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 345 federal civil lawsuits in this index, most often as a defendant (318 of 345). 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, Smith, and Jones.

345

Lawsuits

318

As Defendant

As Plaintiff

Open

326

Terminated

1996–2026

Span

9 mo

Median Duration

11 cases/yrNamed as defendant in 92% of cases44% Civil RightsRecent filings down

Cases by State

AK · 2

Open Cases Over Time

1996peak 32 open2026

Case Types Over Time

19962026

Civil RightsLaborContractPersonal Property / FraudFederal Tax / Statutory Actions

Filings by Year

19962026

Case Types filter →

Civil Rights151

Labor58

Contract47

Personal Property / Fraud36

Federal Tax / Statutory Actions18

RICO / Consumer / Other Statutes12

Where Filed filter →

Frequent Opposing Parties

345 Cases — Newest First

Brown v. Quest Diagnostics, LLC

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

Civil Rights Terminated District Court, C.D. CaliforniaNo. 2:08-cv-05364Filed 08/15/2008
Paul T Wertlake v. Quest Diagnostics Clinical Laboratories Inc

Labor Terminated District Court, C.D. CaliforniaNo. 5:08-cv-00968Filed 07/18/2008
Alegria Almero v. Quest Diagnostics Inc

Labor Terminated District Court, C.D. CaliforniaNo. 8:08-cv-00794Filed 07/18/2008
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
Prometheus Labs Inc v. Quest Diagnostics

Patent Terminated District Court, S.D. CaliforniaNo. 3:06-cv-00415Filed 02/23/2006
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
Bugsch v. Quest Diagnostics

Civil Rights Terminated District Court, S.D. CaliforniaNo. 3:05-cv-01420Filed 07/14/2005
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
Douglas Boyle v. Quest Diagnostics Incorporated

Civil Rights Terminated District Court, C.D. CaliforniaNo. 2:05-cv-03069Filed 04/26/2005
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
Portillo v. Quest Diagnostics

Contract Terminated District Court, W.D. TexasNo. 3:04-cv-00257Filed 07/02/2004
Marcum v. Quest Diagnostics, Inc

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

Civil Rights Terminated District Court, N.D. GeorgiaNo. 1:03-cv-03544Filed 11/21/2003
Wein v. Quest Diagnostics

Civil Rights Terminated District Court, S.D. FloridaNo. 2:03-cv-14210Filed 07/28/2003

Showing 251–300 of 345