Company · 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 293 federal civil lawsuits in this index, most often as a defendant (267 of 293). These cases are most often Civil Rights and Labor matters, filed between 1996 and 2026, most frequently in District Court, D. New Jersey. The most common causes of action are Fraud, Employment, and Breach of Contract. Frequent opposing parties include Thomas, Jones, and White.

293

Lawsuits

267

As Defendant

As Plaintiff

Open

276

Terminated

1996–2026

Span

9 mo

Median Duration

9.5 cases/yrNamed as defendant in 91% of cases43% Civil RightsRecent filings down

Cases by State

AK · 2

Open Cases Over Time

1996peak 30 open2026

Case Types Over Time

19962026

Civil RightsLaborContractPersonal Property / FraudFederal Tax / Statutory Actions

Filings by Year

19962026

Case Types filter →

Civil Rights127

Labor48

Contract41

Personal Property / Fraud33

Federal Tax / Statutory Actions15

RICO / Consumer / Other Statutes12

Where Filed filter →

Frequent Opposing Parties

293 Cases — Newest First

Ross v. Quest Diagnostics, Inc

Federal Tax / Statutory Actions Terminated District Court, N.D. IllinoisNo. 1:09-cv-01229Filed 02/25/2009
Palumbo v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:09-cv-00538Filed 02/06/2009
Wash v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, S.D. FloridaNo. 0:09-cv-60068Filed 01/14/2009
Smith v. Quest Diagnostics, Incorporated

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

Civil Rights Terminated District Court, D. KansasFiled 12/30/2008
Thomas v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. KansasNo. 2:08-cv-02670Filed 12/30/2008
Wash v. Quest Diagnostics Laboratory

Civil Rights Terminated District Court, S.D. FloridaNo. 0:08-cv-61863Filed 11/19/2008
Harris v. Quest Diagnostics, LLC

Civil Rights Terminated District Court, N.D. IllinoisNo. 1:08-cv-06376Filed 11/06/2008
Depiano v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, N.D. AlabamaNo. 2:08-cv-01955Filed 10/21/2008
Shinn v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, D. New JerseyNo. 2:08-cv-04485Filed 09/08/2008
Brown v. Quest Diagnostics, LLC

Contract Terminated District Court, D. MassachusettsNo. 1:08-cv-11517Filed 09/05/2008
Tate v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:08-cv-03129Filed 07/02/2008
St. Jude Children's Research Hospital, Inc v. Quest Diagnostics Incorporated

Patent Terminated District Court, W.D. TennesseeNo. 2:08-cv-02299Filed 05/14/2008
Huff v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, W.D. PennsylvaniaNo. 2:08-cv-00632Filed 05/12/2008
Kinch v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. MassachusettsNo. 1:08-cv-10082Filed 01/18/2008
Kanter v. Quest Diagnostics Inc

Civil Rights Terminated District Court, N.D. TexasNo. 3:07-cv-01999Filed 11/30/2007
Quest Diagnostics Incorporated v. Factory Mutual Insurance Company

Contract Terminated District Court, E.D. LouisianaNo. 2:07-cv-03877Filed 07/27/2007
Quest Diagnostics Incorporated v. Vernaglia

Contract Terminated District Court, D. New JerseyNo. 2:07-cv-02631Filed 06/05/2007
Warren v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. New JerseyNo. 2:07-cv-02501Filed 05/29/2007
Warren v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. New JerseyNo. 2:07-cv-02470Filed 05/25/2007
Salemi v. Quest Diagnostics LLC

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

Contract Terminated District Court, N.D. IllinoisNo. 1:07-cv-02082Filed 04/13/2007
Rabb v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. NevadaNo. 2:06-cv-01609Filed 12/15/2006
Hession v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, D. MassachusettsNo. 1:06-cv-11454Filed 08/16/2006
Mogwitz v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, N.D. GeorgiaNo. 1:06-cv-01837Filed 08/03/2006
Manuel v. Quest Diagnostics, Inc

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

Civil Rights Terminated District Court, N.D. AlabamaNo. 2:06-cv-01183Filed 06/16/2006
Thomas v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, D. MarylandNo. 1:06-cv-01288Filed 05/19/2006
Estridge v. Quest Diagnostics, Inc

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

Contract Terminated District Court, D. New JerseyNo. 2:06-cv-00733Filed 02/17/2006
Young v. Quest Diagnostics

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

Contract Terminated District Court, D. NevadaNo. 2:05-cv-01181Filed 09/26/2005
Goldman v. Quest Diagnostics

Federal Tax / Statutory Actions Terminated District Court, S.D. FloridaNo. 9:05-cv-80743Filed 08/16/2005
Smith v. Quest Diagnostics

Civil Rights Terminated District Court, D. New JerseyNo. 2:05-cv-03868Filed 08/04/2005
Fair Laboratory Practices Associates v. Quest Diagnostics, Incorporated

Federal Tax / Statutory Actions Terminated District Court, S.D. New YorkNo. 1:05-cv-05393Filed 06/07/2005
Jones III v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, W.D. WashingtonNo. 2:05-cv-00765Filed 04/22/2005
Tanvir v. Quest Diagnostics

Civil Rights Terminated District Court, D. New JerseyNo. 2:05-cv-01464Filed 03/14/2005
Williams v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, S.D. New YorkNo. 7:05-cv-02624Filed 03/07/2005
Quest Diagnostics v. Datapool, Inc

Contract Terminated District Court, E.D. VirginiaNo. 3:05-cv-00082Filed 02/07/2005
Morgan v. Quest Diagnostics Clinical Laboratories, Inc

Civil Rights Terminated District Court, E.D. MissouriNo. 4:05-cv-00225Filed 02/03/2005
Williams v. Quest Diagnostics

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:05-cv-00430Filed 01/31/2005
Hagins v. Quest Diagnostics

Civil Rights Terminated District Court, D. New JerseyNo. 2:05-cv-00471Filed 01/24/2005
200 Boundary Associates, LLC v. Quest Diagnostics Incorporated

Contract Terminated District Court, E.D. New YorkFiled 12/28/2004
Lewis v. Quest Diagnostics, Inc

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:04-cv-05992Filed 12/23/2004
Cusumano v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, E.D. MissouriNo. 4:04-cv-01684Filed 12/03/2004
MacKinnon v. Quest Diagnostics Inc

Civil Rights Terminated District Court, S.D. OhioNo. 1:04-cv-00793Filed 11/22/2004
Bell v. Quest Diagnostics Inc

Civil Rights Terminated District Court, E.D. PennsylvaniaNo. 2:04-cv-05005Filed 10/25/2004
Calogridis v. Quest Diagnostics

Civil Rights Terminated District Court, D. New JerseyNo. 2:04-cv-04750Filed 09/29/2004
Grandalski v. Quest Diagnostics,inc

Contract Terminated District Court, D. New JerseyNo. 2:04-cv-04362Filed 09/03/2004
Ball v. Quest Diagnostics in

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

Showing 201–250 of 293