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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. 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.

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

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)

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].

Information sourced from the clinic's website as of July 11, 2026.

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ANY LAB TEST NOW is a wellness and fitness services company offering on-site or walk-in lab testing without a physician referral or insurance. Key points: - Services: thousands of standard health lab tests (general health, drugs & alcohol, DNA, STD, nutritional injections) with results typically in 24–72 hours. - Accessibility: no appointment needed; tests start at $49; hundreds of locations nationwide. - Locality: MANASSAS-specific query implies availability near Manassas, VA; nationwide network facilitates convenient testing without a doctor visit. - Details: Founded 1992; HQ in Atlanta, GA; privately held; operates across multiple locations in the U.S.

Online bookingSince 1992

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