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

VIKRAM AGGARWAL

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1316235583
CMS profile
827181
Location
CHICAGO, IL

General Payments · PY2018–2024

$39,513.06

  • Reported across 49 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$14,653.44

19 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

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
CALLIDITAS THERAPEUTICS US INC. $9,264.66 9
BAXTER HEALTHCARE $4,545.60 5
Outset Medical Inc $700.00 2
Alexion Pharmaceuticals, Inc. $79.99 1
NXSTAGE MEDICAL, INC. $46.30 1
Retrophin, Inc. $16.89 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $439.32 8
PY2019 $193.61 3
PY2021 $5,150.00 2
PY2022 $4,640.98 5
PY2023 $14,435.71 12
PY2024 $14,653.44 19

Payment records · PY2024 (19)

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
Alexion Pharmaceuticals, Inc. $79.99 10/01/2024 Education Undisputed 01/23/2026 1093933126 CMS
Baxter Healthcare $2,070.00 04/05/2024 Education Undisputed 01/23/2026 1113700088 CMS
Baxter Healthcare $38.10 06/25/2024 Food and Beverage Undisputed 01/23/2026 1120650957 CMS
Baxter Healthcare $937.50 10/24/2024 Consulting Fee Undisputed 01/23/2026 1114407939 CMS
Baxter Healthcare $562.50 11/14/2024 Consulting Fee Undisputed 01/23/2026 1114407937 CMS
Baxter Healthcare $937.50 12/10/2024 Consulting Fee Undisputed 01/23/2026 1114407941 CMS
CALLIDITAS THERAPEUTICS US INC. $950.00 07/31/2024 Honoraria Undisputed 01/23/2026 1141519547 CMS
CALLIDITAS THERAPEUTICS US INC. $84.64 09/17/2024 Food and Beverage Undisputed 01/23/2026 1141522119 CMS
CALLIDITAS THERAPEUTICS US INC. $321.02 09/17/2024 Travel and Lodging Undisputed 01/23/2026 1141522121 CMS
CALLIDITAS THERAPEUTICS US INC. $521.50 09/17/2024 Travel and Lodging Undisputed 01/23/2026 1141522123 CMS
CALLIDITAS THERAPEUTICS US INC. $632.95 09/17/2024 Travel and Lodging Undisputed 01/23/2026 1141522125 CMS
CALLIDITAS THERAPEUTICS US INC. $104.55 09/26/2024 Food and Beverage Undisputed 01/23/2026 1141523125 CMS
CALLIDITAS THERAPEUTICS US INC. $2,850.00 09/26/2024 Honoraria Undisputed 01/23/2026 1141523127 CMS
CALLIDITAS THERAPEUTICS US INC. $2,850.00 10/02/2024 Honoraria Undisputed 01/23/2026 1141523861 CMS
CALLIDITAS THERAPEUTICS US INC. $950.00 12/04/2024 Honoraria Undisputed 01/23/2026 1141528511 CMS
NXSTAGE MEDICAL, INC. $46.30 03/08/2024 Food and Beverage Undisputed 01/23/2026 1154283749 CMS
Outset Medical Inc $350.00 04/04/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1138611254 CMS
Outset Medical Inc $350.00 08/01/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1138611256 CMS
Travere Therapeutics, Inc. $16.89 02/16/2024 Education Undisputed 01/23/2026 1149957254 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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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.