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Quest Diagnostics

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Lab testing, laboratory and office locations around the world

Quest Diagnostics has headquarters in the U.S. and operations in India, Ireland, and Mexico. Our products and services are used by customers in over 130 countries. We also collaborate with many international diagnostic laboratories, hospitals and clinics to help improve human health around the world.

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Quest Diagnostics - Gainesville

14370 Lee Highway,

Suite 101

Gainesville, VA 20155

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23.09 mi away

Schedule Appointment 703-754-9043
Monday: 8:00 am-4:00 pm
Tuesday: 8:00 am-4:00 pm
Wednesday: 8:00 am-4:00 pm
Thursday: 8:00 am-4:00 pm
Friday: 8:00 am-4:00 pm
Saturday: 7:30 am-10:30 am
Sunday: Closed
Quest Diagnostics - Manassas

8685 Sudley Rd,

Manassas, VA 20110

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29.69 mi away

Schedule Appointment 703-367-9470
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Winchester Amherst Street - Employer Drug Testing Not Offered

812 Amherst St,

Ste 100

Winchester, VA 22601

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32.9 mi away

Schedule Appointment 540-686-7217
Monday: 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Tuesday: 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Wednesday: 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Thursday: 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Friday: 7:00 am-12:30 pm , 1:30 pm-4:00 pm
Saturday: 7:00 am-10:00 am
Sunday: Closed
Quest Diagnostics - Stafford

608 Garrisonville Rd,

Suite 101

Stafford, VA 22554

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36.41 mi away

Schedule Appointment 540-659-2378
Monday: 6:30 am-2:30 pm
Tuesday: 6:30 am-2:30 pm
Wednesday: 6:30 am-2:30 pm
Thursday: 6:30 am-2:30 pm
Friday: 6:30 am-2:30 pm
Saturday: Closed
Sunday: Closed
Stafford Urgent Care - Stafford Primary Care

422 Garrisonville Rd,

Ste 101

Stafford, VA 22554

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36.92 mi away

540-647-9441
Monday: 9:00 am-5:00 pm
Tuesday: 9:00 am-5:00 pm
Wednesday: 9:00 am-5:00 pm
Thursday: 9:00 am-5:00 pm
Friday: 9:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Woodbridge Marblestone Drive

12731 Marblestone Dr,

Suite 100

Woodbridge, VA 22192

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37.01 mi away

Schedule Appointment 703-680-2162
Monday: 7:00 am-4:00 pm
Tuesday: 7:00 am-4:00 pm
Wednesday: 7:00 am-4:00 pm
Thursday: 7:00 am-4:00 pm
Friday: 7:00 am-4:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Ashburn

21785 Filigree Court,

Suite 204

Ashburn, VA 20147

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37.05 mi away

Schedule Appointment 571-223-0234
Monday: 7:30 am-3:30 pm
Tuesday: 7:30 am-3:30 pm
Wednesday: 7:30 am-3:30 pm
Thursday: 7:30 am-3:30 pm
Friday: 7:30 am-3:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Inside Fairfax Safeway Store - Employer Drug Testing Not Offered

12200 Fairfax Towne Ctr,

Fairfax, VA 22033

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37.26 mi away

Schedule Appointment 571-762-3217
Monday: 7:00 am-12:00 pm , 1:00 pm-3:30 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-3:30 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-3:30 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-3:30 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Leesburg

521 E. Market St,

Leesburg, VA 20176

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37.33 mi away

Schedule Appointment 703-777-7887
Monday: 7:30 am-12:00 pm , 1:00 pm-3:30 pm
Tuesday: 7:30 am-12:00 pm , 1:00 pm-3:30 pm
Wednesday: 7:30 am-12:00 pm , 1:00 pm-3:30 pm
Thursday: 7:30 am-12:00 pm , 1:00 pm-3:30 pm
Friday: 7:30 am-12:00 pm , 1:00 pm-3:30 pm
Saturday: 7:00 am-10:00 am
Sunday: Closed
Quest Diagnostics - Inside Burke Safeway Store

5727 Burke Centre Pkwy,

Burke, VA 22015

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38.79 mi away

Schedule Appointment 703-250-2211
Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Lansdowne

19415 Deerfield Avenue,

Suite 115B

Leesburg, VA 20176

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38.93 mi away

Schedule Appointment 703-729-6732
Monday: 7:30 am-11:30 am , 12:30 pm-4:00 pm
Tuesday: 7:30 am-11:30 am , 12:30 pm-4:00 pm
Wednesday: 7:30 am-11:30 am , 12:30 pm-4:00 pm
Thursday: 7:30 am-11:30 am , 12:30 pm-4:00 pm
Friday: 7:30 am-11:30 am , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Reston Safeway Store - Employer Drug Testing Not Offered

2304 Hunters Woods Plz,

Reston, VA 20191

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39.09 mi away

Schedule Appointment 703-390-9989
Monday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Tuesday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Wednesday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Thursday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Friday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fairfax Main Street

10721 Main Street,

Suite 1400

Fairfax, VA 22030

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39.66 mi away

Schedule Appointment 703-385-5670
Monday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:30 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Herndon

104 Elden St,

Ste 16

Herndon, VA 20170

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39.79 mi away

Schedule Appointment 703-435-3344
Monday: 7:00 am-3:30 pm
Tuesday: 7:00 am-3:30 pm
Wednesday: 7:00 am-3:30 pm
Thursday: 7:00 am-3:30 pm
Friday: 7:00 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Sterling

14 Pidgeon Hill Dr,

Ste 130

Sterling, VA 20165

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40.05 mi away

Schedule Appointment 703-444-4844
Monday: 7:30 am-3:30 pm
Tuesday: 7:30 am-3:30 pm
Wednesday: 7:30 am-3:30 pm
Thursday: 7:30 am-3:30 pm
Friday: 7:30 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fredericksburg Care Way

1011 Care Way,

Suite 101

Fredericksburg, VA 22401

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41.19 mi away

Schedule Appointment 540-706-9073
Monday: 7:00 am-3:30 pm
Tuesday: 7:00 am-3:30 pm
Wednesday: 7:00 am-3:30 pm
Thursday: 7:00 am-3:30 pm
Friday: 7:00 am-3:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Woodbridge Opitz Crossing

2080 Daniel Stuart Square,

Woodbridge, VA 22191

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41.32 mi away

Schedule Appointment 703-499-8156
Monday: 7:00 am-3:30 pm
Tuesday: 7:00 am-3:30 pm
Wednesday: 7:00 am-3:30 pm
Thursday: 7:00 am-3:30 pm
Friday: 7:00 am-3:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Stafford Primary Care - Stafford Primary Care

413 Chatham Sq Park,

Fredericksburg, VA 22405

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42.22 mi away

540-657-9441
Monday: 9:00 am-5:00 pm
Tuesday: 9:00 am-5:00 pm
Wednesday: 9:00 am-5:00 pm
Thursday: 9:00 am-5:00 pm
Friday: 9:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Prosperity Medical Center

8501 Arlington Blvd,

Suite 120

Fairfax, VA 22031

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43.91 mi away

Schedule Appointment 703-205-9686
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Annandale - Employer Drug Testing Not Offered

7617 Little River Turnpike,

Suite 700

Annandale, VA 22003

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44.95 mi away

Schedule Appointment 703-256-1213
Monday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Tuesday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Wednesday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Thursday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Friday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Massaponax Fredericksburg

4545 Spotsylvania Parkway,

Fredericksburg, VA 22408

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45.55 mi away

Schedule Appointment 540-898-2132
Monday: 6:30 am-4:00 pm
Tuesday: 6:30 am-4:00 pm
Wednesday: 6:30 am-4:00 pm
Thursday: 6:30 am-4:00 pm
Friday: 6:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside McLean Safeway Store - Anderson Rd

1688 Anderson Rd,

Mc Lean, VA 22102

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46.84 mi away

Schedule Appointment 571-531-2829
Monday: 7:30 am-12:00 pm , 12:30 pm-3:30 pm
Tuesday: 7:30 am-12:00 pm , 12:30 pm-3:30 pm
Wednesday: 7:30 am-12:00 pm , 12:30 pm-3:30 pm
Thursday: 7:30 am-12:00 pm , 12:30 pm-3:30 pm
Friday: 7:30 am-12:00 pm , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Harrisonburg

1657 E Market St,

Harrisonburg, VA 22801

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46.97 mi away

Schedule Appointment 929-762-0505
Monday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Fuller Court

6162 Fuller Ct,

Alexandria, VA 22310

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47.7 mi away

Schedule Appointment 703-924-1508
Monday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Tuesday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Wednesday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Thursday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Friday: 8:00 am-12:30 pm , 1:00 pm-4:00 pm
Saturday: 7:00 am-3:00 pm
Sunday: Closed
Quest Diagnostics - Carlin Springs

611 S Carlin Springs Road,

Suite 103

Arlington, VA 22204

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49.58 mi away

Schedule Appointment 703-933-3697
Monday: 8:00 am-4:30 pm
Tuesday: 8:00 am-4:30 pm
Wednesday: 8:00 am-4:30 pm
Thursday: 8:00 am-4:30 pm
Friday: 8:00 am-4:30 pm
Saturday: Closed
Sunday: Closed

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Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.