Quest Diagnostics
Lab Testing at Quest Diagnostics - Leesburg
Quest Diagnostics Patient Service Center in Leesburg, VA 20176.
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Address
521 E Market StLeesburg, VA 20176
Loudoun County
Hours
| Monday | 7:30 AM – 12:00, 13:00 |
| Tuesday | 7:30 AM – 12:00, 13:00 |
| Wednesday | 7:30 AM – 12:00, 13:00 |
| Thursday | 7:30 AM – 12:00, 13:00 |
| Friday | 7:30 AM – 12:00, 13:00 |
| Saturday | 7:00 AM – 10:00 AM |
| Sunday | Closed |
Nearby alternatives
- LabCorp Leesburg222 Catoctin Cir Se Ste 100, Leesburg, VA 201750.2 mi
- Quest Diagnostics - Lansdowne19415 Deerfield Ave Suite 115b, Leesburg, VA 201764.5 mi
- Any Lab Test Now Ashburn42775 Generation Dr Ste 100, Ashburn, VA 201475 mi
- LabCorp Ashburn20321 Susan Leslie Dr, Ashburn, VA 201475.2 mi
- LabCorp Ashburn43490 Yukon Dr Suite 112, Ashburn, VA 201477.6 mi
About this location
Quest Diagnostics Patient Service Center. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.
Listing last updated 2026-04-25.