Quest Diagnostics Incorporated (DGX)
NYSE: DGX · Real-Time Price · USD
195.60
+0.34 (0.17%)
At close: Mar 23, 2026, 4:00 PM EDT
195.40
-0.20 (-0.10%)
Pre-market: Mar 24, 2026, 8:36 AM EDT

Company Description

Quest Diagnostics Incorporated provides diagnostic testing and services in the United States.

The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services.

It also provides services under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers commercial clinical laboratories, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals.

In addition, the company offers risk assessment services for the life insurance industry; healthcare IT healthcare providers and payers; testing and medical director services at hospital laboratories; test offerings in cardiometabolic and endocrine; cancer; clinical drug monitoring and toxicology; infectious disease, including autoimmune; neurology diagnostics, including Alzheimer’s disease; and women’s health, such as prenatal genetic; workplace drug testing, testing urine, hair, and oral fluid specimens services; and employer population health services, including biometric screenings, flu shots, and related preventative services.

Further, it provides population health solutions; extended care services; develops in vitro diagnostic tests; laboratory diagnostic information and digital health connectivity systems; underwriting support services, including data gathering, paramedical examinations, and clinical laboratory testing and analytics; and national specimen collection and health data solutions.

Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.

Quest Diagnostics Incorporated
Quest Diagnostics logo
CountryUnited States
Founded1967
IPO DateDec 17, 1996
IndustryDiagnostics & Research
SectorHealthcare
Employees57,000
CEOJames Davis

Contact Details

Address:
500 Plaza Drive
Secaucus, New Jersey 07094
United States
Phone973 520 2700
Websitequestdiagnostics.com

Stock Details

Ticker SymbolDGX
ExchangeNYSE
Stock TypeCommon Stock
Fiscal YearJanuary - December
Reporting CurrencyUSD
CIK Code0001022079
CUSIP Number74834L100
ISIN NumberUS74834L1008
Employer ID16-1387862
SIC Code8071

Key Executives

NamePosition
James E. DavisChairman, Chief Executive Officer and President
Sam A. SamadExecutive Vice President and Chief Financial Officer
Michael E. Prevoznik J.D.Senior Vice President and General Counsel
Catherine T. DohertyExecutive Vice President of Regional Businesses
Karthik Kuppusamy Ph.D.Senior Vice President of Clinical Solutions
Michael J. DeppeSenior Vice President, Corporate Controller and Chief Accounting Officer
Murali BalakumarSenior Vice President and Chief Information and Digital Officer
Dan HaemmerleInterim Vice President of Investor Relations and VP Finance
Kristin Lee Wallace Esq.Senior Vice President and Chief Compliance Officer
Garry ClarkSenior Vice President and Chief Marketing and Communications Officer

Latest SEC Filings

DateTypeTitle
Mar 12, 20268-KCurrent Report
Mar 5, 2026144Filing
Mar 5, 2026144Filing
Mar 5, 2026144Filing
Mar 3, 2026144Filing
Mar 3, 2026144Filing
Mar 3, 2026144Filing
Mar 2, 2026144Filing
Feb 26, 202610-KAnnual Report
Feb 19, 2026144Filing