Quest Diagnostics

Lab Testing at Quest Diagnostics - Mount Vernon Il

Quest Diagnostics Patient Service Center in Mount Vernon, IL 62864.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

4 Cusumano Professional Plaza Dr Suite B
Mount Vernon, IL 62864
Jefferson County

618-343-5735

Hours

Monday	7:00 AM – 12:00, 13:00
Tuesday	7:00 AM – 12:00, 13:00
Wednesday	7:00 AM – 12:00, 13:00
Thursday	7:00 AM – 12:00, 13:00
Friday	7:00 AM – 12:00 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

Ssm Health Express Clinic Mt Vernon
602 S 42nd St, Mount Vernon, IL 62864
0.1 mi
LabCorp Mount Vernon
3001 Broadway St, Mount Vernon, IL 62864
0.9 mi
Ssm Health Express Clinic Centralia
1003 E Mccord St, Centralia, IL 62801
17.9 mi
Salem Work Safety
1250 W Whittaker St, Salem, IL 62881
21.8 mi
Perry County Health Department - 3rd Party Draw Site
907 S Main St, Pinckneyville, IL 62274
28.9 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.