Quest Diagnostics

Lab Testing at Alliance Screening & Occ Svcs

Quest partner location in Marion, IL 62959.

Partner Location

This location is part of Quest's partner network. Services and availability may differ from a standard Quest Patient Service Center. Please call 618-969-9384 before visiting to confirm they accept your lab order.

Order Lab Tests Online

Browse All Tests

Note: tests available at this location depend on its services. Confirm by calling before visiting.

Address

714 N Carbon St Ste 6
Marion, IL 62959
Williamson County

618-969-9384

Hours

Monday	8:00 AM – 3:00 PM
Tuesday	8:00 AM – 3:00 PM
Wednesday	8:00 AM – 3:00 PM
Thursday	8:00 AM – 3:00 PM
Friday	8:00 AM – 3:00 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

Quest Diagnostics - Marion Healthcare
3003 CIVic Circle Blvd, Marion, IL 62959
1.9 mi
Integrated Health - Employer Drug Testing Not Offered
303 S Commercial St Ste 10, Harrisburg, IL 62946
22.6 mi
Perry County Health Department - 3rd Party Draw Site
907 S Main St, Pinckneyville, IL 62274
33.2 mi
Quest Diagnostics - Mount Vernon Il
4 Cusumano Professional Plaza Dr Suite B, Mount Vernon, IL 62864
39.6 mi
Ssm Health Express Clinic Mt Vernon
602 S 42nd St, Mount Vernon, IL 62864
39.7 mi

About this location

Quest partner location. 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.