Quest Diagnostics

Lab Testing at Quest Diagnostics - Ashburn

Quest Diagnostics Patient Service Center in Ashburn, VA 20147.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

21785 Filigree Ct Suite 204
Ashburn, VA 20147
Loudoun County

571-223-0234

Hours

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

Nearby alternatives

LabCorp Ashburn
43490 Yukon Dr Suite 112, Ashburn, VA 20147
1.9 mi
LabCorp Sterling
21475 Ridgetop Cir Ste 110, Sterling, VA 20166
3 mi
Quest Diagnostics - Sterling
14 Pidgeon Hill Dr Ste 130, Sterling, VA 20165
3 mi
Cvs Minuteclinic - Sterling - 01427
110 Edds Ln, Sterling, VA 20165
3.1 mi
Carenow - Sterling
46200 Potomac Run Plz, Sterling, VA 20164
3.2 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.