Quest Diagnostics is the world's leading provider of diagnostic information services, offering an extensive menu of laboratory tests for routine, advanced clinical, and anatomic pathology needs. The company serves half of U.S. physicians and hospitals, one in three American adults annually, and provides specialized testing for cancer, infectious diseases, cardiovascular conditions, neurology, and workplace drug screening. It holds a dominant market position as a Fortune 500 enterprise with operations in the U.S., Puerto Rico, Mexico, Brazil, and beyond.

Products & services

Clinical Laboratory Testing Laboratory diagnostic testing across more than 3,500 tests, supporting disease screening, diagnosis, monitoring, and treatment decisions for patients and healthcare providers.
Specialty and Advanced Diagnostic Testing Specialized testing services for oncology, genetics, neurology, transplant medicine, reproductive health, infectious disease, and other complex clinical conditions.
Patient Service Centers and Specimen Collection In-person and mobile specimen collection services that enable patients to complete ordered laboratory tests at Quest locations or through Quest Mobile.
QuestHealth.com Direct-to-Consumer Lab Tests An online marketplace where consumers can purchase 150 or more laboratory tests without a doctor visit for purchase, then complete testing at a Quest location.
MyQuest A patient-facing digital service for viewing laboratory results, managing appointments, tracking health history, and managing results for family members or people in a user’s care.
Quanum Lab Services Manager A web-based healthcare professional tool for ordering laboratory tests, viewing patient results, ordering supplies, and accessing laboratory utilization reports.

Leadership

James Davis Chief Executive Officer and President
Benjamin Beauvalot Senior Vice President, Chief Strategy, and M&A Officer
Angelo DiPreta Executive Sales Director
Catherine Doherty Executive Vice President of Regional Businesses
Paul Brown Founder

Seniority mix

Entry & junior 20%
Mid-level 0%
Senior 20%
Lead & principal 10%
Manager & above 50%

Based on 10 open roles

Where they hire

Secaucus, NJ 50%
Clifton, VA 20%
Lenexa, KS 20%
San Antonio, TX 10%

Based on 10 roles with a listed city

Brands & subsidiaries

Unilab Corporation Quest Diagnostics Nichols Institute PhenoPath Laboratories Pack Health MedPlus LifeLabs Labtech Diagnostics LabPortal LabOne Haystack Oncology

and 6 more

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