023 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. $17.72 05/22/2024 Food and Beverage Undisputed 01/23/2026 1106284372 CMS
ABBVIE INC. $27.12 12/04/2024 Food and Beverage Undisputed 01/23/2026 1106284374 CMS
Astellas Pharma US Inc $20.58 01/20/2024 Food and Beverage Undisputed 01/23/2026 1139310288 CMS
Astellas Pharma US Inc $15.91 03/14/2024 Food and Beverage Undisputed 01/23/2026 1139266364 CMS
AstraZeneca Pharmaceuticals LP $15.66 01/04/2024 Food and Beverage Undisputed 01/23/2026 1104201287 CMS
AstraZeneca Pharmaceuticals LP $31.68 01/17/2024 Food and Beverage Undisputed 01/23/2026 1105767818 CMS
AstraZeneca Pharmaceuticals LP $30.91 06/20/2024 Food and Beverage Undisputed 01/23/2026 1104235079 CMS
AstraZeneca Pharmaceuticals LP $21.95 11/07/2024 Food and Beverage Undisputed 01/23/2026 1104753724 CMS
Celgene Corporation $24.80 05/08/2024 Food and Beverage Undisputed 01/23/2026 1101193629 CMS
Daiichi Sankyo Inc. $21.56 07/11/2024 Food and Beverage Undisputed 01/23/2026 1089495064 CMS
Eisai Inc. $20.04 01/30/2024 Food and Beverage Undisputed 01/23/2026 1110734777 CMS
Eisai Inc. $25.51 07/10/2024 Food and Beverage Undisputed 01/23/2026 1110734775 CMS
Genentech USA, Inc. $22.72 04/24/2024 Food and Beverage Undisputed 01/23/2026 1132982923 CMS
Genentech USA, Inc. $22.07 07/31/2024 Food and Beverage Undisputed 01/23/2026 1132982925 CMS
Incyte Corporation $23.82 05/15/2024 Food and Beverage Undisputed 01/23/2026 1141284747 CMS
Incyte Corporation $18.75 10/21/2024 Food and Beverage Undisputed 01/23/2026 1141178788 CMS
Ipsen Biopharmaceuticals, Inc $26.14 12/11/2024 Food and Beverage Undisputed 01/23/2026 1091992825 CMS
Janssen Biotech, Inc. $18.98 12/18/2024 Food and Beverage Undisputed 01/23/2026 1078350008 CMS
Lilly USA, LLC $29.73 02/27/2024 Food and Beverage Undisputed 01/23/2026 1136075331 CMS
Merck Sharp & Dohme LLC $27.46 01/16/2024 Food and Beverage Undisputed 01/23/2026 1141608717 CMS
Merck Sharp & Dohme LLC $27.09 07/17/2024 Food and Beverage Undisputed 01/23/2026 1141917627 CMS
Merck Sharp & Dohme LLC $34.49 08/14/2024 Food and Beverage Undisputed 01/23/2026 1141609113 CMS
Merck Sharp & Dohme LLC $25.34 08/21/2024 Food and Beverage Undisputed 01/23/2026 1141609109 CMS
Merck Sharp & Dohme LLC $33.54 10/21/2024 Food and Beverage Undisputed 01/23/2026 1141608719 CMS
Merck Sharp & Dohme LLC $24.60 10/25/2024 Food and Beverage Undisputed 01/23/2026 1141609111 CMS
Merck Sharp & Dohme LLC $27.46 11/20/2024 Food and Beverage Undisputed 01/23/2026 1141840934 CMS
Novartis Pharmaceuticals Corporation $22.46 02/28/2024 Food and Beverage Undisputed 01/23/2026 1087377964 CMS
Novartis Pharmaceuticals Corporation $25.03 04/12/2024 Food and Beverage Undisputed 01/23/2026 1087377958 CMS
Novartis Pharmaceuticals Corporation $29.73 10/09/2024 Food and Beverage Undisputed 01/23/2026 1087377976 CMS
Novartis Pharmaceuticals Corporation $13.36 12/04/2024 Food and Beverage Undisputed 01/23/2026 1087377982 CMS
PFIZER INC. $29.89 06/03/2024 Food and Beverage Undisputed 01/23/2026 1131452771 CMS
PFIZER INC. $20.05 09/09/2024 Food and Beverage Undisputed 01/23/2026 1132021561 CMS
SERVIER PHARMACEUTICALS LLC $22.04 05/01/2024 Food and Beverage Undisputed 01/23/2026 1147258504 CMS
SERVIER PHARMACEUTICALS LLC $20.09 06/12/2024 Food and Beverage Undisputed 01/23/2026 1147258506 CMS
SUN PHARMACEUTICAL INDUSTRIES INC. $24.71 08/07/2024 Food and Beverage Undisputed 01/23/2026 1152131570 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.69 10/16/2024 Food and Beverage Undisputed 01/23/2026 1137692750 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.64 11/13/2024 Food and Beverage Undisputed 01/23/2026 1144969554 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, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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