Covered recipient · General Payments record

MARK M DAVIDSON

Allopathic & Osteopathic Physicians Internal Medicine

NPI: 1164459178
CMS profile: 279549
Location: LOS ANGELES, CA

General Payments · PY2018–2024

$13,502.27

Reported across 687 records
CMS publication 2026-01-23

Latest program year · PY2024

$2,443.72

115 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	$2,404.02	114
Education	$39.70	1

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1,281.04	66
QOL Medical, LLC	$526.88	24
Janssen Biotech, Inc.	$303.69	14
GENZYME CORPORATION	$130.71	2
CapsoVision, Inc.	$42.51	2
Ardelyx, Inc.	$40.71	2
Takeda Pharmaceuticals U.S.A., Inc.	$39.70	1
Meridian Bioscience Inc.	$35.92	2
Phathom Pharmaceuticals, Inc.	$24.11	1
Celgene Corporation	$18.45	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$1,500.81	61
PY2019	$1,123.43	48
PY2020	$1,791.38	95
PY2021	$2,430.47	141
PY2022	$2,392.90	134
PY2023	$1,819.56	93
PY2024	$2,443.72	115

Payment records · PY2024 (115)

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

Program year 2024 2018 2019 2020 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
Ardelyx, Inc.	$16.82	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1146677372	CMS
Ardelyx, Inc.	$23.89	09/13/2024	Food and Beverage	Undisputed	01/23/2026	1146677374	CMS
CapsoVision, Inc.	$18.34	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1154307770	CMS
CapsoVision, Inc.	$24.17	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1154307772	CMS
Celgene Corporation	$18.45	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1101088389	CMS
GENZYME CORPORATION	$107.53	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1139624713	CMS
GENZYME CORPORATION	$23.18	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1139624705	CMS
Janssen Biotech, Inc.	$11.39	01/18/2024	Food and Beverage	Undisputed	01/23/2026	1078307312	CMS
Janssen Biotech, Inc.	$6.48	02/20/2024	Food and Beverage	Undisputed	01/23/2026	1078307250	CMS
Janssen Biotech, Inc.	$18.37	03/06/2024	Food and Beverage	Undisputed	01/23/2026	1078308696	CMS
Janssen Biotech, Inc.	$8.62	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1078307132	CMS
Janssen Biotech, Inc.	$31.03	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1078306322	CMS
Janssen Biotech, Inc.	$5.64	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1078308072	CMS
Janssen Biotech, Inc.	$9.49	05/10/2024	Food and Beverage	Undisputed	01/23/2026	1078308130	CMS
Janssen Biotech, Inc.	$21.04	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1078306178	CMS
Janssen Biotech, Inc.	$28.04	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1078307068	CMS
Janssen Biotech, Inc.	$11.88	10/01/2024	Food and Beverage	Undisputed	01/23/2026	1078308020	CMS
Janssen Biotech, Inc.	$103.03	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1078308114	CMS
Janssen Biotech, Inc.	$27.32	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1078309100	CMS
Janssen Biotech, Inc.	$12.27	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1078309134	CMS
Janssen Biotech, Inc.	$9.09	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1078307146	CMS
Meridian Bioscience Inc.	$17.92	04/01/2024	Food and Beverage	Undisputed	01/23/2026	1137917362	CMS
Meridian Bioscience Inc.	$18.00	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1137917364	CMS
Phathom Pharmaceuticals, Inc.	$24.11	09/06/2024	Food and Beverage	Undisputed	01/23/2026	1151053969	CMS
QOL Medical, LLC	$18.30	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1147711606	CMS
QOL Medical, LLC	$8.15	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1147711608	CMS
QOL Medical, LLC	$22.71	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1147711610	CMS
QOL Medical, LLC	$24.88	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1147711612	CMS
QOL Medical, LLC	$8.50	05/02/2024	Food and Beverage	Undisputed	01/23/2026	1147711614	CMS
QOL Medical, LLC	$16.63	05/08/2024	Food and Beverage	Undisputed	01/23/2026	1147711616	CMS
QOL Medical, LLC	$15.70	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1147711618	CMS
QOL Medical, LLC	$13.70	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1147711620	CMS
QOL Medical, LLC	$11.08	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1147711622	CMS
QOL Medical, LLC	$13.33	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1147711624	CMS
QOL Medical, LLC	$18.04	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1147711626	CMS
QOL Medical, LLC	$20.39	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1147711628	CMS
QOL Medical, LLC	$9.04	07/02/2024	Food and Beverage	Undisputed	01/23/2026	1147711630	CMS
QOL Medical, LLC	$30.14	07/25/2024	Food and Beverage	Undisputed	01/23/2026	1147711632	CMS
QOL Medical, LLC	$21.42	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1147711634	CMS
QOL Medical, LLC	$21.05	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1147711636	CMS
QOL Medical, LLC	$8.81	08/16/2024	Food and Beverage	Undisputed	01/23/2026	1147711638	CMS
QOL Medical, LLC	$19.19	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1147711640	CMS
QOL Medical, LLC	$23.12	09/13/2024	Food and Beverage	Undisputed	01/23/2026	1147711642	CMS
QOL Medical, LLC	$25.67	09/20/2024	Food and Beverage	Undisputed	01/23/2026	1147711644	CMS
QOL Medical, LLC	$19.88	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1147711646	CMS
QOL Medical, LLC	$123.06	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1147711604	CMS
QOL Medical, LLC	$17.29	11/15/2024	Food and Beverage	Undisputed	01/23/2026	1147711648	CMS
QOL Medical, LLC	$16.80	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1147711650	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.78	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1153616986	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$3.13	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1153688086	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$8.48	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1153722926	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.20	01/08/2024	Food and Beverage	Undisputed	01/23/2026	1153625325	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.86	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1153518826	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.70	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1153595215	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.21	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1153557021	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.18	01/24/2024	Food and Beverage	Undisputed	01/23/2026	1153489705	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$2.54	01/24/2024	Food and Beverage	Undisputed	01/23/2026	1153537434	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.66	01/24/2024	Food and Beverage	Undisputed	01/23/2026	1153578427	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.01	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1153636950	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.43	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1153707829	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.45	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1153565459	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.31	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1153741092	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.51	03/06/2024	Food and Beverage	Undisputed	01/23/2026	1153452355	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.33	03/07/2024	Food and Beverage	Undisputed	01/23/2026	1153437172	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.42	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1153457951	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.07	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1153635782	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$6.73	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1153704970	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.81	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1153553451	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.88	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1153754895	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.27	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1153524375	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$19.46	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1153527629	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$123.06	04/08/2024	Food and Beverage	Undisputed	01/23/2026	1153477304	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$3.44	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153513020	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.98	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153556501	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$12.77	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153587226	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$3.64	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153666622	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.68	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153681079	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.64	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153698927	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.79	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1153571680	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.43	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1153590072	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$23.53	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1153397027	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$5.98	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1153648486	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.77	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1153616762	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.20	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1153501639	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.13	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1153606420	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.49	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1153420509	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$24.60	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1153675984	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$19.58	07/03/2024	Food and Beverage	Undisputed	01/23/2026	1153562936	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$2.93	07/23/2024	Food and Beverage	Undisputed	01/23/2026	1153620835	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.61	07/23/2024	Food and Beverage	Undisputed	01/23/2026	1153643539	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$24.30	08/07/2024	Food and Beverage	Undisputed	01/23/2026	1153521966	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.71	08/13/2024	Food and Beverage	Undisputed	01/23/2026	1153573864	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.94	08/13/2024	Food and Beverage	Undisputed	01/23/2026	1153707264	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.26	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1153443099	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$19.65	08/28/2024	Food and Beverage	Undisputed	01/23/2026	1153510143	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$11.51	08/28/2024	Food and Beverage	Undisputed	01/23/2026	1153656257	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.99	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1153616842	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$24.98	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153721698	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.88	10/02/2024	Food and Beverage	Undisputed	01/23/2026	1153432321	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.32	10/09/2024	Food and Beverage	Undisputed	01/23/2026	1153572724	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1.87	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1153523647	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.67	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1153531350	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$12.33	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1153651394	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.94	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1153513456	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.79	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1153554257	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$15.69	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1153605956	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.73	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1153460893	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$23.20	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1153575292	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$5.33	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1153671699	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.53	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1153504465	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$124.83	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1153511487	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$24.83	11/27/2024	Food and Beverage	Undisputed	01/23/2026	1153485139	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$12.09	12/02/2024	Food and Beverage	Undisputed	01/23/2026	1153657713	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$25.00	12/23/2024	Food and Beverage	Undisputed	01/23/2026	1153678184	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$39.70	05/07/2024	Education	Undisputed	01/23/2026	1137525059	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

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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.