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

KARAN SINGH

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1265797161
CMS profile
4225610
Location
CHICAGO, IL

General Payments · PY2018–2024

$13,221.52

  • Reported across 165 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,417.82

44 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 $969.88 40
Honoraria $750.00 1
Travel and Lodging $607.95 2
Education $89.99 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $876.30 2
PY2019 $176.71 10
PY2020 $291.47 18
PY2021 $357.34 23
PY2022 $1,251.88 27
PY2023 $7,850.00 41
PY2024 $2,417.82 44

Payment records · PY2024 (44)

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
Actelion Pharmaceuticals US, Inc. $89.99 06/14/2024 Education Undisputed 01/23/2026 1078888111 CMS
Actelion Pharmaceuticals US, Inc. $17.08 06/14/2024 Food and Beverage Undisputed 01/23/2026 1078888129 CMS
Actelion Pharmaceuticals US, Inc. $17.57 10/29/2024 Food and Beverage Undisputed 01/23/2026 1078888117 CMS
Amgen Inc. $13.09 03/07/2024 Food and Beverage Undisputed 01/23/2026 1111710022 CMS
AstraZeneca Pharmaceuticals LP $118.70 01/25/2024 Food and Beverage Undisputed 01/23/2026 1105463439 CMS
AstraZeneca Pharmaceuticals LP $53.86 01/26/2024 Food and Beverage Undisputed 01/23/2026 1105444640 CMS
AstraZeneca Pharmaceuticals LP $14.29 03/29/2024 Food and Beverage Undisputed 01/23/2026 1104536065 CMS
AstraZeneca Pharmaceuticals LP $13.94 05/25/2024 Food and Beverage Undisputed 01/23/2026 1105540695 CMS
AstraZeneca Pharmaceuticals LP $15.90 09/26/2024 Food and Beverage Undisputed 01/23/2026 1104318700 CMS
AstraZeneca Pharmaceuticals LP $17.39 11/07/2024 Food and Beverage Undisputed 01/23/2026 1105380320 CMS
AstraZeneca Pharmaceuticals LP $13.47 11/14/2024 Food and Beverage Undisputed 01/23/2026 1105823205 CMS
AstraZeneca Pharmaceuticals LP $13.63 11/21/2024 Food and Beverage Undisputed 01/23/2026 1104662229 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.25 01/30/2024 Food and Beverage Undisputed 01/23/2026 1117941123 CMS
Cook Incorporated $750.00 10/07/2024 Honoraria Undisputed 01/23/2026 1118324377 CMS
GENZYME CORPORATION $24.68 01/19/2024 Food and Beverage Undisputed 01/23/2026 1139588981 CMS
GENZYME CORPORATION $19.02 10/03/2024 Food and Beverage Undisputed 01/23/2026 1139589019 CMS
GlaxoSmithKline, LLC. $23.27 02/20/2024 Food and Beverage Undisputed 01/23/2026 1116303655 CMS
GlaxoSmithKline, LLC. $13.36 04/02/2024 Food and Beverage Undisputed 01/23/2026 1116278690 CMS
GlaxoSmithKline, LLC. $1.34 05/16/2024 Food and Beverage Undisputed 01/23/2026 1116581015 CMS
GlaxoSmithKline, LLC. $19.07 07/10/2024 Food and Beverage Undisputed 01/23/2026 1116590323 CMS
GlaxoSmithKline, LLC. $25.52 09/12/2024 Food and Beverage Undisputed 01/23/2026 1115972910 CMS
GlaxoSmithKline, LLC. $32.42 10/14/2024 Food and Beverage Undisputed 01/23/2026 1116118645 CMS
GlaxoSmithKline, LLC. $18.99 10/15/2024 Food and Beverage Undisputed 01/23/2026 1116278650 CMS
GlaxoSmithKline, LLC. $19.07 10/31/2024 Food and Beverage Undisputed 01/23/2026 1116576362 CMS
GlaxoSmithKline, LLC. $9.68 11/18/2024 Food and Beverage Undisputed 01/23/2026 1116704314 CMS
Grifols USA, LLC $16.93 01/09/2024 Food and Beverage Undisputed 01/23/2026 1124747947 CMS
Grifols USA, LLC $15.17 02/12/2024 Food and Beverage Undisputed 01/23/2026 1124747949 CMS
Insmed, Inc. $17.96 04/11/2024 Food and Beverage Undisputed 01/23/2026 1089574038 CMS
Insmed, Inc. $14.84 06/13/2024 Food and Beverage Undisputed 01/23/2026 1089565115 CMS
Insmed, Inc. $18.10 10/02/2024 Food and Beverage Undisputed 01/23/2026 1089572218 CMS
INTUITIVE SURGICAL, INC. $19.00 07/23/2024 Travel and Lodging Undisputed 01/23/2026 1137181438 CMS
INTUITIVE SURGICAL, INC. $588.95 07/23/2024 Travel and Lodging Undisputed 01/23/2026 1137270923 CMS
INTUITIVE SURGICAL, INC. $120.29 08/09/2024 Food and Beverage Undisputed 01/23/2026 1137069035 CMS
La Jolla Pharmaceutical Company $16.65 03/28/2024 Food and Beverage Undisputed 01/23/2026 1154251226 CMS
Merck Sharp & Dohme LLC $16.26 03/15/2024 Food and Beverage Undisputed 01/23/2026 1141831150 CMS
Merck Sharp & Dohme LLC $13.62 10/21/2024 Food and Beverage Undisputed 01/23/2026 1141580823 CMS
Mylan Specialty L.P. $17.37 01/16/2024 Food and Beverage Undisputed 01/23/2026 1147368382 CMS
Mylan Specialty L.P. $19.92 03/01/2024 Food and Beverage Undisputed 01/23/2026 1147337898 CMS
Mylan Specialty L.P. $18.05 06/07/2024 Food and Beverage Undisputed 01/23/2026 1147377682 CMS
Olympus America Inc. $59.04 12/04/2024 Food and Beverage Undisputed 01/23/2026 1108483891 CMS
PFIZER INC. $20.55 07/19/2024 Food and Beverage Undisputed 01/23/2026 1130942093 CMS
Regeneron Healthcare Solutions, Inc. $20.36 02/29/2024 Food and Beverage Undisputed 01/23/2026 1114175885 CMS
Regeneron Healthcare Solutions, Inc. $13.17 10/24/2024 Food and Beverage Undisputed 01/23/2026 1114175889 CMS
Regeneron Healthcare Solutions, Inc. $21.01 12/02/2024 Food and Beverage Undisputed 01/23/2026 1114175894 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.