Quest Diagnostics Incorporated (NYSE: DGX) is a United States corporation which provides clinical laboratory services . The company has operations in the United Kingdom and Mexico, as well as service locations located in Brazil in addition to collaborative agreements internationally with various hospitals and clinics. ^[1] Quest Diagnostics also has operations in the US Territory of Puerto Rico. ^[2]

Quest Diagnostics is a member of the Fortune 500 and the S&P 500. The company's corporate headquarters were previously located in Teterboro, New Jersey where the largest business unit is located. Currently, the corporate headquarters are located in Madison, New Jersey^[3] having moved there in October 2007 from Lyndhurst, New Jersey.

History

• 1969: Founded as MetPath, Inc., in New York.
• 1982: MetPath was acquired by what was then known as Corning Glass Works, and subsequently renamed Corning Clinical Laboratories.
• 1997: Quest Diagnostics becomes an independent company as a spin-off from Corning.
• 1997: Acquires clinical laboratory division of Branford, CT-based Diagnostic Medical Laboratory, Inc. (DML)^[4].
• 1999: Acquires SmithKline Beecham Clinical Laboratories; GlaxoSmithKline still holds a large portion of Quest Diagnostics stock.
• 2001: Completes acquisition of Ohio-based MedPlus, Inc. (NASDAQ: MEDP), a healthcare technology company.
• 2002: Completes acquisition of Virginia-based American Medical Laboratories, Inc. (AML) and an affiliated company of AML, LabPortal, Inc., for approximately $500 million in cash.
• 2003: Completes acquisition of California-based Unilab Corporation (NASDAQ: ULAB) in a transaction valued at approximately $800 million .
• 2005: Completes acquisition of Kansas-based LabOne, Inc. (NASDAQ: LABS).
• 2006: Completes acquisition of Virginia-based Focus Diagnostics, Inc., an infectious and immunologic disease laboratory, for approximately $185 million in cash.
• 2007: Quest Diagnostics celebrates its 10th year after being spun off from Corning.
• 2007: Completes acquisition of Sweden-based Hemocue, a point-of-care diagnostic testing company.
• 2007: Acquires AmeriPath, becoming the leading provider of cancer diagnostic testing services.

Key Facts

• The nation's leading provider of diagnostic testing, information and services.
• Processed more than 151 million test requisitions in 2006.
• More than 33 regional laboratories in key U.S. markets, plus the UK and Mexico.
• Approximately 2,000 patient service centers.
• Revenues of approximately $6.3 billion in 2006.
• Leadership in gene-based and esoteric testing.
• Leadership in workplace drug testing.

Top Competitors

• Bio-Reference Laboratories
• Laboratory Corporation of America Holdings (LabCorp)

See also

• Medical technologist

External links

• Corporate web site
• MedPlus web site

References

1. ^ Quest Diagnostics: Our Growing International Presence http://www.questdiagnostics.com/brand/business/b_bus_lab_presence.html
2. ^ Quest Diagnostics: International Facilities & Operations http://www.questdiagnostics.com/brand/company/b_comp_intl_facilities.html
3. ^ 10/24/2007 News Release: Quest Diagnostics Reports Third Quarter Results. Note new location of press release http://phx.corporate-ir.net/phoenix.zhtml?c=82068&p=irol-newsArticle&ID=1066622&highlight=
4. ^ Quest Diagnostics Acquires Assets Of Diagnostics Medical Laboratory Inc. http://phx.corporate-ir.net/phoenix.zhtml?c=82068&p=irol-newsArticle&ID=199488&highlight=