Covered recipient · General Payments record

TAMMY LO

Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Acute Care

NPI: 1740595792
CMS profile: 10554423
Location: NORWALK, CT

General Payments · PY2021–2024

$3,658.17

Reported across 173 records
CMS publication 2026-01-23

Latest program year · PY2024

$1,997.17

97 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	$1,997.17	97

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Celgene Corporation	$246.52	13
ABBVIE INC.	$228.86	10
NOVARTIS PHARMACEUTICALS CORPORATION	$204.81	11
Rigel Pharmaceuticals, Inc.	$172.66	9
E.R. Squibb & Sons, L.L.C.	$147.09	8
Genentech USA, Inc.	$105.90	4
ARRAY BIOPHARMA INC	$93.57	4
Acerta Pharma LLC	$81.88	4
EISAI INC.	$79.01	3
Mirati Therapeutics, Inc.	$69.43	3
Incyte Corporation	$58.48	3
Bayer HealthCare Pharmaceuticals Inc.	$57.67	3
Astellas Pharma US Inc	$55.51	2
Regeneron Healthcare Solutions, Inc.	$53.00	3
Lilly USA, LLC	$52.61	2
Takeda Pharmaceuticals U.S.A., Inc.	$31.43	2
AVEO Pharmaceuticals, Inc.	$29.07	1
PharmaEssentia USA Corporation	$28.39	1
Merck Sharp & Dohme Corporation	$24.98	1
PFIZER INC.	$22.44	1
Stemline Therapeutics Inc.	$20.06	1
SERVIER PHARMACEUTICALS LLC	$19.86	1
Karyopharm Therapeutics Inc.	$18.18	1
ADC Therapeutics America, Inc.	$17.57	1
JAZZ PHARMACEUTICALS INC.	$17.36	1
EMD Serono, Inc.	$17.24	1
Daiichi Sankyo Inc.	$15.61	1
Janssen Biotech, Inc.	$14.68	1
PUMA BIOTECHNOLOGY, INC.	$13.30	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2021	$146.53	9
PY2022	$620.46	27
PY2023	$894.01	40
PY2024	$1,997.17	97

Payment records · PY2024 (97)

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

Program year 2024 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.	$21.69	03/01/2024	Food and Beverage	Undisputed	01/23/2026	1107548472	CMS
ABBVIE INC.	$24.58	03/23/2024	Food and Beverage	Undisputed	01/23/2026	1107548474	CMS
ABBVIE INC.	$25.53	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1107548476	CMS
ABBVIE INC.	$23.94	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1107548478	CMS
ABBVIE INC.	$22.07	07/09/2024	Food and Beverage	Undisputed	01/23/2026	1107548480	CMS
ABBVIE INC.	$31.66	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1107548482	CMS
ABBVIE INC.	$20.01	10/02/2024	Food and Beverage	Undisputed	01/23/2026	1107548484	CMS
ABBVIE INC.	$27.30	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1107548486	CMS
ABBVIE INC.	$18.68	11/22/2024	Food and Beverage	Undisputed	01/23/2026	1107548488	CMS
ABBVIE INC.	$13.40	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1107548490	CMS
ADC Therapeutics America, Inc.	$17.57	07/10/2024	Food and Beverage	Undisputed	01/23/2026	1121191605	CMS
ARRAY BIOPHARMA INC	$21.16	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1131294377	CMS
ARRAY BIOPHARMA INC	$24.85	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1131904477	CMS
ARRAY BIOPHARMA INC	$20.67	11/29/2024	Food and Beverage	Undisputed	01/23/2026	1131262823	CMS
ARRAY BIOPHARMA INC	$26.89	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1131397246	CMS
Astellas Pharma US Inc	$26.68	03/14/2024	Food and Beverage	Undisputed	01/23/2026	1139462332	CMS
Astellas Pharma US Inc	$28.83	05/15/2024	Food and Beverage	Undisputed	01/23/2026	1139508383	CMS
AstraZeneca Pharmaceuticals LP	$18.45	02/16/2024	Food and Beverage	Undisputed	01/23/2026	1105717275	CMS
AstraZeneca Pharmaceuticals LP	$18.15	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1105739420	CMS
AstraZeneca Pharmaceuticals LP	$20.08	05/09/2024	Food and Beverage	Undisputed	01/23/2026	1104307694	CMS
AstraZeneca Pharmaceuticals LP	$25.20	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1104533484	CMS
Aveo Pharmaceuticals, Inc.	$29.07	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1143499355	CMS
Bayer Healthcare Pharmaceuticals Inc.	$20.95	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1086344839	CMS
Bayer Healthcare Pharmaceuticals Inc.	$21.42	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1086310351	CMS
Bayer Healthcare Pharmaceuticals Inc.	$15.30	10/16/2024	Food and Beverage	Undisputed	01/23/2026	1086339125	CMS
Celgene Corporation	$18.12	01/29/2024	Food and Beverage	Undisputed	01/23/2026	1101097062	CMS
Celgene Corporation	$30.86	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1101097064	CMS
Celgene Corporation	$23.46	04/10/2024	Food and Beverage	Undisputed	01/23/2026	1101097072	CMS
Celgene Corporation	$0.25	04/10/2024	Food and Beverage	Undisputed	01/23/2026	1101097074	CMS
Celgene Corporation	$0.46	04/10/2024	Food and Beverage	Undisputed	01/23/2026	1101097076	CMS
Celgene Corporation	$28.47	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1101097070	CMS
Celgene Corporation	$32.30	05/08/2024	Food and Beverage	Undisputed	01/23/2026	1101097078	CMS
Celgene Corporation	$1.14	06/13/2024	Food and Beverage	Undisputed	01/23/2026	1101097086	CMS
Celgene Corporation	$26.72	06/13/2024	Food and Beverage	Undisputed	01/23/2026	1101097088	CMS
Celgene Corporation	$35.92	08/07/2024	Food and Beverage	Undisputed	01/23/2026	1101097092	CMS
Celgene Corporation	$21.44	09/27/2024	Food and Beverage	Undisputed	01/23/2026	1101097098	CMS
Celgene Corporation	$1.41	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1101097100	CMS
Celgene Corporation	$25.97	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1101097102	CMS
Daiichi Sankyo Inc.	$15.61	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1089449516	CMS
E.R. Squibb & Sons, L.L.C.	$2.64	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1101277355	CMS
E.R. Squibb & Sons, L.L.C.	$23.73	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1101277357	CMS
E.R. Squibb & Sons, L.L.C.	$14.46	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1101277367	CMS
E.R. Squibb & Sons, L.L.C.	$6.50	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1101277371	CMS
E.R. Squibb & Sons, L.L.C.	$20.12	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1101277373	CMS
E.R. Squibb & Sons, L.L.C.	$23.68	08/05/2024	Food and Beverage	Undisputed	01/23/2026	1101277375	CMS
E.R. Squibb & Sons, L.L.C.	$29.91	10/01/2024	Food and Beverage	Undisputed	01/23/2026	1101277389	CMS
E.R. Squibb & Sons, L.L.C.	$26.05	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1101277407	CMS
Eisai Inc.	$24.54	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1110823013	CMS
Eisai Inc.	$25.29	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1110823015	CMS
Eisai Inc.	$29.18	10/24/2024	Food and Beverage	Undisputed	01/23/2026	1110823017	CMS
EMD Serono, Inc.	$17.24	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1120228912	CMS
Genentech USA, Inc.	$17.17	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1133191089	CMS
Genentech USA, Inc.	$34.62	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1133191093	CMS
Genentech USA, Inc.	$30.49	08/06/2024	Food and Beverage	Undisputed	01/23/2026	1133191082	CMS
Genentech USA, Inc.	$23.62	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1133191085	CMS
Incyte Corporation	$25.52	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1141218908	CMS
Incyte Corporation	$16.67	03/14/2024	Food and Beverage	Undisputed	01/23/2026	1141182604	CMS
Incyte Corporation	$16.29	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1141182882	CMS
Janssen Biotech, Inc.	$14.68	12/31/2024	Food and Beverage	Undisputed	01/23/2026	1078375969	CMS
JAZZ PHARMACEUTICALS INC.	$17.36	05/22/2024	Food and Beverage	Undisputed	01/23/2026	1151313489	CMS
Karyopharm Therapeutics Inc.	$18.18	07/01/2024	Food and Beverage	Undisputed	01/23/2026	1145541740	CMS
Lilly USA, LLC	$29.69	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1135959601	CMS
Lilly USA, LLC	$22.92	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1135920484	CMS
Merck Sharp & Dohme LLC	$24.98	06/17/2024	Food and Beverage	Undisputed	01/23/2026	1141597462	CMS
Mirati Therapeutics, Inc.	$24.83	01/31/2024	Food and Beverage	Undisputed	01/23/2026	1117162765	CMS
Mirati Therapeutics, Inc.	$20.00	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1117162769	CMS
Mirati Therapeutics, Inc.	$24.60	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1117162773	CMS
Novartis Pharmaceuticals Corporation	$26.21	02/12/2024	Food and Beverage	Undisputed	01/23/2026	1086969552	CMS
Novartis Pharmaceuticals Corporation	$10.94	03/06/2024	Food and Beverage	Undisputed	01/23/2026	1086969556	CMS
Novartis Pharmaceuticals Corporation	$1.01	03/06/2024	Food and Beverage	Undisputed	01/23/2026	1086969558	CMS
Novartis Pharmaceuticals Corporation	$12.13	04/05/2024	Food and Beverage	Undisputed	01/23/2026	1086969560	CMS
Novartis Pharmaceuticals Corporation	$0.80	04/05/2024	Food and Beverage	Undisputed	01/23/2026	1086969562	CMS
Novartis Pharmaceuticals Corporation	$18.28	04/08/2024	Food and Beverage	Undisputed	01/23/2026	1086969566	CMS
Novartis Pharmaceuticals Corporation	$24.26	05/20/2024	Food and Beverage	Undisputed	01/23/2026	1086969568	CMS
Novartis Pharmaceuticals Corporation	$22.80	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1086969570	CMS
Novartis Pharmaceuticals Corporation	$31.69	11/11/2024	Food and Beverage	Undisputed	01/23/2026	1086969572	CMS
Novartis Pharmaceuticals Corporation	$27.59	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1086969574	CMS
Novartis Pharmaceuticals Corporation	$29.10	12/16/2024	Food and Beverage	Undisputed	01/23/2026	1086969578	CMS
PFIZER INC.	$22.44	02/14/2024	Food and Beverage	Undisputed	01/23/2026	1131272921	CMS
PharmaEssentia USA Corporation	$28.39	12/03/2024	Food and Beverage	Undisputed	01/23/2026	1137308766	CMS
PUMA BIOTECHNOLOGY, INC.	$13.30	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1113837600	CMS
Regeneron Healthcare Solutions, Inc.	$14.58	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1114333609	CMS
Regeneron Healthcare Solutions, Inc.	$17.47	03/04/2024	Food and Beverage	Undisputed	01/23/2026	1114333611	CMS
Regeneron Healthcare Solutions, Inc.	$20.95	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1114333613	CMS
Rigel Pharmaceuticals, Inc.	$23.45	01/08/2024	Food and Beverage	Undisputed	01/23/2026	1145198916	CMS
Rigel Pharmaceuticals, Inc.	$12.54	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1145198908	CMS
Rigel Pharmaceuticals, Inc.	$12.89	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1145198914	CMS
Rigel Pharmaceuticals, Inc.	$25.66	03/08/2024	Food and Beverage	Undisputed	01/23/2026	1145198956	CMS
Rigel Pharmaceuticals, Inc.	$13.63	06/14/2024	Food and Beverage	Undisputed	01/23/2026	1145198978	CMS
Rigel Pharmaceuticals, Inc.	$12.92	06/14/2024	Food and Beverage	Undisputed	01/23/2026	1145203303	CMS
Rigel Pharmaceuticals, Inc.	$22.72	07/03/2024	Food and Beverage	Undisputed	01/23/2026	1145204610	CMS
Rigel Pharmaceuticals, Inc.	$25.10	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1145204608	CMS
Rigel Pharmaceuticals, Inc.	$23.75	09/25/2024	Food and Beverage	Undisputed	01/23/2026	1145208453	CMS
SERVIER PHARMACEUTICALS LLC	$19.86	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1147268770	CMS
Stemline Therapeutics Inc.	$20.06	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1142970602	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.47	02/26/2024	Food and Beverage	Undisputed	01/23/2026	1144979080	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$13.96	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1144979082	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: 2021, 2022, 2023, 2024
Source files: Dataset page · Bulk file · PY2021 , PY2022 , PY2023 , PY2024
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.