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 BYERRUM SEAMAN

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI
1306030242
CMS profile
713353
Location
RIVERSIDE, CA

General Payments · PY2018–2024

$6,852.84

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

Latest program year · PY2024

$655.90

32 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 $655.90 32

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $83.99 4
PY2019 $2,052.13 43
PY2020 $885.43 23
PY2021 $848.37 15
PY2022 $1,358.68 60
PY2023 $968.34 46
PY2024 $655.90 32

Payment records · PY2024 (32)

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
Abbott Laboratories $23.46 07/09/2024 Food and Beverage Undisputed 01/23/2026 1124971186 CMS
Abbott Laboratories $20.19 08/14/2024 Food and Beverage Undisputed 01/23/2026 1124971212 CMS
Abbott Laboratories $19.58 09/05/2024 Food and Beverage Undisputed 01/23/2026 1124971189 CMS
Abbott Laboratories $20.32 09/05/2024 Food and Beverage Undisputed 01/23/2026 1124971193 CMS
Abbott Laboratories $14.65 09/13/2024 Food and Beverage Undisputed 01/23/2026 1124971208 CMS
Abbott Laboratories $24.59 12/18/2024 Food and Beverage Undisputed 01/23/2026 1124971196 CMS
Abbott Laboratories $24.67 12/18/2024 Food and Beverage Undisputed 01/23/2026 1124971200 CMS
Abbott Laboratories $23.09 12/18/2024 Food and Beverage Undisputed 01/23/2026 1124971204 CMS
AstraZeneca Pharmaceuticals LP $22.87 06/20/2024 Food and Beverage Undisputed 01/23/2026 1105425193 CMS
AstraZeneca Pharmaceuticals LP $16.67 07/25/2024 Food and Beverage Undisputed 01/23/2026 1104575064 CMS
ATRICURE, INC. $39.77 05/15/2024 Food and Beverage Undisputed 01/23/2026 1132850758 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.09 01/11/2024 Food and Beverage Undisputed 01/23/2026 1117954713 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.60 08/08/2024 Food and Beverage Undisputed 01/23/2026 1117954715 CMS
E.R. Squibb & Sons, L.L.C. $24.46 10/17/2024 Food and Beverage Undisputed 01/23/2026 1101746107 CMS
E.R. Squibb & Sons, L.L.C. $25.85 11/07/2024 Food and Beverage Undisputed 01/23/2026 1101746110 CMS
Edwards Lifesciences Corporation $54.94 01/25/2024 Food and Beverage Undisputed 01/23/2026 1138839302 CMS
Edwards Lifesciences Corporation $57.91 05/23/2024 Food and Beverage Undisputed 01/23/2026 1138839304 CMS
Edwards Lifesciences Corporation $7.09 10/10/2024 Food and Beverage Undisputed 01/23/2026 1138839316 CMS
Edwards Lifesciences Corporation $21.05 10/10/2024 Food and Beverage Undisputed 01/23/2026 1138839318 CMS
Lexicon Pharmaceuticals, Inc. $14.59 07/31/2024 Food and Beverage Undisputed 01/23/2026 1081714466 CMS
Merck Sharp & Dohme LLC $13.67 03/21/2024 Food and Beverage Undisputed 01/23/2026 1141869567 CMS
Merck Sharp & Dohme LLC $16.10 05/16/2024 Food and Beverage Undisputed 01/23/2026 1141697278 CMS
Merck Sharp & Dohme LLC $28.07 08/12/2024 Food and Beverage Undisputed 01/23/2026 1141697280 CMS
Novartis Pharmaceuticals Corporation $23.91 03/14/2024 Food and Beverage Undisputed 01/23/2026 1087224515 CMS
Novartis Pharmaceuticals Corporation $16.11 05/09/2024 Food and Beverage Undisputed 01/23/2026 1087224531 CMS
Novartis Pharmaceuticals Corporation $15.70 05/13/2024 Food and Beverage Undisputed 01/23/2026 1087224535 CMS
PFIZER INC. $25.59 11/15/2024 Food and Beverage Undisputed 01/23/2026 1131018484 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $6.19 05/02/2024 Food and Beverage Undisputed 01/23/2026 1080582887 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $2.14 05/09/2024 Food and Beverage Undisputed 01/23/2026 1080582909 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $2.32 08/15/2024 Food and Beverage Undisputed 01/23/2026 1080583153 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $3.52 08/27/2024 Food and Beverage Undisputed 01/23/2026 1080583189 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $3.14 09/06/2024 Food and Beverage Undisputed 01/23/2026 1080583227 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

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.