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

JOHN C CALLISON

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1528115334
CMS profile
159320
Location
KNOXVILLE, TN

General Payments · PY2018–2024

$8,056.78

  • Reported across 277 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$545.31

29 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 $545.31 29

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,081.83 65
PY2019 $975.65 64
PY2020 $331.22 21
PY2021 $306.61 18
PY2022 $4,039.72 35
PY2023 $776.44 45
PY2024 $545.31 29

Payment records · PY2024 (29)

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
ABBVIE INC. $15.32 02/27/2024 Food and Beverage Undisputed 01/23/2026 1103406587 CMS
ABBVIE INC. $13.85 12/12/2024 Food and Beverage Undisputed 01/23/2026 1103406589 CMS
AstraZeneca Pharmaceuticals LP $22.56 05/16/2024 Food and Beverage Undisputed 01/23/2026 1104578308 CMS
AstraZeneca Pharmaceuticals LP $16.17 05/30/2024 Food and Beverage Undisputed 01/23/2026 1105747869 CMS
AstraZeneca Pharmaceuticals LP $16.83 08/15/2024 Food and Beverage Undisputed 01/23/2026 1105276430 CMS
AstraZeneca Pharmaceuticals LP $17.08 10/24/2024 Food and Beverage Undisputed 01/23/2026 1105740792 CMS
Baxter Healthcare $17.44 10/23/2024 Food and Beverage Undisputed 01/23/2026 1120662601 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.18 03/07/2024 Food and Beverage Undisputed 01/23/2026 1118045128 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $18.42 04/24/2024 Food and Beverage Undisputed 01/23/2026 1118045130 CMS
GlaxoSmithKline, LLC. $18.09 02/21/2024 Food and Beverage Undisputed 01/23/2026 1115961548 CMS
GlaxoSmithKline, LLC. $18.38 05/03/2024 Food and Beverage Undisputed 01/23/2026 1116317130 CMS
GlaxoSmithKline, LLC. $13.73 06/14/2024 Food and Beverage Undisputed 01/23/2026 1116455145 CMS
GlaxoSmithKline, LLC. $17.28 07/24/2024 Food and Beverage Undisputed 01/23/2026 1116518670 CMS
GlaxoSmithKline, LLC. $18.66 08/07/2024 Food and Beverage Undisputed 01/23/2026 1116315024 CMS
GlaxoSmithKline, LLC. $17.77 11/07/2024 Food and Beverage Undisputed 01/23/2026 1115877143 CMS
Grifols USA, LLC $18.96 01/10/2024 Food and Beverage Undisputed 01/23/2026 1124728571 CMS
Insmed, Inc. $24.65 02/07/2024 Food and Beverage Undisputed 01/23/2026 1089578684 CMS
Insmed, Inc. $24.48 03/20/2024 Food and Beverage Undisputed 01/23/2026 1089581608 CMS
Insmed, Inc. $19.56 09/09/2024 Food and Beverage Undisputed 01/23/2026 1089567941 CMS
Janssen Pharmaceuticals, Inc $15.92 09/05/2024 Food and Beverage Undisputed 01/23/2026 1078185477 CMS
Merck Sharp & Dohme LLC $18.05 02/15/2024 Food and Beverage Undisputed 01/23/2026 1141558092 CMS
Merck Sharp & Dohme LLC $19.45 07/25/2024 Food and Beverage Undisputed 01/23/2026 1141909210 CMS
Merck Sharp & Dohme LLC $23.75 08/22/2024 Food and Beverage Undisputed 01/23/2026 1141822791 CMS
Mylan Specialty L.P. $23.22 01/04/2024 Food and Beverage Undisputed 01/23/2026 1147368335 CMS
Mylan Specialty L.P. $14.27 05/22/2024 Food and Beverage Undisputed 01/23/2026 1147366565 CMS
Regeneron Healthcare Solutions, Inc. $20.97 06/20/2024 Food and Beverage Undisputed 01/23/2026 1114018287 CMS
United Therapeutics Corporation $22.70 02/22/2024 Food and Beverage Undisputed 01/23/2026 1149451397 CMS
United Therapeutics Corporation $19.30 04/25/2024 Food and Beverage Undisputed 01/23/2026 1149467352 CMS
Vifor Pharma, Inc. $25.27 06/19/2024 Food and Beverage Undisputed 01/23/2026 1124057308 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.