Quest Diagnostics
Laboratory Services • Mesquite, TX • Since 1967
About
- 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. - 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.
Clinic Type
Laboratory Services
Address
3230 I-30 East Suite 101 Mesquite, TX 75150
Phone
866.697.8378
Lifetimelabs@questdiagnostics.com
Opening Hours
7:00 am-5:00 pm (typical hours at location; also mentions other hours such as 8:00 am-12:00 pm and Closed for certain days in some contexts)
Services Offered
Insurance & Payment
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Languages Spoken
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Social Media
Photos



What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye (aggregating Google reviews): 3.4/5 stars (114 reviews)
Patients praise
- Professional and friendly staff members
- Efficient appointment process and short wait times for some patients
- Painless blood draws for some patients
- Convenient lab results turnaround
Common complaints
- Long wait times
- Poor customer service and difficulty reaching staff
- Issues with phlebotomy technique causing pain or bruising
- Frustrations with automated systems and lack of human interaction
- Billing and invoicing errors
"Phlebotomist was a bit rough, left tourniquet on when she dismissed me. I usually don’t bruise from the tape but both the site and tape job caused bruising this time around."
— Birdeye review"Valencia is very efficient and patient. My doctor's office forgot to send the requisition, and she waited patiently until the orders were sent."
— Birdeye reviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Dr. Marissa Spino-Keeton, DO - Pathologist in St George, UT — May 14, 2026
- 6945 Aliante Pkwy - North Las Vegas, NV | Quest — Jun 16, 2026
- 3801 W 15th St - Plano, TX | Quest — May 12, 2026
- 1505 W Wilshire Blvd - Burleson, TX | Quest — May 20, 2026
- 3945 Legacy Dr - Plano, TX | Quest — Jun 16, 2026
Information sourced from the clinic's website as of July 11, 2026.
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