Party · Healthcare Services

Quest Diagnostics Incorporated

Federal civil lawsuits naming Quest Diagnostics Incorporated, a Healthcare Services company.

Ticker: NYSE: DGX
Business: Services-Medical Laboratories
Headquarters: Secaucus, NJ
Incorporated in: Delaware
SEC CIK: 1022079

Quest Diagnostics Incorporated is a public company in Services-Medical Laboratories, based in Secaucus, NJ (traded on NYSE as DGX, incorporated in Delaware). It appears in 292 federal civil lawsuits in this index, most often as a defendant (266 of 292). These cases are most often Civil Rights and Labor matters, filed between 1996 and 2025, most frequently in District Court, D. New Jersey. Frequent opposing parties include Quest Diagnostics, Inc, Quest Diagnostics, and Quest Diagnostics Clinical Laboratories, Inc.

292

Lawsuits

266

As Defendant

As Plaintiff

Open

276

Terminated

1996–2025

Span

9 mo

Median Duration

9.7 cases/yrPredominantly defendant · 91%Civil Rights-heavy · 43%Activity declining

Cases by State

AK · 2

Open Cases Over Time

1996peak 30 open2025

Case Types Over Time

19962025

Civil RightsLaborContractPersonal Property / FraudFederal Tax / Statutory Actions

Filings by Year

19962025

Case Types filter →

Civil Rights126

Labor48

Contract41

Personal Property / Fraud33

Federal Tax / Statutory Actions15

RICO / Consumer / Other Statutes12

Where Filed filter →

Frequent Opposing Parties

Filtered Labor Clear

48 Cases — Newest First

Pope v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. VirginiaNo. 4:23-cv-00080Filed 06/19/2023
Morales v. Quest Diagnostics Incorporated

Labor Terminated District Court, D. New JerseyNo. 2:23-cv-00118Filed 01/10/2023
Brito v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. New YorkNo. 2:21-cv-07019Filed 12/20/2021
Black v. Quest Diagnostics Incorporated

Labor Terminated District Court, D. New JerseyNo. 2:21-cv-20066Filed 11/18/2021
Hagins v. Quest Diagnostics, LLC

Labor Terminated District Court, D. ConnecticutNo. 3:21-cv-01119Filed 08/20/2021
Thacker v. Quest Diagnostics, Inc

Labor Terminated District Court, D. AlaskaNo. 3:20-cv-00283Filed 11/06/2020
In Re Quest Diagnostics Erisa Litigation

Labor Terminated District Court, D. New JerseyNo. 2:20-cv-07936Filed 06/29/2020
Mills v. Quest Diagnostics Clinical Laboratories, Inc

Labor Terminated District Court, D. KansasNo. 2:20-cv-02042Filed 01/27/2020
Eire v. Quest Diagnostics

Labor Terminated District Court, S.D. FloridaNo. 1:19-cv-24426Filed 10/28/2019
Montgomery v. Quest Diagnostics Clinical Laboratories, Inc

Labor Terminated District Court, W.D. KentuckyNo. 3:19-cv-00566Filed 08/07/2019
Jones v. Quest Diagnostics Incorporated

Labor Terminated District Court, M.D. FloridaNo. 6:18-cv-00065Filed 01/12/2018
Ramirez v. Quest Diagnostics Incorporated

Labor Terminated District Court, M.D. FloridaNo. 8:17-cv-02882Filed 12/01/2017
Bailey v. Quest Diagnostics Inc

Labor Terminated District Court, E.D. VirginiaNo. 1:17-cv-00625Filed 05/31/2017
Helton v. Quest Diagnostics Clinical Laboratories, Inc

Labor Terminated District Court, W.D. MissouriNo. 4:17-cv-00365Filed 05/11/2017
Castano v. Quest Diagnostics Incorporated

Labor Terminated District Court, D. New JerseyNo. 2:17-cv-00696Filed 02/01/2017
Rodriguez v. Quest Diagnostics, Inc

Labor Terminated District Court, N.D. IllinoisNo. 1:16-cv-10010Filed 10/25/2016
Cauley v. Quest Diagnostics, Inc

Labor Terminated District Court, M.D. FloridaNo. 5:16-cv-00543Filed 08/31/2016
Greco v. Quest Diagnostics Incorporated

Labor Terminated District Court, D. New JerseyNo. 2:15-cv-01544Filed 03/02/2015
Ruhter v. Quest Diagnostics Clinical Laboratories, Inc

Labor Terminated District Court, W.D. TexasNo. 1:15-cv-00017Filed 01/12/2015
Greco v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. PennsylvaniaNo. 2:15-cv-00045Filed 01/07/2015
Wilson v. Quest Diagnostics, Inc

Labor Terminated District Court, E.D. PennsylvaniaNo. 2:14-cv-01441Filed 03/11/2014
Collins v. Quest Diagnostics Nichols Institute

Labor Terminated District Court, D. MarylandNo. 1:13-cv-01542Filed 05/28/2013
Evans v. Quest Diagnostics Clinical Laboratories, Inc

Labor Terminated District Court, N.D. GeorgiaNo. 1:13-cv-01295Filed 04/19/2013
Patient Care Associates LLC v. Quest Diagnostics Incorporated

Labor Terminated District Court, D. New JerseyNo. 2:13-cv-02399Filed 04/15/2013
Jones v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. PennsylvaniaNo. 2:12-cv-05064Filed 09/04/2012
Burgin v. Quest Diagnostics Clinical Laboratories Incorporated

Labor Terminated District Court, S.D. TexasNo. 4:12-cv-01205Filed 04/18/2012
Espinoza v. Quest Diagnostics Provider Network, LLC

Labor Terminated District Court, D. ColoradoNo. 1:11-cv-02477Filed 09/21/2011
Davis v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. MichiganNo. 2:11-cv-13871Filed 09/06/2011
Chirite v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. MichiganNo. 2:11-cv-13461Filed 08/09/2011
Myers v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. MichiganNo. 2:11-cv-13459Filed 08/09/2011
Balson v. Quest Diagnostics, Inc

Labor Terminated District Court, E.D. VirginiaNo. 4:11-cv-00098Filed 06/16/2011
Quest Diagnostics v. Bomani

Labor Terminated District Court, D. ConnecticutNo. 3:11-cv-00951Filed 06/14/2011
Honorat v. Quest Diagnostics, Incorporated

Labor Terminated District Court, M.D. FloridaNo. 8:11-cv-01231Filed 06/03/2011
Holmes v. Quest Diagnostics, Incorporated

Labor Terminated District Court, S.D. FloridaNo. 9:11-cv-80567Filed 05/16/2011
Bashore v. Quest Diagnostics Incorporated

Labor Terminated District Court, E.D. MichiganNo. 2:10-cv-14774Filed 12/01/2010
Miller v. Quest Diagnostics

Labor Terminated District Court, D. KansasNo. 2:10-cv-02061Filed 01/28/2010
Desrouleaux v. Quest Diagnostics, Inc

Labor Terminated District Court, S.D. FloridaNo. 0:09-cv-61672Filed 10/20/2009
Smith v. Quest Diagnostics, Incorporated

Labor Terminated District Court, E.D. MichiganNo. 2:09-cv-10103Filed 01/09/2009
Salemi v. Quest Diagnostics LLC

Labor Terminated District Court, D. ConnecticutNo. 3:07-cv-00754Filed 05/11/2007
Manuel v. Quest Diagnostics, Inc

Labor Terminated District Court, D. NevadaNo. 2:06-cv-00946Filed 08/03/2006
Estridge v. Quest Diagnostics, Inc

Labor Terminated District Court, E.D. LouisianaNo. 2:06-cv-01881Filed 04/12/2006
Young v. Quest Diagnostics

Labor Terminated District Court, S.D. FloridaNo. 0:05-cv-61824Filed 11/28/2005
Ball v. Quest Diagnostics in

Labor Terminated District Court, W.D. PennsylvaniaNo. 2:04-cv-01051Filed 07/16/2004
Marcum v. Quest Diagnostics, Inc

Labor Terminated District Court, W.D. MichiganNo. 1:04-cv-00360Filed 05/28/2004
Dubil v. Quest Diagnostics

Labor Terminated District Court, W.D. New YorkNo. 1:99-cv-00788Filed 10/13/1999
Gonzalez v. Quest Diagnostics

Labor Terminated District Court, N.D. FloridaNo. 1:98-cv-00199Filed 12/15/1998
Stuart v. Quest Diagnostics In

Labor Terminated District Court, E.D. VirginiaNo. 1:98-cv-01416Filed 09/29/1998
Young v. Quest Diagnostics

Labor Terminated District Court, E.D. MissouriNo. 4:97-cv-00558Filed 03/31/1997