★★★☆☆3.4(114 reviews)
Mesquite, TX · Laboratory Services · Since 1967
- Quest Diagnostics is a Fortune 500 clinical laboratory company (NYSE: DGX) headquartered in Secaucus, NJ, founded in 1967.
- Core offerings: diagnostic testing and molecular/clinical chemistry services across infectious disease, cancer, cardiovascular, neurological conditions, COVID-19, and employment/drug testing.
- Global footprint: operates in the United States, Puerto Rico, Mexico, Brazil, and 42+ countries; collaborates with hospitals and clinics worldwide.
- Key metrics: about 14k–48k employees (varies by period), annual revenue around $11B, substantial assets and equity, and a market cap in the multi-tens of billions.
- Contact/branding: official site questdiagnostics.com; main phone +1-866-697-8378; wellness@questdiagnostics.com.
- Location note: Headquarters and main offices are in Secaucus, New Jersey (address: 500 Plaza Drive, Secaucus, NJ 07094).
User intent alignment (Mesquite focus):
For Mesquite, search for “Quest Diagnostics Mesquite TX” or contact the main number to locate the nearest facility or schedule a test.
Online bookingLaboratory ServicesClinical testing services