Covered recipient · General Payments record

YIFENG CHEN

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI: 1447518535
CMS profile: 3874947
Location: BETHLEHEM, PA

General Payments · PY2018–2024

$5,862.35

Reported across 284 records
CMS publication 2026-01-23

Latest program year · PY2024

$2,679.25

114 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	$2,597.85	112
Education	$81.40	2

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Acerta Pharma LLC	$662.51	30
GENZYME CORPORATION	$649.55	20
CSL Behring	$254.55	9
Takeda Pharmaceuticals U.S.A., Inc.	$232.56	11
Regeneron Healthcare Solutions, Inc.	$195.88	11
GlaxoSmithKline, LLC.	$176.75	9
OptiNose US, Inc.	$139.50	7
Amgen Inc.	$88.86	5
BioCryst US Sales Co., LLC	$83.13	3
Genentech USA, Inc.	$62.43	2
Kaleo, Inc.	$47.75	3
PFIZER INC.	$26.65	1
Medtronic, Inc.	$21.41	1
Phadia US Inc.	$20.99	1
Hikma Pharmaceuticals USA	$16.73	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$248.82	8
PY2019	$482.85	21
PY2020	$103.43	6
PY2021	$270.29	12
PY2022	$995.41	52
PY2023	$1,082.30	71
PY2024	$2,679.25	114

Payment records · PY2024 (114)

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
Amgen Inc.	$16.77	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1115497941	CMS
Amgen Inc.	$20.82	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1115497948	CMS
Amgen Inc.	$10.89	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1115497963	CMS
Amgen Inc.	$17.99	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1115497975	CMS
Amgen Inc.	$22.39	12/02/2024	Food and Beverage	Undisputed	01/23/2026	1115497997	CMS
AstraZeneca Pharmaceuticals LP	$14.73	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1104579956	CMS
AstraZeneca Pharmaceuticals LP	$23.74	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1105742894	CMS
AstraZeneca Pharmaceuticals LP	$15.83	03/13/2024	Food and Beverage	Undisputed	01/23/2026	1105679725	CMS
AstraZeneca Pharmaceuticals LP	$16.52	03/18/2024	Food and Beverage	Undisputed	01/23/2026	1105634718	CMS
AstraZeneca Pharmaceuticals LP	$15.69	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1104654551	CMS
AstraZeneca Pharmaceuticals LP	$17.94	04/02/2024	Food and Beverage	Undisputed	01/23/2026	1105872475	CMS
AstraZeneca Pharmaceuticals LP	$16.47	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1105432686	CMS
AstraZeneca Pharmaceuticals LP	$18.82	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1105281303	CMS
AstraZeneca Pharmaceuticals LP	$18.10	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1104500620	CMS
AstraZeneca Pharmaceuticals LP	$13.15	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1105499966	CMS
AstraZeneca Pharmaceuticals LP	$20.80	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1104279685	CMS
AstraZeneca Pharmaceuticals LP	$14.08	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1104377131	CMS
AstraZeneca Pharmaceuticals LP	$124.74	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1105246848	CMS
AstraZeneca Pharmaceuticals LP	$28.86	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1105520211	CMS
AstraZeneca Pharmaceuticals LP	$20.72	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1105712092	CMS
AstraZeneca Pharmaceuticals LP	$18.82	07/30/2024	Food and Beverage	Undisputed	01/23/2026	1105549812	CMS
AstraZeneca Pharmaceuticals LP	$26.95	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1104450198	CMS
AstraZeneca Pharmaceuticals LP	$17.95	08/20/2024	Food and Beverage	Undisputed	01/23/2026	1104224849	CMS
AstraZeneca Pharmaceuticals LP	$14.54	08/26/2024	Food and Beverage	Undisputed	01/23/2026	1104300514	CMS
AstraZeneca Pharmaceuticals LP	$18.82	08/27/2024	Food and Beverage	Undisputed	01/23/2026	1104662671	CMS
AstraZeneca Pharmaceuticals LP	$20.98	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1105780782	CMS
AstraZeneca Pharmaceuticals LP	$17.86	09/30/2024	Food and Beverage	Undisputed	01/23/2026	1105530184	CMS
AstraZeneca Pharmaceuticals LP	$18.44	10/07/2024	Food and Beverage	Undisputed	01/23/2026	1105717690	CMS
AstraZeneca Pharmaceuticals LP	$20.62	11/01/2024	Food and Beverage	Undisputed	01/23/2026	1105810501	CMS
AstraZeneca Pharmaceuticals LP	$22.52	11/18/2024	Education	Undisputed	01/23/2026	1104343130	CMS
AstraZeneca Pharmaceuticals LP	$14.95	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1104412463	CMS
AstraZeneca Pharmaceuticals LP	$14.01	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1105536702	CMS
AstraZeneca Pharmaceuticals LP	$14.55	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1105283523	CMS
AstraZeneca Pharmaceuticals LP	$14.90	12/10/2024	Food and Beverage	Undisputed	01/23/2026	1105867446	CMS
AstraZeneca Pharmaceuticals LP	$26.41	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1104261791	CMS
BioCryst US Sales Co., LLC	$21.23	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1117469511	CMS
BioCryst US Sales Co., LLC	$22.40	11/24/2024	Food and Beverage	Undisputed	01/23/2026	1117476484	CMS
BioCryst US Sales Co., LLC	$39.50	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1117481442	CMS
CSL Behring	$24.19	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1134633275	CMS
CSL Behring	$29.69	04/10/2024	Food and Beverage	Undisputed	01/23/2026	1134633277	CMS
CSL Behring	$34.56	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1134633281	CMS
CSL Behring	$26.63	06/13/2024	Food and Beverage	Undisputed	01/23/2026	1134605527	CMS
CSL Behring	$34.57	07/29/2024	Food and Beverage	Undisputed	01/23/2026	1134605537	CMS
CSL Behring	$25.32	09/04/2024	Food and Beverage	Undisputed	01/23/2026	1134605539	CMS
CSL Behring	$26.75	09/10/2024	Food and Beverage	Undisputed	01/23/2026	1134605541	CMS
CSL Behring	$25.03	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1134605549	CMS
CSL Behring	$27.81	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1134605631	CMS
Genentech USA, Inc.	$29.51	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1133135245	CMS
Genentech USA, Inc.	$32.92	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1133135250	CMS
GENZYME CORPORATION	$6.10	02/02/2024	Food and Beverage	Undisputed	01/23/2026	1139826972	CMS
GENZYME CORPORATION	$19.93	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1139826980	CMS
GENZYME CORPORATION	$124.99	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1139827028	CMS
GENZYME CORPORATION	$5.41	03/15/2024	Food and Beverage	Undisputed	01/23/2026	1139826986	CMS
GENZYME CORPORATION	$26.23	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1139826990	CMS
GENZYME CORPORATION	$23.71	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1139827002	CMS
GENZYME CORPORATION	$26.20	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1139827004	CMS
GENZYME CORPORATION	$31.29	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1139827008	CMS
GENZYME CORPORATION	$21.56	07/09/2024	Food and Beverage	Undisputed	01/23/2026	1139827014	CMS
GENZYME CORPORATION	$33.69	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1139827018	CMS
GENZYME CORPORATION	$26.74	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1139827194	CMS
GENZYME CORPORATION	$33.38	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1139827196	CMS
GENZYME CORPORATION	$28.09	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1139827198	CMS
GENZYME CORPORATION	$30.70	09/18/2024	Food and Beverage	Undisputed	01/23/2026	1139827202	CMS
GENZYME CORPORATION	$26.91	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1139827210	CMS
GENZYME CORPORATION	$23.34	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1139827220	CMS
GENZYME CORPORATION	$18.73	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1139827246	CMS
GENZYME CORPORATION	$32.54	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1139827230	CMS
GENZYME CORPORATION	$89.13	12/04/2024	Food and Beverage	Undisputed	01/23/2026	1139827250	CMS
GENZYME CORPORATION	$20.88	12/17/2024	Food and Beverage	Undisputed	01/23/2026	1139827244	CMS
GlaxoSmithKline, LLC.	$16.56	03/01/2024	Food and Beverage	Undisputed	01/23/2026	1116621659	CMS
GlaxoSmithKline, LLC.	$16.10	05/31/2024	Food and Beverage	Undisputed	01/23/2026	1115925157	CMS
GlaxoSmithKline, LLC.	$26.26	06/17/2024	Food and Beverage	Undisputed	01/23/2026	1116487369	CMS
GlaxoSmithKline, LLC.	$13.76	08/23/2024	Food and Beverage	Undisputed	01/23/2026	1116019593	CMS
GlaxoSmithKline, LLC.	$25.71	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1116474966	CMS
GlaxoSmithKline, LLC.	$14.96	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1116294739	CMS
GlaxoSmithKline, LLC.	$16.74	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1116547331	CMS
GlaxoSmithKline, LLC.	$27.12	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1116490004	CMS
GlaxoSmithKline, LLC.	$19.54	12/03/2024	Food and Beverage	Undisputed	01/23/2026	1116210200	CMS
Hikma Pharmaceuticals USA	$16.73	12/13/2024	Food and Beverage	Undisputed	01/23/2026	1127505871	CMS
kaleo, Inc.	$16.99	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1126631336	CMS
kaleo, Inc.	$14.80	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1126631338	CMS
kaleo, Inc.	$15.96	07/22/2024	Food and Beverage	Undisputed	01/23/2026	1126631340	CMS
Medtronic, Inc.	$21.41	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1119323519	CMS
Optinose US, Inc.	$11.25	01/12/2024	Food and Beverage	Undisputed	01/23/2026	1142184229	CMS
Optinose US, Inc.	$15.34	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1142184255	CMS
Optinose US, Inc.	$21.92	07/18/2024	Food and Beverage	Undisputed	01/23/2026	1142184275	CMS
Optinose US, Inc.	$23.35	10/03/2024	Food and Beverage	Undisputed	01/23/2026	1142184289	CMS
Optinose US, Inc.	$17.20	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1142184285	CMS
Optinose US, Inc.	$27.00	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1142184299	CMS
Optinose US, Inc.	$23.44	12/20/2024	Food and Beverage	Undisputed	01/23/2026	1142184297	CMS
PFIZER INC.	$26.65	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1131465138	CMS
Phadia US Inc.	$20.99	06/05/2024	Food and Beverage	Undisputed	01/23/2026	1067588256	CMS
Regeneron Healthcare Solutions, Inc.	$5.92	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1114023634	CMS
Regeneron Healthcare Solutions, Inc.	$15.56	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1114023636	CMS
Regeneron Healthcare Solutions, Inc.	$5.78	03/07/2024	Food and Beverage	Undisputed	01/23/2026	1114023638	CMS
Regeneron Healthcare Solutions, Inc.	$10.12	04/23/2024	Food and Beverage	Undisputed	01/23/2026	1114023640	CMS
Regeneron Healthcare Solutions, Inc.	$58.88	05/21/2024	Education	Undisputed	01/23/2026	1114023642	CMS
Regeneron Healthcare Solutions, Inc.	$10.47	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1114023644	CMS
Regeneron Healthcare Solutions, Inc.	$14.14	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1114023646	CMS
Regeneron Healthcare Solutions, Inc.	$27.15	08/14/2024	Food and Beverage	Undisputed	01/23/2026	1114023648	CMS
Regeneron Healthcare Solutions, Inc.	$15.90	09/25/2024	Food and Beverage	Undisputed	01/23/2026	1114023650	CMS
Regeneron Healthcare Solutions, Inc.	$14.93	10/16/2024	Food and Beverage	Undisputed	01/23/2026	1114023652	CMS
Regeneron Healthcare Solutions, Inc.	$17.03	11/20/2024	Food and Beverage	Undisputed	01/23/2026	1114023654	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$16.56	03/19/2024	Food and Beverage	Undisputed	01/23/2026	1137509496	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$11.76	05/08/2024	Food and Beverage	Undisputed	01/23/2026	1137509500	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$23.93	07/10/2024	Food and Beverage	Undisputed	01/23/2026	1137509504	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$32.61	07/25/2024	Food and Beverage	Undisputed	01/23/2026	1137509508	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$22.83	08/28/2024	Food and Beverage	Undisputed	01/23/2026	1137509512	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$28.18	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1137509516	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.71	10/02/2024	Food and Beverage	Undisputed	01/23/2026	1137509520	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$11.88	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1137509523	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$23.66	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1137509527	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$15.40	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1137509531	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$28.04	12/12/2024	Food and Beverage	Undisputed	01/23/2026	1137509534	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.