Quest Diagnostics - Manassas

Laboratory Services • Manassas, VA • Since 1967

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About

Quest Diagnostics is a Fortune 500 American clinical laboratory and medical testing company (ticker DGX) founded in 1967 and headquartered in Secaucus, NJ. It provides diagnostic testing services across the United States, Puerto Rico, Mexico, and Brazil, with capabilities in medical testing, molecular diagnostics, and clinical chemistry. The company operates globally through hospital and clinic collaborations and employs about 14,319 people. Key figures (2024) show US$11.0B in annual revenue, US$14.4B market cap, and continued expansion in diagnostics services, including infectious diseases and cancer testing. For location-specific details in Manassas, VA, Quest Diagnostics has a broader national footprint but the page highlights its Secaucus, NJ headquarters and emphasis on nationwide services rather than a Manassas office. If you’re seeking a Quest Diagnostics location in Manassas, you may want to check their site for a local lab/collection center near Manassas, VA.

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Clinic Type

Laboratory Services

Address

8685 Sudley Rd Manassas, VA 20110

Phone

866.697.8378

Email

Lifetimelabs@questdiagnostics.com

Opening Hours

6:30 am-3:30 pm

Website

https://www.questdiagnostics.com/locations/detail.html/HOQ/20110/75/1

Services Offered

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Insurance & Payment

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Languages Spoken

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FAQs

What are the hours for this location?

6:30 am-3:30 pm (multiple entries shown for surrounding context)

Social Media

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Photos

What Patients Say

Overall sentiment across review platforms: mixed

Loc8NearMe: Generally positive among appointment holders (100+ (aggregated across various platforms))

Patients praise

Efficient and painless blood draws by skilled technicians
Positive experiences reported when booking appointments online in advance
Convenient location and availability of diverse testing services

Common complaints

Long wait times, particularly for walk-ins
Difficulty reaching human customer service or resolving issues with automated kiosks
Billing errors and confusing invoices
Occasional reports of disorganized staff or unclean facilities
Some patients report rough phlebotomy techniques resulting in bruising

"MAKE AN APPOINTMENT ONLINE! I did this an walked pass everyone else who’d been there waiting because they didn’t plan ahead."

— Unilocal user review

"Very disappointed with my experience.They closed the receptionist window—there is no human contact at all anymore. Everything is pushed to a machine, and it’s simply not working."

— Trustpilot user review

"The young blonde Asian girl with the tattoos who took care of me was professional, gentle and fast. She did a good job. I was nervous going in but the experience turned out to be just fine."

— Loc8NearMe user review

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].