YI CHEN

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family EMERYVILLE, CA NPI 1013621184

General Payments — all program years on this page

$6,198.59

Category: General Payments
Program years: PY2023–2024
Record count: 223
As of (CMS publication): 2026-01-23

Latest program year (PY2024): $3,554.54 across 141 records · disputed records: 0

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is 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

Latest program year (PY2024) · sorted by reported total.

Nature of payment	Amount	Records
Food and Beverage	$3,015.67	135
Education	$538.87	6

By paying entity

Latest program year (PY2024) · sorted by reported total.

Paying entity	Amount	Records
Astellas Pharma US Inc	$530.25	8
PFIZER INC.	$297.21	16
Acerta Pharma LLC	$236.68	10
Merck Sharp & Dohme Corporation	$232.86	8
NOVARTIS PHARMACEUTICALS CORPORATION	$179.66	7
Incyte Corporation	$175.40	6
Janssen Biotech, Inc.	$159.38	7
GlaxoSmithKline, LLC.	$140.01	10
Gilead Sciences, Inc.	$137.27	6
Takeda Pharmaceuticals U.S.A., Inc.	$134.99	11
E.R. Squibb & Sons, L.L.C.	$131.05	6
Celgene Corporation	$126.70	5
Genmab U.S., Inc.	$125.52	4
ABBVIE INC.	$81.08	4
EISAI INC.	$79.55	3
Daiichi Sankyo Inc.	$72.69	3
Regeneron Healthcare Solutions, Inc.	$65.50	2
GENZYME CORPORATION	$59.37	2
Deciphera Pharmaceuticals Inc.	$57.40	2
ARRAY BIOPHARMA INC	$54.20	2
Lilly USA, LLC	$51.36	2
EMD Serono, Inc.	$38.90	2
Stemline Therapeutics Inc.	$35.83	1
Geron Corporation	$32.71	1
Ipsen Biopharmaceuticals, Inc	$32.41	1
TAIHO ONCOLOGY, INC.	$31.67	1
Alexion Pharmaceuticals, Inc.	$31.07	1
Rigel Pharmaceuticals, Inc.	$31.07	2
Coherus Biosciences Inc.	$31.05	1
Pharmacosmos Therapeutics Inc.	$29.52	1
PUMA BIOTECHNOLOGY, INC.	$26.18	1
ImmunoGen, Inc.	$25.20	1
SOBI, INC	$25.08	1
RECORDATI_RARE_DISEASES_INC.	$21.90	1
Bayer HealthCare Pharmaceuticals Inc.	$19.75	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$14.07	1

By program year

Program year	Amount	Records
2023	$2,644.05	82
2024	$3,554.54	141

Records — PY2024 (141)

Record ID	Paying entity	Amount	Date	Nature of payment	Dispute status	Published	Source
1078294011	Janssen Biotech, Inc.	$24.61	11/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294013	Janssen Biotech, Inc.	$31.07	05/09/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294017	Janssen Biotech, Inc.	$1.78	11/06/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294021	Janssen Biotech, Inc.	$29.95	11/27/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294025	Janssen Biotech, Inc.	$22.35	11/08/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294033	Janssen Biotech, Inc.	$23.77	06/01/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1078294045	Janssen Biotech, Inc.	$25.85	06/27/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086359776	Bayer Healthcare Pharmaceuticals Inc.	$19.75	04/25/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689779	Novartis Pharmaceuticals Corporation	$15.91	01/29/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689781	Novartis Pharmaceuticals Corporation	$32.33	02/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689783	Novartis Pharmaceuticals Corporation	$31.73	02/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689785	Novartis Pharmaceuticals Corporation	$33.75	03/29/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689787	Novartis Pharmaceuticals Corporation	$25.53	06/17/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689789	Novartis Pharmaceuticals Corporation	$29.68	05/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1086689791	Novartis Pharmaceuticals Corporation	$10.73	06/11/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1089408108	Daiichi Sankyo Inc.	$21.83	10/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1089408112	Daiichi Sankyo Inc.	$22.25	11/06/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1089408182	Daiichi Sankyo Inc.	$28.61	08/21/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1091978004	Ipsen Biopharmaceuticals, Inc	$32.41	04/23/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1093920224	Alexion Pharmaceuticals, Inc.	$31.07	05/09/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1099941999	ImmunoGen, Inc.	$25.20	01/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101082283	Celgene Corporation	$30.00	02/08/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101082285	Celgene Corporation	$30.73	04/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101082287	Celgene Corporation	$27.07	05/13/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101082295	Celgene Corporation	$19.78	09/30/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101082297	Celgene Corporation	$19.12	10/14/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220254	E.R. Squibb & Sons, L.L.C.	$16.42	01/10/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220264	E.R. Squibb & Sons, L.L.C.	$21.01	07/08/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220272	E.R. Squibb & Sons, L.L.C.	$16.17	08/21/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220274	E.R. Squibb & Sons, L.L.C.	$30.52	09/11/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220276	E.R. Squibb & Sons, L.L.C.	$22.41	10/02/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1101220282	E.R. Squibb & Sons, L.L.C.	$24.52	11/11/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104239285	AstraZeneca Pharmaceuticals LP	$27.42	08/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104291790	AstraZeneca Pharmaceuticals LP	$24.53	07/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104336010	AstraZeneca Pharmaceuticals LP	$8.18	02/21/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104360467	AstraZeneca Pharmaceuticals LP	$17.27	02/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104490348	AstraZeneca Pharmaceuticals LP	$31.06	02/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104642885	AstraZeneca Pharmaceuticals LP	$21.21	07/29/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104662249	AstraZeneca Pharmaceuticals LP	$19.85	11/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1104783360	AstraZeneca Pharmaceuticals LP	$33.45	05/29/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1105711192	AstraZeneca Pharmaceuticals LP	$33.21	10/17/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1105779900	AstraZeneca Pharmaceuticals LP	$20.50	11/20/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1106909194	ABBVIE INC.	$16.66	02/28/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1106909196	ABBVIE INC.	$22.10	03/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1106909198	ABBVIE INC.	$22.56	07/14/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1106909200	ABBVIE INC.	$19.76	09/04/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1110825440	Eisai Inc.	$31.38	07/17/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1110825442	Eisai Inc.	$23.51	01/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1110825444	Eisai Inc.	$24.66	06/10/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1113852897	PUMA BIOTECHNOLOGY, INC.	$26.18	03/20/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1114283957	Regeneron Healthcare Solutions, Inc.	$33.58	02/14/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1114283959	Regeneron Healthcare Solutions, Inc.	$31.92	04/10/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1115813324	GlaxoSmithKline, LLC.	$21.94	06/14/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1115863255	GlaxoSmithKline, LLC.	$29.06	03/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1115897284	GlaxoSmithKline, LLC.	$18.65	12/19/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1115915209	GlaxoSmithKline, LLC.	$0.21	06/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116265134	GlaxoSmithKline, LLC.	$15.00	07/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116341776	GlaxoSmithKline, LLC.	$19.12	11/06/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116540001	GlaxoSmithKline, LLC.	$1.00	07/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116658728	GlaxoSmithKline, LLC.	$2.05	03/06/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116693711	GlaxoSmithKline, LLC.	$32.90	07/26/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1116723974	GlaxoSmithKline, LLC.	$0.08	03/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1117837708	Boehringer Ingelheim Pharmaceuticals, Inc.	$14.07	02/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1120263104	EMD Serono, Inc.	$16.49	09/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1120272898	EMD Serono, Inc.	$22.41	11/25/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1126533506	Geron Corporation	$32.71	12/11/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1126839722	Genmab U.S., Inc.	$25.95	01/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1126839724	Genmab U.S., Inc.	$34.49	03/28/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1126839726	Genmab U.S., Inc.	$38.81	06/29/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1126839728	Genmab U.S., Inc.	$26.27	10/28/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131278489	PFIZER INC.	$37.18	02/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131292348	PFIZER INC.	$6.33	03/05/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131293766	PFIZER INC.	$26.27	01/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131299593	PFIZER INC.	$34.42	01/19/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131307245	PFIZER INC.	$23.36	03/19/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131318328	PFIZER INC.	$3.09	04/17/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131335867	PFIZER INC.	$1.97	06/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131343100	PFIZER INC.	$27.15	07/01/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131347366	PFIZER INC.	$29.49	06/06/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131348529	PFIZER INC.	$27.26	06/26/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131348533	PFIZER INC.	$1.34	06/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131349735	PFIZER INC.	$3.00	06/05/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131354027	PFIZER INC.	$32.31	09/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131358477	PFIZER INC.	$2.64	09/25/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131361170	ARRAY BIOPHARMA INC	$21.62	09/19/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131726652	PFIZER INC.	$16.09	05/09/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131727963	PFIZER INC.	$25.31	04/12/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1131738185	ARRAY BIOPHARMA INC	$32.58	06/20/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699233	Gilead Sciences, Inc.	$23.91	03/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699235	Gilead Sciences, Inc.	$9.99	04/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699237	Gilead Sciences, Inc.	$21.10	04/25/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699239	Gilead Sciences, Inc.	$26.53	07/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699241	Gilead Sciences, Inc.	$29.84	09/27/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1133699243	Gilead Sciences, Inc.	$25.90	11/13/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1135974962	Lilly USA, LLC	$29.36	08/26/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1135991379	Lilly USA, LLC	$22.00	02/19/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1137942881	TAIHO ONCOLOGY, INC.	$31.67	09/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139168067	RECORDATI_RARE_DISEASES_INC.	$21.90	04/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139461006	Astellas Pharma US Inc	$99.95	07/18/2024	Education	Undisputed	01/23/2026	View at CMS
1139470824	Astellas Pharma US Inc	$23.17	07/11/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139502202	Astellas Pharma US Inc	$74.99	05/29/2024	Education	Undisputed	01/23/2026	View at CMS
1139504207	Astellas Pharma US Inc	$99.99	02/19/2024	Education	Undisputed	01/23/2026	View at CMS
1139526486	Astellas Pharma US Inc	$89.95	08/06/2024	Education	Undisputed	01/23/2026	View at CMS
1139526834	Astellas Pharma US Inc	$99.00	08/06/2024	Education	Undisputed	01/23/2026	View at CMS
1139545149	Astellas Pharma US Inc	$15.97	10/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139553287	Astellas Pharma US Inc	$27.23	10/31/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139972059	GENZYME CORPORATION	$29.20	04/08/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1139972087	GENZYME CORPORATION	$30.17	10/21/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141182010	Incyte Corporation	$74.99	10/07/2024	Education	Undisputed	01/23/2026	View at CMS
1141182684	Incyte Corporation	$16.46	03/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141220472	Incyte Corporation	$15.32	07/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141220636	Incyte Corporation	$20.57	07/26/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141221642	Incyte Corporation	$25.51	10/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141295888	Incyte Corporation	$22.55	04/28/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141441343	SOBI, INC	$25.08	05/05/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632145	Merck Sharp & Dohme LLC	$31.37	11/04/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632147	Merck Sharp & Dohme LLC	$28.45	09/25/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632149	Merck Sharp & Dohme LLC	$23.21	05/02/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632151	Merck Sharp & Dohme LLC	$29.30	04/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632153	Merck Sharp & Dohme LLC	$32.56	10/03/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141632155	Merck Sharp & Dohme LLC	$30.73	08/22/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141849758	Merck Sharp & Dohme LLC	$26.26	12/16/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1141921464	Merck Sharp & Dohme LLC	$30.98	03/20/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1142970921	Stemline Therapeutics Inc.	$35.83	10/30/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973384	Takeda Pharmaceuticals U.S.A., Inc.	$1.14	03/13/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973386	Takeda Pharmaceuticals U.S.A., Inc.	$22.49	03/13/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973388	Takeda Pharmaceuticals U.S.A., Inc.	$28.67	05/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973390	Takeda Pharmaceuticals U.S.A., Inc.	$1.40	05/15/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973392	Takeda Pharmaceuticals U.S.A., Inc.	$21.94	06/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973394	Takeda Pharmaceuticals U.S.A., Inc.	$1.50	06/07/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973396	Takeda Pharmaceuticals U.S.A., Inc.	$21.92	12/04/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973398	Takeda Pharmaceuticals U.S.A., Inc.	$0.70	12/04/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973400	Takeda Pharmaceuticals U.S.A., Inc.	$2.57	12/04/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973402	Takeda Pharmaceuticals U.S.A., Inc.	$31.34	12/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1144973404	Takeda Pharmaceuticals U.S.A., Inc.	$1.32	12/18/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1145200324	Rigel Pharmaceuticals, Inc.	$16.10	01/31/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1145202928	Rigel Pharmaceuticals, Inc.	$14.97	04/24/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1145876505	Deciphera Pharmaceuticals Inc.	$36.73	04/05/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1145876507	Deciphera Pharmaceuticals Inc.	$20.67	08/05/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1147276760	Coherus Biosciences Inc.	$31.05	10/23/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS
1154828223	Pharmacosmos Therapeutics Inc.	$29.52	01/26/2024	Food and Beverage	Undisputed	01/23/2026	View at CMS

Provenance & corrections

Dataset: CMS Open Payments — General Payments
Source: CMS Open Payments dataset (bulk file)
Publisher of source data: Centers for Medicare & Medicaid Services
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.