Covered recipient · General Payments record

MARK M SONG

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI: 1326068560
CMS profile: 150446
Location: LOS ANGELES, CA

General Payments · PY2018–2024

$26,505.25

Reported across 1,536 records
CMS publication 2026-01-23

Latest program year · PY2024

$2,963.01

136 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	$2,918.43	133
Education	$44.58	3

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Amgen Inc.	$529.71	32
Boehringer Ingelheim Pharmaceuticals, Inc.	$443.42	17
Acerta Pharma LLC	$404.99	17
NOVARTIS PHARMACEUTICALS CORPORATION	$262.04	10
Relypsa, Inc.	$223.06	9
Novo Nordisk AS	$153.85	7
Otsuka America Pharmaceutical, Inc.	$143.49	7
Lilly USA, LLC	$98.71	4
Ardelyx, Inc.	$85.53	4
CALLIDITAS THERAPEUTICS US INC.	$67.90	3
Bayer HealthCare Pharmaceuticals Inc.	$63.52	4
Radius Health, Inc.	$62.20	2
ABBVIE INC.	$60.21	3
Gilead Sciences, Inc.	$54.23	3
AKEBIA THERAPEUTICS INC	$52.38	2
Fresenius USA Marketing, Inc.	$50.46	2
GlaxoSmithKline, LLC.	$49.65	2
IRONWOOD PHARMACEUTICALS, INC	$37.04	2
Merck Sharp & Dohme Corporation	$34.31	1
Lexicon Pharmaceuticals, Inc.	$23.92	1
VIVUS LLC	$23.82	1
Retrophin, Inc.	$19.97	2
Esperion Therapeutics, Inc.	$18.60	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$4,851.25	340
PY2019	$4,638.08	301
PY2020	$3,490.73	199
PY2021	$3,961.74	216
PY2022	$3,451.83	181
PY2023	$3,148.61	163
PY2024	$2,963.01	136

Payment records · PY2024 (136)

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
ABBVIE INC.	$21.93	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1106138476	CMS
ABBVIE INC.	$24.83	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1106138478	CMS
ABBVIE INC.	$13.45	07/15/2024	Food and Beverage	Undisputed	01/23/2026	1106138480	CMS
AKEBIA THERAPEUTICS INC	$27.77	09/18/2024	Food and Beverage	Undisputed	01/23/2026	1145828280	CMS
AKEBIA THERAPEUTICS INC	$24.61	09/18/2024	Education	Undisputed	01/23/2026	1145833321	CMS
Amgen Inc.	$4.96	01/08/2024	Food and Beverage	Undisputed	01/23/2026	1117388150	CMS
Amgen Inc.	$23.69	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1111713388	CMS
Amgen Inc.	$2.85	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1117388152	CMS
Amgen Inc.	$26.33	01/25/2024	Food and Beverage	Undisputed	01/23/2026	1111713390	CMS
Amgen Inc.	$14.78	01/31/2024	Food and Beverage	Undisputed	01/23/2026	1117388154	CMS
Amgen Inc.	$30.53	02/09/2024	Food and Beverage	Undisputed	01/23/2026	1111713374	CMS
Amgen Inc.	$20.94	02/26/2024	Food and Beverage	Undisputed	01/23/2026	1111713392	CMS
Amgen Inc.	$7.00	03/04/2024	Food and Beverage	Undisputed	01/23/2026	1117388156	CMS
Amgen Inc.	$24.49	03/08/2024	Food and Beverage	Undisputed	01/23/2026	1111713376	CMS
Amgen Inc.	$12.12	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1117388158	CMS
Amgen Inc.	$11.65	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1117388160	CMS
Amgen Inc.	$6.31	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1117388162	CMS
Amgen Inc.	$29.88	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1117388164	CMS
Amgen Inc.	$27.00	05/15/2024	Food and Beverage	Undisputed	01/23/2026	1111713378	CMS
Amgen Inc.	$22.49	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1111713394	CMS
Amgen Inc.	$3.99	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1117388166	CMS
Amgen Inc.	$12.05	07/22/2024	Food and Beverage	Undisputed	01/23/2026	1117388168	CMS
Amgen Inc.	$5.94	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1117388170	CMS
Amgen Inc.	$26.05	08/05/2024	Food and Beverage	Undisputed	01/23/2026	1111713380	CMS
Amgen Inc.	$14.95	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1117388172	CMS
Amgen Inc.	$23.35	08/26/2024	Food and Beverage	Undisputed	01/23/2026	1111713382	CMS
Amgen Inc.	$17.33	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1117388174	CMS
Amgen Inc.	$32.68	09/13/2024	Food and Beverage	Undisputed	01/23/2026	1111713384	CMS
Amgen Inc.	$23.37	10/07/2024	Food and Beverage	Undisputed	01/23/2026	1111713396	CMS
Amgen Inc.	$32.57	10/11/2024	Food and Beverage	Undisputed	01/23/2026	1111713386	CMS
Amgen Inc.	$5.98	10/14/2024	Food and Beverage	Undisputed	01/23/2026	1117388176	CMS
Amgen Inc.	$6.05	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1117388178	CMS
Amgen Inc.	$26.68	11/08/2024	Food and Beverage	Undisputed	01/23/2026	1111713398	CMS
Amgen Inc.	$4.53	11/11/2024	Food and Beverage	Undisputed	01/23/2026	1117388180	CMS
Amgen Inc.	$11.15	11/25/2024	Food and Beverage	Undisputed	01/23/2026	1117388182	CMS
Amgen Inc.	$9.32	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1117388184	CMS
Amgen Inc.	$8.70	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1117388186	CMS
Ardelyx, Inc.	$26.94	01/04/2024	Food and Beverage	Undisputed	01/23/2026	1146708966	CMS
Ardelyx, Inc.	$17.61	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1146708968	CMS
Ardelyx, Inc.	$20.68	04/06/2024	Food and Beverage	Undisputed	01/23/2026	1146708970	CMS
Ardelyx, Inc.	$20.30	05/10/2024	Food and Beverage	Undisputed	01/23/2026	1146708972	CMS
AstraZeneca Pharmaceuticals LP	$22.35	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1105736727	CMS
AstraZeneca Pharmaceuticals LP	$17.20	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1104477044	CMS
AstraZeneca Pharmaceuticals LP	$36.14	03/05/2024	Food and Beverage	Undisputed	01/23/2026	1104244113	CMS
AstraZeneca Pharmaceuticals LP	$16.98	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1104487480	CMS
AstraZeneca Pharmaceuticals LP	$23.84	03/15/2024	Food and Beverage	Undisputed	01/23/2026	1104417587	CMS
AstraZeneca Pharmaceuticals LP	$23.97	04/09/2024	Food and Beverage	Undisputed	01/23/2026	1104352908	CMS
AstraZeneca Pharmaceuticals LP	$20.46	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1104351090	CMS
AstraZeneca Pharmaceuticals LP	$22.45	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1104466890	CMS
AstraZeneca Pharmaceuticals LP	$29.50	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1105602202	CMS
AstraZeneca Pharmaceuticals LP	$21.41	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1104316590	CMS
AstraZeneca Pharmaceuticals LP	$22.43	06/07/2024	Food and Beverage	Undisputed	01/23/2026	1104338400	CMS
AstraZeneca Pharmaceuticals LP	$33.58	07/18/2024	Food and Beverage	Undisputed	01/23/2026	1105859772	CMS
AstraZeneca Pharmaceuticals LP	$18.70	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1104683467	CMS
AstraZeneca Pharmaceuticals LP	$25.20	09/24/2024	Food and Beverage	Undisputed	01/23/2026	1104313654	CMS
AstraZeneca Pharmaceuticals LP	$28.97	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1104551142	CMS
AstraZeneca Pharmaceuticals LP	$17.97	10/14/2024	Food and Beverage	Undisputed	01/23/2026	1105493101	CMS
AstraZeneca Pharmaceuticals LP	$23.84	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1105702582	CMS
Bayer Healthcare Pharmaceuticals Inc.	$14.86	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1086155694	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.22	07/29/2024	Food and Beverage	Undisputed	01/23/2026	1086116462	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.22	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1086120788	CMS
Bayer Healthcare Pharmaceuticals Inc.	$16.22	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1086198542	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$23.92	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1117963804	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.25	01/31/2024	Food and Beverage	Undisputed	01/23/2026	1117963800	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$29.17	02/08/2024	Food and Beverage	Undisputed	01/23/2026	1117963816	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$26.22	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1117963810	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$24.07	02/22/2024	Food and Beverage	Undisputed	01/23/2026	1117963806	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$29.29	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1117963818	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.62	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1117963826	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$27.66	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1117963814	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$27.48	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1117963812	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$20.46	05/17/2024	Food and Beverage	Undisputed	01/23/2026	1117963832	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$29.57	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1117963820	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$25.93	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1117963808	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$29.86	07/09/2024	Food and Beverage	Undisputed	01/23/2026	1117963822	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$31.29	08/20/2024	Food and Beverage	Undisputed	01/23/2026	1117963828	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$14.89	08/23/2024	Food and Beverage	Undisputed	01/23/2026	1117963830	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.29	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1117963824	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.45	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1117963802	CMS
CALLIDITAS THERAPEUTICS US INC.	$20.74	01/08/2024	Food and Beverage	Undisputed	01/23/2026	1141507738	CMS
CALLIDITAS THERAPEUTICS US INC.	$24.19	03/22/2024	Food and Beverage	Undisputed	01/23/2026	1141512141	CMS
CALLIDITAS THERAPEUTICS US INC.	$22.97	09/30/2024	Food and Beverage	Undisputed	01/23/2026	1141523675	CMS
Esperion Therapeutics, Inc.	$18.60	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1129456264	CMS
Fresenius USA Marketing, Inc.	$26.13	01/12/2024	Food and Beverage	Undisputed	01/23/2026	1154194336	CMS
Fresenius USA Marketing, Inc.	$24.33	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1154194334	CMS
Gilead Sciences, Inc.	$18.04	07/25/2024	Food and Beverage	Undisputed	01/23/2026	1133826527	CMS
Gilead Sciences, Inc.	$13.88	08/22/2024	Food and Beverage	Undisputed	01/23/2026	1133826529	CMS
Gilead Sciences, Inc.	$22.31	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1133826531	CMS
GlaxoSmithKline, LLC.	$26.29	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1116492999	CMS
GlaxoSmithKline, LLC.	$23.36	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1116345034	CMS
IRONWOOD PHARMACEUTICALS, INC	$17.61	01/17/2024	Food and Beverage	Undisputed	01/23/2026	1153764218	CMS
IRONWOOD PHARMACEUTICALS, INC	$19.43	03/04/2024	Food and Beverage	Undisputed	01/23/2026	1153710919	CMS
Lexicon Pharmaceuticals, Inc.	$23.92	08/14/2024	Food and Beverage	Undisputed	01/23/2026	1081718204	CMS
Lilly USA, LLC	$28.61	02/14/2024	Food and Beverage	Undisputed	01/23/2026	1135194884	CMS
Lilly USA, LLC	$22.77	02/29/2024	Food and Beverage	Undisputed	01/23/2026	1135118379	CMS
Lilly USA, LLC	$22.34	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1135118381	CMS
Lilly USA, LLC	$24.99	06/19/2024	Food and Beverage	Undisputed	01/23/2026	1135194886	CMS
Merck Sharp & Dohme LLC	$34.31	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1141809512	CMS
Novartis Pharmaceuticals Corporation	$34.66	02/20/2024	Food and Beverage	Undisputed	01/23/2026	1087306873	CMS
Novartis Pharmaceuticals Corporation	$32.93	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1087306959	CMS
Novartis Pharmaceuticals Corporation	$24.89	04/23/2024	Food and Beverage	Undisputed	01/23/2026	1087306963	CMS
Novartis Pharmaceuticals Corporation	$34.66	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1087306965	CMS
Novartis Pharmaceuticals Corporation	$15.87	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1087306969	CMS
Novartis Pharmaceuticals Corporation	$17.13	07/30/2024	Food and Beverage	Undisputed	01/23/2026	1087306975	CMS
Novartis Pharmaceuticals Corporation	$26.83	09/10/2024	Food and Beverage	Undisputed	01/23/2026	1087306979	CMS
Novartis Pharmaceuticals Corporation	$28.34	09/11/2024	Food and Beverage	Undisputed	01/23/2026	1087306985	CMS
Novartis Pharmaceuticals Corporation	$22.10	09/22/2024	Food and Beverage	Undisputed	01/23/2026	1087306995	CMS
Novartis Pharmaceuticals Corporation	$24.63	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1087306991	CMS
Novo Nordisk Inc	$16.44	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1096890294	CMS
Novo Nordisk Inc	$21.51	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1097280820	CMS
Novo Nordisk Inc	$20.48	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1096822136	CMS
Novo Nordisk Inc	$22.87	08/16/2024	Food and Beverage	Undisputed	01/23/2026	1097353280	CMS
Novo Nordisk Inc	$22.97	09/27/2024	Food and Beverage	Undisputed	01/23/2026	1097420607	CMS
Novo Nordisk Inc	$27.89	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1096901145	CMS
Novo Nordisk Inc	$21.69	12/04/2024	Food and Beverage	Undisputed	01/23/2026	1096662927	CMS
Otsuka America Pharmaceutical, Inc.	$21.63	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1118986334	CMS
Otsuka America Pharmaceutical, Inc.	$23.72	03/01/2024	Food and Beverage	Undisputed	01/23/2026	1118986336	CMS
Otsuka America Pharmaceutical, Inc.	$21.44	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1118986338	CMS
Otsuka America Pharmaceutical, Inc.	$28.97	10/04/2024	Food and Beverage	Undisputed	01/23/2026	1118986340	CMS
Otsuka America Pharmaceutical, Inc.	$1.34	10/04/2024	Food and Beverage	Undisputed	01/23/2026	1118986342	CMS
Otsuka America Pharmaceutical, Inc.	$21.20	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1118986344	CMS
Otsuka America Pharmaceutical, Inc.	$25.19	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1118986346	CMS
Radius Health, Inc.	$34.48	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1089973285	CMS
Radius Health, Inc.	$27.72	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1089973281	CMS
Travere Therapeutics, Inc.	$3.08	02/21/2024	Education	Undisputed	01/23/2026	1149889276	CMS
Travere Therapeutics, Inc.	$16.89	02/21/2024	Education	Undisputed	01/23/2026	1149889280	CMS
Vifor Pharma, Inc.	$23.23	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1124041000	CMS
Vifor Pharma, Inc.	$28.46	03/18/2024	Food and Beverage	Undisputed	01/23/2026	1124046603	CMS
Vifor Pharma, Inc.	$27.58	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1124037827	CMS
Vifor Pharma, Inc.	$23.12	06/17/2024	Food and Beverage	Undisputed	01/23/2026	1124055893	CMS
Vifor Pharma, Inc.	$23.81	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1124055444	CMS
Vifor Pharma, Inc.	$29.33	10/02/2024	Food and Beverage	Undisputed	01/23/2026	1124058655	CMS
Vifor Pharma, Inc.	$16.00	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1124064185	CMS
Vifor Pharma, Inc.	$25.41	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1124062165	CMS
Vifor Pharma, Inc.	$26.12	12/10/2024	Food and Beverage	Undisputed	01/23/2026	1124064724	CMS
VIVUS LLC	$23.82	06/13/2024	Food and Beverage	Undisputed	01/23/2026	1129418265	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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