661 S Peace Rd,
Ste 101
Sycamore, IL 60178
Get Directions
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.
Looking for a facility or operation that is not a lab testing location?
US Facilities & Operations International Facilities & Operations
List
Map
2.44 mi away
Monday:
8:00 am-6:00 pm
Tuesday:
8:00 am-6:00 pm
Wednesday:
8:00 am-6:00 pm
Thursday:
8:00 am-6:00 pm
Friday:
8:00 am-6:00 pm
Saturday:
8:00 am-6:00 pm
Sunday:
8:00 am-6:00 pm
Quest Diagnostics - Elgin
885 S Randall Rd,
Elgin, IL 60123
Get Directions18.72 mi away
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
Tyler Medical Services (Preferred)
525 Tyler Road,
Saint Charles, IL 60174
Get Directions22.13 mi away
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
22.27 mi away
Monday:
7:00 am-3:00 pm
Tuesday:
7:00 am-3:00 pm
Wednesday:
7:00 am-3:00 pm
Thursday:
7:00 am-3:00 pm
Friday:
7:00 am-3:00 pm
Saturday:
7:00 am-12:00 pm
Sunday:
Closed
Quest Diagnostics - Rockford
641 Highgrove Pl,
Rockford, IL 61108
Get Directions23.19 mi away
Monday:
6:00 am-2:00 pm
Tuesday:
6:00 am-2:00 pm
Wednesday:
6:00 am-2:00 pm
Thursday:
6:00 am-2:00 pm
Friday:
6:00 am-2:00 pm
Saturday:
Closed
Sunday:
Closed
Route One Drug Test (Preferred)
207 Christina Dr,
East Dundee, IL 60118
Get Directions23.94 mi away
Monday:
8:00 am-5:00 pm
Tuesday:
8:00 am-5:00 pm
Wednesday:
8:00 am-5:00 pm
Thursday:
8:00 am-5:00 pm
Friday:
8:00 am-5:00 pm
Saturday:
9:00 am-1:00 pm
Sunday:
Closed
24.99 mi away
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-12:00 pm
Sunday:
Closed
Rockford Wellness Collective S.C. (Preferred)
4224 Maray Dr,
Rockford, IL 61107
Get Directions25.23 mi away
Monday:
8:00 am-5:00 pm
Tuesday:
8:00 am-5:00 pm
Wednesday:
8:00 am-5:00 pm
Thursday:
8:00 am-5:00 pm
Friday:
8:00 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
Quest Diagnostics - Rockford Riverside
5901 E Riverside Blvd,
Rockford, IL 61114
Get Directions26.64 mi away
Monday:
8:00 am-8:00 pm
Tuesday:
8:00 am-8:00 pm
Wednesday:
8:00 am-8:00 pm
Thursday:
8:00 am-8:00 pm
Friday:
8:00 am-8:00 pm
Saturday:
8:00 am-2:00 pm
Sunday:
Closed
Any Lab Test Now (Preferred)
6254 E Riverside Blvd,
Loves Parks, IL 61111
Get Directions26.67 mi away
Monday:
9:00 am-4:30 pm
Tuesday:
9:00 am-4:30 pm
Wednesday:
9:00 am-4:30 pm
Thursday:
9:00 am-4:30 pm
Friday:
9:00 am-4:30 pm
Saturday:
8:00 am-12:00 pm
Sunday:
Closed
27.62 mi away
Monday:
9:00 am-6:00 pm
Tuesday:
9:00 am-3:00 pm
Wednesday:
9:00 am-6:00 pm
Thursday:
9:00 am-6:00 pm
Friday:
9:00 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
27.63 mi away
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
29.15 mi away
Monday:
7:00 am-4:30 pm
Tuesday:
7:00 am-4:30 pm
Wednesday:
7:00 am-4:30 pm
Thursday:
7:00 am-4:30 pm
Friday:
7:00 am-4:30 pm
Saturday:
6:00 am-12:00 pm
Sunday:
Closed
29.8 mi away
Monday:
6:00 am-4:30 pm
Tuesday:
6:00 am-4:30 pm
Wednesday:
6:00 am-4:30 pm
Thursday:
6:00 am-4:30 pm
Friday:
6:00 am-4:30 pm
Saturday:
6:00 am-1:00 pm
Sunday:
Closed
31.23 mi away
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:
Closed
Sunday:
Closed
Glendale Heights Health Care Center (Preferred)
113 W Lake St,
Bloomingdale, IL 60108
Get Directions32.36 mi away
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:
8:00 am-12:00 pm
Sunday:
Closed
33.41 mi away
Monday:
5:30 am-3:30 pm
Tuesday:
5:30 am-3:30 pm
Wednesday:
5:30 am-3:30 pm
Thursday:
5:30 am-3:30 pm
Friday:
5:30 am-3:30 pm
Saturday:
6:00 am-1:00 pm
Sunday:
Closed
33.46 mi away
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:
7:00 am-1:00 pm
Sunday:
Closed
33.46 mi away
Monday:
7:00 am-5:00 pm
Tuesday:
7:00 am-5:00 pm
Wednesday:
7:00 am-5:00 pm
Thursday:
7:00 am-5:00 pm
Friday:
7:00 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
Quest Diagnostics - Inside Jewel Osco Palatine
423 E Dundee Rd,
Palatine, IL 60074
Get Directions35.82 mi away
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:
Closed
Sunday:
Closed
Quest Diagnostics - Lombard North
340 E North Ave,
Lombard, IL 60148
Get Directions36.78 mi away
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-12:00 pm
Sunday:
Closed
36.94 mi away
Monday:
7:00 am-3:00 pm
Tuesday:
7:00 am-3:00 pm
Wednesday:
7:00 am-3:00 pm
Thursday:
7:00 am-3:00 pm
Friday:
7:00 am-3:00 pm
Saturday:
7:00 am-12:30 pm
Sunday:
Closed
37.11 mi away
Monday:
8:00 am-6:00 pm
Tuesday:
8:00 am-6:00 pm
Wednesday:
8:00 am-6:00 pm
Thursday:
8:00 am-6:00 pm
Friday:
8:00 am-6:00 pm
Saturday:
8:00 am-12:00 pm
Sunday:
Closed
Elmhurst Mem Addison Hlth Ctr (Preferred)
303 W Lake St,
Addison, IL 60101
Get Directions37.13 mi away
Monday:
8:30 am-5:00 pm
Tuesday:
8:30 am-5:00 pm
Wednesday:
8:30 am-5:00 pm
Thursday:
8:30 am-5:00 pm
Friday:
8:30 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
OSF Occupational Health Mendota (Preferred)
1401 E 12Th St,
Mendota, IL 61342
Get Directions38.25 mi away
Monday:
8:00 am-3:30 pm
Tuesday:
8:00 am-3:30 pm
Wednesday:
8:00 am-3:30 pm
Thursday:
8:00 am-3:30 pm
Friday:
8:00 am-3:30 pm
Saturday:
Closed
Sunday:
Closed
MasterMed, LLC- Bensenville (Preferred)
1286 Mark St,
Bensenville, IL 60106
Get Directions38.59 mi away
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
NovaMed Urgent Care (Preferred)
1717 W Algonquin Rd,
Mount Prospect, IL 60056
Get Directions38.59 mi away
Monday:
8:00 am-6:00 pm
Tuesday:
8:00 am-6:00 pm
Wednesday:
8:00 am-6:00 pm
Thursday:
8:00 am-6:00 pm
Friday:
8:00 am-6:00 pm
Saturday:
8:00 am-6:00 pm
Sunday:
Closed
39.3 mi away
Monday:
11:30 am-5:00 pm
Tuesday:
11:30 am-5:00 pm
Wednesday:
11:30 am-5:00 pm
Thursday:
11:30 am-5:00 pm
Friday:
11:30 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
39.31 mi away
Monday:
Vary
Tuesday:
Vary
Wednesday:
Vary
Thursday:
Vary
Friday:
Vary
Saturday:
Vary
Sunday:
Vary
39.66 mi away
Monday:
7:00 am-4:30 pm
Tuesday:
7:00 am-4:30 pm
Wednesday:
7:00 am-4:30 pm
Thursday:
7:00 am-4:30 pm
Friday:
7:00 am-4:30 pm
Saturday:
9:00 am-1:00 pm
Sunday:
Closed
Fastest Labs of NW Chicago (Preferred)
1402 Elmhurst Rd,
Elk Grove Village, IL 60007
Get Directions39.67 mi away
Monday:
9:30 am-7:00 pm
Tuesday:
9:00 am-7:00 pm
Wednesday:
9:30 am-3:00 pm , 5:00 pm-7:00 pm
Thursday:
9:30 am-7:00 pm
Friday:
9:30 am-4:00 pm
Saturday:
10:00 am-2:00 pm
Sunday:
Closed
Quest Diagnostics - Downers Grove
1113 Fairview Ave,
Westmont, IL 60559
Get Directions40.46 mi away
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:
6:30 am-12:00 pm
Sunday:
Closed
40.63 mi away
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:
Closed
Sunday:
Closed
41.4 mi away
Monday:
7:00 am-5:00 pm
Tuesday:
7:00 am-5:00 pm
Wednesday:
7:00 am-5:00 pm
Thursday:
7:00 am-5:00 pm
Friday:
7:00 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
41.46 mi away
Monday:
8:00 am-8:00 pm
Tuesday:
8:00 am-8:00 pm
Wednesday:
8:00 am-8:00 pm
Thursday:
8:00 am-8:00 pm
Friday:
8:00 am-8:00 pm
Saturday:
9:00 am-5:00 pm
Sunday:
9:00 am-5:00 pm
41.63 mi away
Monday:
8:30 am-3:00 pm
Tuesday:
8:30 am-3:00 pm
Wednesday:
8:30 am-3:00 pm
Thursday:
8:30 am-3:00 pm
Friday:
8:30 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
42.62 mi away
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
CWP Express Care/Corp Wellness Prtnrs (Preferred)
716 S Milwaukee Ave,
Libertyville, IL 60048
Get Directions43.05 mi away
Monday:
7:30 am-5:00 pm
Tuesday:
7:30 am-5:00 pm
Wednesday:
7:30 am-5:00 pm
Thursday:
7:30 am-5:00 pm
Friday:
7:30 am-5:00 pm
Saturday:
Closed
Sunday:
Closed
43.49 mi away
Monday:
7:00 am-6:00 pm
Tuesday:
7:00 am-6:00 pm
Wednesday:
7:00 am-6:00 pm
Thursday:
7:00 am-6:00 pm
Friday:
7:00 am-6:00 pm
Saturday:
8:00 am-12:00 pm
Sunday:
Closed
Value Lab, LLC (Preferred)
832 N Galena Ave,
Dixon, IL 61021
Get Directions43.74 mi away
Monday:
7:00 am-4:00 am
Tuesday:
7:00 am-4:00 am
Wednesday:
7:00 am-4:00 am
Thursday:
7:00 am-4:00 am
Friday:
7:00 am-4:00 am
Saturday:
Closed
Sunday:
Closed
Workforce Wellness & Compliance (Preferred)
201 Lincoln Statue Dr,
Dixon, IL 61021
Get Directions43.79 mi away
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
Chicagoland Drug Testing (Preferred)
93 Caterpillar Dr,
Joliet, IL 60436
Get Directions44.58 mi away
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:
Vary
Sunday:
Vary
44.67 mi away
Monday:
7:00 am-3:00 pm
Tuesday:
7:00 am-3:00 pm
Wednesday:
7:00 am-3:00 pm
Thursday:
7:00 am-3:00 pm
Friday:
7:00 am-3:00 pm
Saturday:
7:00 am-12:00 pm
Sunday:
Closed
OSF OnCall UC- Ottawa (Preferred)
2911 Columbus St,
Ottawa, IL 61350
Get Directions45.06 mi away
Monday:
8:00 am-6:00 pm
Tuesday:
8:00 am-6:00 pm
Wednesday:
8:00 am-6:00 pm
Thursday:
8:00 am-6:00 pm
Friday:
8:00 am-6:00 pm
Saturday:
8:00 am-6:00 pm
Sunday:
8:00 am-6:00 pm
45.27 mi away
Monday:
10:30 am-6:00 pm
Tuesday:
10:30 am-6:00 pm
Wednesday:
10:30 am-5:00 pm
Thursday:
10:30 am-1:00 pm
Friday:
10:30 am-4:00 pm
Saturday:
7:00 am-12:00 pm
Sunday:
Closed
45.33 mi away
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:
10:00 am-2:00 pm
Sunday:
10:00 am-2:00 pm
Metro Urgent Care 3, INC (Preferred)
125 N La Grange Rd,
La Grange, IL 60525
Get Directions45.49 mi away
Monday:
9:00 am-6:00 pm
Tuesday:
9:00 am-6:00 pm
Wednesday:
9:00 am-6:00 pm
Thursday:
9:00 am-6:00 pm
Friday:
9:00 am-6:00 pm
Saturday:
Closed
Sunday:
Closed
Local MD - Melrose Park (Preferred)
600 W North Ave,
Melrose Park, IL 60160
Get Directions45.52 mi away
Monday:
8:00 am-8:00 pm
Tuesday:
8:00 am-8:00 pm
Wednesday:
8:00 am-8:00 pm
Thursday:
8:00 am-8:00 pm
Friday:
8:00 am-8:00 pm
Saturday:
9:00 am-5:00 pm
Sunday:
9:00 am-5:00 pm
La Grange Medical Center (Preferred)
911 West 55Th Street,
Countryside, IL 60525
Get Directions45.63 mi away
Monday:
9:00 am-4:00 pm
Tuesday:
9:00 am-4:00 pm
Wednesday:
9:00 am-4:00 pm
Thursday:
9:00 am-4:00 pm
Friday:
9:00 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
45.84 mi away
Monday:
7:00 am-1:30 pm
Tuesday:
7:00 am-1:30 pm
Wednesday:
7:00 am-1:30 pm
Thursday:
7:00 am-1:30 pm
Friday:
7:00 am-1:30 pm
Saturday:
Closed
Sunday:
Closed
Lockport Express Medical (Preferred)
16221 W 159Th St,
Lockport, IL 60441
Get Directions46.01 mi away
Monday:
8:00 am-5:00 pm
Tuesday:
8:00 am-5:00 pm
Wednesday:
8:00 am-5:00 pm
Thursday:
8:00 am-5:00 pm
Friday:
8:00 am-5:00 pm
Saturday:
9:00 am-1:00 pm
Sunday:
9:00 am-1:00 pm
OSF Occupational Health Ottawa (Preferred)
1614 E Norris Dr,
Ottawa, IL 61350
Get Directions46.19 mi away
Monday:
8:00 am-3:30 pm
Tuesday:
8:00 am-3:30 pm
Wednesday:
8:00 am-3:30 pm
Thursday:
8:00 am-3:30 pm
Friday:
8:00 am-3:30 pm
Saturday:
Closed
Sunday:
Closed
46.34 mi away
Monday:
8:00 am-6:00 pm
Tuesday:
8:00 am-6:00 pm
Wednesday:
8:00 am-6:00 pm
Thursday:
8:00 am-4:00 pm
Friday:
8:00 am-6:00 pm
Saturday:
8:00 am-6:00 pm
Sunday:
8:00 am-6:00 pm
46.41 mi away
Monday:
7:00 am-3:00 pm
Tuesday:
7:00 am-3:00 pm
Wednesday:
7:00 am-3:00 pm
Thursday:
7:00 am-3:00 pm
Friday:
7:00 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
Alia Drug Testing, LLC (Preferred)
7036 W Belmont Ave,
Chicago, IL 60634
Get Directions47.28 mi away
Monday:
9:00 am-4:00 pm
Tuesday:
9:00 am-4:00 pm
Wednesday:
9:00 am-4:00 pm
Thursday:
9:00 am-4:00 pm
Friday:
9:00 am-3:00 pm
Saturday:
Closed
Sunday:
Closed
Xpress Pro Labs (Preferred)
6449 DEMPSTER ST,
MORTON GROVE, IL 60053
Get Directions47.82 mi away
Monday:
8:30 am-4:00 pm
Tuesday:
8:30 am-4:00 pm
Wednesday:
8:30 am-4:00 pm
Thursday:
8:30 am-4:00 pm
Friday:
8:30 am-4:00 pm
Saturday:
Closed
Sunday:
Closed
48.19 mi away
Monday:
5:30 am-3:30 pm
Tuesday:
5:30 am-3:30 pm
Wednesday:
5:30 am-3:30 pm
Thursday:
5:30 am-3:30 pm
Friday:
5:30 am-3:30 pm
Saturday:
7:00 am-12:00 pm
Sunday:
Closed
48.45 mi away
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:
10:00 am-2:00 pm
Sunday:
10:00 am-2:00 pm
PromptMed UC - Waukegan (Preferred)
724 N Green Bay Rd,
Waukegan, IL 60085
Get Directions49.33 mi away
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:
10:00 am-2:00 pm
Sunday:
10:00 am-2:00 pm
Metro Urgent Care, Inc. (Preferred)
5406 W Fullerton Ave,
Chicago, IL 60639
Get Directions49.56 mi away
Monday:
7:00 am-7:00 pm
Tuesday:
7:00 am-7:00 pm
Wednesday:
7:00 am-7:00 pm
Thursday:
7:00 am-7:00 pm
Friday:
7:00 am-7:00 pm
Saturday:
8:00 am-12:00 pm
Sunday:
Closed
49.86 mi away
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:
7:00 am-1:00 pm
Sunday:
Closed
Quest Diagnostics - Parkway Plaza
4126 N Milwaukee Ave,
Chicago, IL 60641
Get Directions49.92 mi away
Monday:
6:00 am-3:30 pm
Tuesday:
6:00 am-3:30 pm
Wednesday:
6:00 am-3:30 pm
Thursday:
6:00 am-3:30 pm
Friday:
6:00 am-3:30 pm
Saturday:
7:00 am-12:00 pm
Sunday:
Closed
Our focus on your safety
Our safety precautions help ensure your confidence and comfort while visiting our Patient Service Centers to get the testing you need, today and every day.
- Site map
- Privacy Notices
- Terms
- Contact us
- Language assistance / non-discrimination
- Asistencia de idiomas / Aviso de no discriminación
- 語言協助 / 不歧視通知
- Accessibility
-
Your Privacy Choices
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.