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

KUMARASAMY SIVAKUMAR

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1083762884
CMS profile
275955
Location
LANCASTER, CA

General Payments · PY2018–2021

$2,748.04

  • Reported across 145 records
  • CMS publication 2026-01-23

Latest program year · PY2021

$421.61

21 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

PY2021 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $421.61 21

By paying entity

PY2021 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $827.27 36
PY2019 $491.87 31
PY2020 $1,007.29 57
PY2021 $421.61 21

Payment records · PY2021 (21)

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

Program year 2021 201820192020 Record-level detail is published for PY2021; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
AbbVie Inc. $20.31 01/30/2021 Food and Beverage Undisputed 01/23/2026 796053777 CMS
AbbVie Inc. $20.07 02/04/2021 Food and Beverage Undisputed 01/23/2026 796053779 CMS
AbbVie Inc. $12.42 03/19/2021 Food and Beverage Undisputed 01/23/2026 796053781 CMS
AbbVie Inc. $24.99 07/10/2021 Food and Beverage Undisputed 01/23/2026 796053783 CMS
Amgen Inc. $16.76 02/18/2021 Food and Beverage Undisputed 01/23/2026 825533551 CMS
Amgen Inc. $22.42 05/28/2021 Food and Beverage Undisputed 01/23/2026 825533557 CMS
Avanir Pharmaceuticals, Inc. $20.23 01/21/2021 Food and Beverage Undisputed 01/23/2026 801045705 CMS
Avanir Pharmaceuticals, Inc. $17.13 04/16/2021 Food and Beverage Undisputed 01/23/2026 801034813 CMS
Biohaven Pharmaceuticals, Inc. $15.54 02/12/2021 Food and Beverage Undisputed 01/23/2026 852627693 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.58 01/28/2021 Food and Beverage Undisputed 01/23/2026 763646352 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.21 04/09/2021 Food and Beverage Undisputed 01/23/2026 763646350 CMS
GlaxoSmithKline, LLC. $23.25 06/16/2021 Food and Beverage Undisputed 01/23/2026 801936095 CMS
GlaxoSmithKline, LLC. $23.97 08/12/2021 Food and Beverage Undisputed 01/23/2026 801636745 CMS
Ironwood Pharmaceuticals, Inc $14.41 01/08/2021 Food and Beverage Undisputed 01/23/2026 855119821 CMS
Ironwood Pharmaceuticals, Inc $24.14 02/26/2021 Food and Beverage Undisputed 01/23/2026 855121891 CMS
Lilly USA, LLC $23.98 05/15/2021 Food and Beverage Undisputed 01/23/2026 818582849 CMS
Novo Nordisk Inc $19.84 01/07/2021 Food and Beverage Undisputed 01/23/2026 811168249 CMS
Novo Nordisk Inc $19.24 02/05/2021 Food and Beverage Undisputed 01/23/2026 811607765 CMS
Novo Nordisk Inc $23.46 02/19/2021 Food and Beverage Undisputed 01/23/2026 811703199 CMS
Novo Nordisk Inc $24.60 04/24/2021 Food and Beverage Undisputed 01/23/2026 810654835 CMS
SANOFI-AVENTIS U.S. LLC $19.06 03/04/2021 Food and Beverage Undisputed 01/23/2026 843465879 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
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021
Generated from
OP_DTL_GNRL_PGYR2021_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.