Covered recipient · General Payments record

CASSANDRA L WILLIAMSON

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI: 1457565392
CMS profile: 10905008
Location: DAYTON, OH

General Payments · PY2021–2024

$4,848.91

Reported across 303 records
CMS publication 2026-01-23

Latest program year · PY2024

$1,608.45

94 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 payment	Amount	Records
Food and Beverage	$1,608.45	94

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
ABBVIE INC.	$459.31	28
Janssen Biotech, Inc.	$328.17	15
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$233.72	21
GENZYME CORPORATION	$206.87	9
Takeda Pharmaceuticals U.S.A., Inc.	$194.25	12
QOL Medical, LLC	$59.31	2
Gilead Sciences, Inc.	$47.45	3
Ardelyx, Inc.	$38.38	2
Lilly USA, LLC	$23.00	1
Celgene Corporation	$17.99	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2021	$924.35	71
PY2022	$1,233.93	72
PY2023	$1,082.18	66
PY2024	$1,608.45	94

Payment records · PY2024 (94)

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

Program year 2024 2021 2022 2023 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.	$15.20	01/05/2024	Food and Beverage	Undisputed	01/23/2026	1108419723	CMS
ABBVIE INC.	$13.54	02/02/2024	Food and Beverage	Undisputed	01/23/2026	1108419725	CMS
ABBVIE INC.	$15.46	02/29/2024	Food and Beverage	Undisputed	01/23/2026	1108419727	CMS
ABBVIE INC.	$9.87	03/07/2024	Food and Beverage	Undisputed	01/23/2026	1108419729	CMS
ABBVIE INC.	$13.46	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1108419731	CMS
ABBVIE INC.	$13.80	04/01/2024	Food and Beverage	Undisputed	01/23/2026	1108419733	CMS
ABBVIE INC.	$9.68	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1108419735	CMS
ABBVIE INC.	$15.53	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1108419737	CMS
ABBVIE INC.	$14.72	05/01/2024	Food and Beverage	Undisputed	01/23/2026	1108419739	CMS
ABBVIE INC.	$13.16	05/02/2024	Food and Beverage	Undisputed	01/23/2026	1108419741	CMS
ABBVIE INC.	$15.35	05/11/2024	Food and Beverage	Undisputed	01/23/2026	1108419743	CMS
ABBVIE INC.	$22.48	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1108419745	CMS
ABBVIE INC.	$8.19	06/28/2024	Food and Beverage	Undisputed	01/23/2026	1108419747	CMS
ABBVIE INC.	$16.10	07/15/2024	Food and Beverage	Undisputed	01/23/2026	1108419749	CMS
ABBVIE INC.	$18.47	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1108419751	CMS
ABBVIE INC.	$15.30	07/30/2024	Food and Beverage	Undisputed	01/23/2026	1108419753	CMS
ABBVIE INC.	$15.65	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1108419755	CMS
ABBVIE INC.	$8.22	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1108419757	CMS
ABBVIE INC.	$6.85	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1108419759	CMS
ABBVIE INC.	$24.24	09/30/2024	Food and Beverage	Undisputed	01/23/2026	1108419761	CMS
ABBVIE INC.	$20.82	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1108419763	CMS
ABBVIE INC.	$19.09	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1108419765	CMS
ABBVIE INC.	$13.83	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1108419767	CMS
ABBVIE INC.	$25.67	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1108419769	CMS
ABBVIE INC.	$22.58	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1108419771	CMS
ABBVIE INC.	$21.70	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1108419773	CMS
ABBVIE INC.	$27.24	12/13/2024	Food and Beverage	Undisputed	01/23/2026	1108419775	CMS
ABBVIE INC.	$23.11	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1108419777	CMS
Ardelyx, Inc.	$16.84	01/25/2024	Food and Beverage	Undisputed	01/23/2026	1146750482	CMS
Ardelyx, Inc.	$21.54	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1146750484	CMS
Celgene Corporation	$17.99	04/23/2024	Food and Beverage	Undisputed	01/23/2026	1101152887	CMS
GENZYME CORPORATION	$16.96	01/04/2024	Food and Beverage	Undisputed	01/23/2026	1139759344	CMS
GENZYME CORPORATION	$32.74	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1139759346	CMS
GENZYME CORPORATION	$5.23	02/14/2024	Food and Beverage	Undisputed	01/23/2026	1139759354	CMS
GENZYME CORPORATION	$26.48	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1139759362	CMS
GENZYME CORPORATION	$26.90	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1139759364	CMS
GENZYME CORPORATION	$31.20	07/17/2024	Food and Beverage	Undisputed	01/23/2026	1139759382	CMS
GENZYME CORPORATION	$25.24	09/11/2024	Food and Beverage	Undisputed	01/23/2026	1139759400	CMS
GENZYME CORPORATION	$19.36	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1139759418	CMS
GENZYME CORPORATION	$22.76	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1139759422	CMS
Gilead Sciences, Inc.	$13.24	06/19/2024	Food and Beverage	Undisputed	01/23/2026	1133717923	CMS
Gilead Sciences, Inc.	$20.78	09/24/2024	Food and Beverage	Undisputed	01/23/2026	1133717925	CMS
Gilead Sciences, Inc.	$13.43	10/02/2024	Food and Beverage	Undisputed	01/23/2026	1133717927	CMS
Janssen Biotech, Inc.	$15.58	01/17/2024	Food and Beverage	Undisputed	01/23/2026	1078502400	CMS
Janssen Biotech, Inc.	$16.52	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1078502209	CMS
Janssen Biotech, Inc.	$22.61	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1078501029	CMS
Janssen Biotech, Inc.	$7.97	02/23/2024	Food and Beverage	Undisputed	01/23/2026	1078501827	CMS
Janssen Biotech, Inc.	$23.36	03/14/2024	Food and Beverage	Undisputed	01/23/2026	1078500860	CMS
Janssen Biotech, Inc.	$15.19	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1078500967	CMS
Janssen Biotech, Inc.	$34.96	04/26/2024	Food and Beverage	Undisputed	01/23/2026	1078501229	CMS
Janssen Biotech, Inc.	$25.25	06/29/2024	Food and Beverage	Undisputed	01/23/2026	1078501272	CMS
Janssen Biotech, Inc.	$28.16	08/07/2024	Food and Beverage	Undisputed	01/23/2026	1078501369	CMS
Janssen Biotech, Inc.	$26.76	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1078501731	CMS
Janssen Biotech, Inc.	$24.14	09/24/2024	Food and Beverage	Undisputed	01/23/2026	1078502654	CMS
Janssen Biotech, Inc.	$23.40	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1078500455	CMS
Janssen Biotech, Inc.	$22.01	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1078500722	CMS
Janssen Biotech, Inc.	$18.65	12/17/2024	Food and Beverage	Undisputed	01/23/2026	1078502201	CMS
Janssen Biotech, Inc.	$23.61	12/17/2024	Food and Beverage	Undisputed	01/23/2026	1078502638	CMS
Lilly USA, LLC	$23.00	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1135544015	CMS
QOL Medical, LLC	$28.68	09/18/2024	Food and Beverage	Undisputed	01/23/2026	1147733110	CMS
QOL Medical, LLC	$30.63	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1147733112	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$8.69	01/11/2024	Food and Beverage	Undisputed	01/23/2026	1153468565	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$13.44	01/11/2024	Food and Beverage	Undisputed	01/23/2026	1153558895	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.73	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1153449009	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.27	03/06/2024	Food and Beverage	Undisputed	01/23/2026	1153630953	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.65	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1153739032	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.88	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1153487149	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.33	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1153551337	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.13	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1153697015	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$15.82	07/03/2024	Food and Beverage	Undisputed	01/23/2026	1153576652	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$8.59	07/03/2024	Food and Beverage	Undisputed	01/23/2026	1153640510	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.24	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1153726971	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.95	08/28/2024	Food and Beverage	Undisputed	01/23/2026	1153429411	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.61	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153561159	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$11.44	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153716637	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.14	10/04/2024	Food and Beverage	Undisputed	01/23/2026	1153439075	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$6.83	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1153396479	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$11.99	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1153560195	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$13.73	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1153514682	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.21	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1153727599	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.72	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1153469117	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.33	12/23/2024	Food and Beverage	Undisputed	01/23/2026	1153615204	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$13.15	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1137844658	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$12.32	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1137844660	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$10.68	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1137844662	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$14.67	05/09/2024	Food and Beverage	Undisputed	01/23/2026	1137844664	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$15.85	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1137844666	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.42	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1137844668	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$14.94	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1137844670	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$24.02	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1137844672	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$21.37	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1137844674	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$14.71	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1137844676	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.32	11/08/2024	Food and Beverage	Undisputed	01/23/2026	1137844678	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.80	12/03/2024	Food and Beverage	Undisputed	01/23/2026	1137844680	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: 2021, 2022, 2023, 2024
Source files: Dataset page · Bulk file · 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.