Covered recipient · General Payments record

ZAKI A SAMMAN

Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

NPI: 1841295383
CMS profile: 356554
Location: FORT SMITH, AR

General Payments · PY2018–2024

$9,063.83

Reported across 583 records
CMS publication 2026-01-23

Latest program year · PY2024

$1,914.81

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	$1,881.16	112
Education	$33.65	3

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
PFIZER INC.	$242.47	21
Acerta Pharma LLC	$210.63	11
Daiichi Sankyo Inc.	$207.82	11
ABBVIE INC.	$193.72	11
GlaxoSmithKline, LLC.	$138.81	10
EISAI INC.	$85.70	4
Janssen Biotech, Inc.	$84.39	4
Merck Sharp & Dohme Corporation	$75.63	4
Lilly USA, LLC	$72.84	4
NOVARTIS PHARMACEUTICALS CORPORATION	$69.46	4
Celgene Corporation	$66.89	4
Sumitomo Pharma America, Inc.	$42.64	2
BeiGene USA, Inc.	$36.78	2
Regeneron Healthcare Solutions, Inc.	$36.56	2
Exelixis Inc.	$33.16	2
Incyte Corporation	$31.71	2
Gilead Sciences, Inc.	$30.74	2
Alexion Pharmaceuticals, Inc.	$20.92	1
Rigel Pharmaceuticals, Inc.	$20.13	1
SOBI, INC	$19.98	1
Tempus AI, Inc	$19.95	1
AVEO Pharmaceuticals, Inc.	$18.19	1
Stemline Therapeutics Inc.	$17.99	1
GENZYME CORPORATION	$17.97	1
PUMA BIOTECHNOLOGY, INC.	$16.71	1
Astellas Pharma US Inc	$16.50	1
Pharmacosmos Therapeutics Inc.	$15.47	1
ARRAY BIOPHARMA INC	$14.76	1
Geron Corporation	$14.48	1
TOLMAR, INC.	$14.33	1
PharmaEssentia USA Corporation	$14.13	1
JAZZ PHARMACEUTICALS INC.	$13.35	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$1,852.35	135
PY2019	$1,542.30	109
PY2020	$279.53	19
PY2021	$28.11	2
PY2022	$1,377.60	85
PY2023	$2,069.13	118
PY2024	$1,914.81	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
ABBVIE INC.	$17.17	01/24/2024	Food and Beverage	Undisputed	01/23/2026	1106009977	CMS
ABBVIE INC.	$13.77	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1106009979	CMS
ABBVIE INC.	$24.03	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1106009981	CMS
ABBVIE INC.	$22.81	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1106009983	CMS
ABBVIE INC.	$13.24	05/08/2024	Food and Beverage	Undisputed	01/23/2026	1106009985	CMS
ABBVIE INC.	$17.23	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1106009987	CMS
ABBVIE INC.	$16.30	09/04/2024	Food and Beverage	Undisputed	01/23/2026	1106009989	CMS
ABBVIE INC.	$20.44	10/01/2024	Food and Beverage	Undisputed	01/23/2026	1106009991	CMS
ABBVIE INC.	$17.48	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1106009993	CMS
ABBVIE INC.	$17.48	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1106009995	CMS
ABBVIE INC.	$13.77	12/23/2024	Food and Beverage	Undisputed	01/23/2026	1106009997	CMS
Alexion Pharmaceuticals, Inc.	$20.92	01/18/2024	Food and Beverage	Undisputed	01/23/2026	1093901331	CMS
ARRAY BIOPHARMA INC	$14.76	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1132000675	CMS
Astellas Pharma US Inc	$16.50	12/12/2024	Food and Beverage	Undisputed	01/23/2026	1139440830	CMS
AstraZeneca Pharmaceuticals LP	$13.49	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1105873649	CMS
AstraZeneca Pharmaceuticals LP	$21.65	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1105756205	CMS
AstraZeneca Pharmaceuticals LP	$15.29	03/19/2024	Food and Beverage	Undisputed	01/23/2026	1105681809	CMS
AstraZeneca Pharmaceuticals LP	$15.21	05/09/2024	Food and Beverage	Undisputed	01/23/2026	1105780352	CMS
AstraZeneca Pharmaceuticals LP	$45.56	06/12/2024	Food and Beverage	Undisputed	01/23/2026	1105667881	CMS
AstraZeneca Pharmaceuticals LP	$18.02	07/10/2024	Food and Beverage	Undisputed	01/23/2026	1104213749	CMS
AstraZeneca Pharmaceuticals LP	$17.21	07/23/2024	Food and Beverage	Undisputed	01/23/2026	1105899222	CMS
AstraZeneca Pharmaceuticals LP	$18.34	08/26/2024	Food and Beverage	Undisputed	01/23/2026	1104587966	CMS
AstraZeneca Pharmaceuticals LP	$16.00	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1104677483	CMS
AstraZeneca Pharmaceuticals LP	$14.96	09/27/2024	Food and Beverage	Undisputed	01/23/2026	1105879816	CMS
AstraZeneca Pharmaceuticals LP	$14.90	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1105858654	CMS
Aveo Pharmaceuticals, Inc.	$18.19	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1143488868	CMS
BeiGene USA, Inc.	$23.05	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1120862651	CMS
BeiGene USA, Inc.	$13.73	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1120862649	CMS
Celgene Corporation	$19.00	01/12/2024	Food and Beverage	Undisputed	01/23/2026	1101197228	CMS
Celgene Corporation	$20.08	10/14/2024	Food and Beverage	Undisputed	01/23/2026	1101197250	CMS
Celgene Corporation	$13.13	11/07/2024	Food and Beverage	Undisputed	01/23/2026	1101197252	CMS
Celgene Corporation	$14.68	12/02/2024	Food and Beverage	Undisputed	01/23/2026	1101197254	CMS
Daiichi Sankyo Inc.	$18.13	01/11/2024	Food and Beverage	Undisputed	01/23/2026	1089477859	CMS
Daiichi Sankyo Inc.	$21.59	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1089477857	CMS
Daiichi Sankyo Inc.	$19.51	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1089477855	CMS
Daiichi Sankyo Inc.	$8.69	05/09/2024	Food and Beverage	Undisputed	01/23/2026	1089477863	CMS
Daiichi Sankyo Inc.	$20.13	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1089477861	CMS
Daiichi Sankyo Inc.	$21.86	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1089477865	CMS
Daiichi Sankyo Inc.	$24.93	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1089477847	CMS
Daiichi Sankyo Inc.	$28.45	11/19/2024	Food and Beverage	Undisputed	01/23/2026	1089477845	CMS
Daiichi Sankyo Inc.	$26.02	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1089477849	CMS
Daiichi Sankyo Inc.	$3.85	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1089477851	CMS
Daiichi Sankyo Inc.	$14.66	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1089477853	CMS
Eisai Inc.	$21.41	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1110790198	CMS
Eisai Inc.	$24.08	05/20/2024	Food and Beverage	Undisputed	01/23/2026	1110790196	CMS
Eisai Inc.	$23.13	09/11/2024	Food and Beverage	Undisputed	01/23/2026	1110790194	CMS
Eisai Inc.	$17.08	11/11/2024	Food and Beverage	Undisputed	01/23/2026	1110790200	CMS
Exelixis Inc.	$16.41	01/08/2024	Food and Beverage	Undisputed	01/23/2026	1138567733	CMS
Exelixis Inc.	$16.75	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1138567735	CMS
GENZYME CORPORATION	$17.97	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1139642922	CMS
Geron Corporation	$14.48	12/04/2024	Food and Beverage	Undisputed	01/23/2026	1126533330	CMS
Gilead Sciences, Inc.	$15.30	01/04/2024	Food and Beverage	Undisputed	01/23/2026	1133832350	CMS
Gilead Sciences, Inc.	$15.44	03/07/2024	Food and Beverage	Undisputed	01/23/2026	1133832352	CMS
GlaxoSmithKline, LLC.	$15.39	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1116243918	CMS
GlaxoSmithKline, LLC.	$16.25	03/01/2024	Food and Beverage	Undisputed	01/23/2026	1116354293	CMS
GlaxoSmithKline, LLC.	$13.09	03/07/2024	Food and Beverage	Undisputed	01/23/2026	1116422687	CMS
GlaxoSmithKline, LLC.	$15.45	04/26/2024	Food and Beverage	Undisputed	01/23/2026	1116035750	CMS
GlaxoSmithKline, LLC.	$12.58	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1116242077	CMS
GlaxoSmithKline, LLC.	$14.77	06/14/2024	Food and Beverage	Undisputed	01/23/2026	1116335477	CMS
GlaxoSmithKline, LLC.	$13.19	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1116587373	CMS
GlaxoSmithKline, LLC.	$12.89	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1116091495	CMS
GlaxoSmithKline, LLC.	$11.59	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1116284608	CMS
GlaxoSmithKline, LLC.	$13.61	11/09/2024	Food and Beverage	Undisputed	01/23/2026	1116581331	CMS
Incyte Corporation	$15.42	08/30/2024	Food and Beverage	Undisputed	01/23/2026	1141257195	CMS
Incyte Corporation	$16.29	10/03/2024	Food and Beverage	Undisputed	01/23/2026	1141181148	CMS
Janssen Biotech, Inc.	$14.66	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1078268321	CMS
Janssen Biotech, Inc.	$17.74	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1078268275	CMS
Janssen Biotech, Inc.	$27.38	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1078267915	CMS
Janssen Biotech, Inc.	$24.61	12/20/2024	Food and Beverage	Undisputed	01/23/2026	1078268215	CMS
JAZZ PHARMACEUTICALS INC.	$13.35	07/01/2024	Food and Beverage	Undisputed	01/23/2026	1150234846	CMS
Lilly USA, LLC	$20.13	02/19/2024	Food and Beverage	Undisputed	01/23/2026	1135456513	CMS
Lilly USA, LLC	$18.14	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1135490980	CMS
Lilly USA, LLC	$17.76	08/05/2024	Food and Beverage	Undisputed	01/23/2026	1135512339	CMS
Lilly USA, LLC	$16.81	10/09/2024	Food and Beverage	Undisputed	01/23/2026	1135507128	CMS
Merck Sharp & Dohme LLC	$20.75	02/14/2024	Food and Beverage	Undisputed	01/23/2026	1141676283	CMS
Merck Sharp & Dohme LLC	$19.25	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1141677921	CMS
Merck Sharp & Dohme LLC	$17.83	09/03/2024	Food and Beverage	Undisputed	01/23/2026	1141677919	CMS
Merck Sharp & Dohme LLC	$17.80	11/20/2024	Food and Beverage	Undisputed	01/23/2026	1141677825	CMS
Novartis Pharmaceuticals Corporation	$17.07	03/15/2024	Food and Beverage	Undisputed	01/23/2026	1087223035	CMS
Novartis Pharmaceuticals Corporation	$13.36	08/14/2024	Food and Beverage	Undisputed	01/23/2026	1087223043	CMS
Novartis Pharmaceuticals Corporation	$21.17	09/18/2024	Food and Beverage	Undisputed	01/23/2026	1087223053	CMS
Novartis Pharmaceuticals Corporation	$17.86	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1087223055	CMS
PFIZER INC.	$9.32	01/18/2024	Food and Beverage	Undisputed	01/23/2026	1131358183	CMS
PFIZER INC.	$14.41	02/06/2024	Food and Beverage	Undisputed	01/23/2026	1131193472	CMS
PFIZER INC.	$21.43	02/19/2024	Food and Beverage	Undisputed	01/23/2026	1131282588	CMS
PFIZER INC.	$16.01	03/25/2024	Education	Undisputed	01/23/2026	1131602047	CMS
PFIZER INC.	$7.98	03/25/2024	Education	Undisputed	01/23/2026	1131805039	CMS
PFIZER INC.	$3.68	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1131903063	CMS
PFIZER INC.	$10.01	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1131306166	CMS
PFIZER INC.	$9.66	04/30/2024	Education	Undisputed	01/23/2026	1131821398	CMS
PFIZER INC.	$1.14	05/08/2024	Food and Beverage	Undisputed	01/23/2026	1131821304	CMS
PFIZER INC.	$15.33	05/14/2024	Food and Beverage	Undisputed	01/23/2026	1131315767	CMS
PFIZER INC.	$12.90	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1131794593	CMS
PFIZER INC.	$15.23	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1131903065	CMS
PFIZER INC.	$8.98	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1131839290	CMS
PFIZER INC.	$1.55	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1131831098	CMS
PFIZER INC.	$28.04	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1131360382	CMS
PFIZER INC.	$8.38	09/17/2024	Food and Beverage	Undisputed	01/23/2026	1131356505	CMS
PFIZER INC.	$6.02	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1131961614	CMS
PFIZER INC.	$21.31	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1131380664	CMS
PFIZER INC.	$13.92	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1131385839	CMS
PFIZER INC.	$0.20	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1131386962	CMS
PFIZER INC.	$16.97	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1131389161	CMS
Pharmacosmos Therapeutics Inc.	$15.47	02/09/2024	Food and Beverage	Undisputed	01/23/2026	1154825759	CMS
PharmaEssentia USA Corporation	$14.13	11/25/2024	Food and Beverage	Undisputed	01/23/2026	1137309706	CMS
PUMA BIOTECHNOLOGY, INC.	$16.71	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1113853742	CMS
Regeneron Healthcare Solutions, Inc.	$15.62	01/25/2024	Food and Beverage	Undisputed	01/23/2026	1114153815	CMS
Regeneron Healthcare Solutions, Inc.	$20.94	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1114153819	CMS
Rigel Pharmaceuticals, Inc.	$20.13	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1145209009	CMS
SOBI, INC	$19.98	12/10/2024	Food and Beverage	Undisputed	01/23/2026	1141412690	CMS
Stemline Therapeutics Inc.	$17.99	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1142966148	CMS
Sumitomo Pharma America, Inc.	$24.64	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1148913948	CMS
Sumitomo Pharma America, Inc.	$18.00	07/23/2024	Food and Beverage	Undisputed	01/23/2026	1148913950	CMS
Tempus AI, Inc	$19.95	08/05/2024	Food and Beverage	Undisputed	01/23/2026	1150173638	CMS
Tolmar, Inc.	$14.33	11/23/2024	Food and Beverage	Undisputed	01/23/2026	1138707807	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.