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Quest Diagnostics

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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.

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US Facilities & Operations International Facilities & Operations

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Fast Pace - La Porte (Preferred)

1320 W State Road 2,

La Porte, IN 46350

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0.89 mi away

219-727-6431
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-6:00 pm
Sunday: 8:00 am-6:00 pm
Working Well - LaPorte (Preferred)

400 Legacy Plz W,

La Porte, IN 46350

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1.24 mi away

219-575-6055
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
Working Well - Michigan City (Preferred)

4111 S Franklin St,

Michigan City, IN 46360

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10.84 mi away

219-879-5400
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 - Porter Business Park

813 Porter Campus Dr,

Ste D

Valparaiso, IN 46383

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18.01 mi away

Schedule Appointment 219-250-0914
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Working Well - Valparaiso (Preferred)

2307 Laporte Ave,

Ste 8

Valparaiso, IN 46383

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18.93 mi away

219-476-9389
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: Closed
Sunday: Closed
CHS Occupational Health - Valparaiso (Preferred)

1451 W Morthland Dr,

Ste A

Valparaiso, IN 46385

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21.37 mi away

219-286-3830
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Beacon Occupational Hlth - South Bend (Preferred)

2301 N Bendix Dr,

Ste 500

South Bend, IN 46628

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23.7 mi away

574-647-1675
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
Working Well - Portage (Preferred)

3283 Willowcreek Rd,

Portage, IN 46368

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24.74 mi away

219-764-8439
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-4:00 pm
Sunday: Closed
CHS Occupational Health - Portage (Preferred)

3170 Willowcreek Rd,

Ste C

Portage, IN 46368

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24.82 mi away

219-947-6628
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Lakeland Southwestern Med-Niles (Preferred)

2002 S 11Th St,

Niles, MI 49120

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28.31 mi away

269-687-0200
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
Lakeland Hospital - Niles (Preferred)

31 N Saint Joseph Ave,

Niles, MI 49120

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28.93 mi away

800-791-2810
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
Working Well - Hobart (Preferred)

101 W 61St Ave,

Hobart, IN 46342

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29.38 mi away

219-945-9530
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: Closed
Sunday: Closed
CHS Occupational Health - Hobart (Preferred)

320 W 61St Ave,

Hobart, IN 46342

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29.56 mi away

219-947-6495
Monday: 7:30 am-4:00 pm
Tuesday: 7:30 am-4:00 pm
Wednesday: 7:30 am-4:00 pm
Thursday: 7:30 am-4:00 pm
Friday: 7:30 am-4:00 pm
Saturday: Closed
Sunday: Closed
Any Lab Test Now - Mishawaka (Preferred)

313 W University Dr,

Mishawaka, IN 46545

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29.66 mi away

574-287-5041
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
Fast Pace - Winfield IN (Preferred)

10736 Randolph St,

Winfield, IN 46307

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30.17 mi away

219-243-8140
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-6:00 pm
Sunday: 1:00 pm-5:00 pm
AB Lab & Diagnostics LLC (Preferred)

5475 Broadway,

Merrillville, IN 46410

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33.18 mi away

800-318-2900
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: 8:00 am-1:00 pm
Sunday: Closed
Quest Diagnostics - Crown Point Merrillville

119 E 93rd Ave,

Crown Point, IN 46307

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34.3 mi away

Schedule Appointment 219-794-1170
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Lakeland Occ Health SJ (Preferred)

2500 Niles Rd,

Ste 4

Saint Joseph, MI 49085

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35.08 mi away

269-408-4171
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 - St Joseph

2500 Niles Rd,

Ste 10B

Saint Joseph, MI 49085

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35.09 mi away

Schedule Appointment 269-428-2622
Monday: 7:00 am-12:00 pm , 12:30 pm-3:00 pm
Tuesday: 7:00 am-12:00 pm , 12:30 pm-3:00 pm
Wednesday: 7:00 am-12:00 pm , 12:30 pm-3:00 pm
Thursday: 7:00 am-12:00 pm , 12:30 pm-3:00 pm
Friday: 7:00 am-12:00 pm , 12:30 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Working Well - Crown Point (Preferred)

12800 Mississippi Pkwy,

Ste A204

Crown Point, IN 46307

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35.16 mi away

219-662-5500
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: Closed
Sunday: Closed
H-FIT Occupational Health (Preferred)

5265 Commerce Blvd,

Ste D

Crown Point, IN 46307

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37.11 mi away

855-407-8196
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
CHS Occupational Health - East Chicago (Preferred)

4320 Fir St,

Unit 313

East Chicago, IN 46312

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38.77 mi away

219-392-7424
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: Closed
Sunday: Closed
Beacon Occupational Hlth - WaNee (Preferred)

2102 N Main St,

Nappanee, IN 46550

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39.1 mi away

574-862-2504
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: Closed
Sunday: Closed
Working Well - Munster (Preferred)

7905 Calumet Ave,

Munster, IN 46321

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41.89 mi away

219-836-4690
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-4:00 pm
Sunday: Closed
CHS Occupational Health - Munster (Preferred)

10240 Calumet Ave,

Munster, IN 46321

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42.25 mi away

219-440-5286
Monday: 7:30 am-6:00 pm
Tuesday: 7:30 am-6:00 pm
Wednesday: 7:30 am-6:00 pm
Thursday: 7:30 am-6:00 pm
Friday: 7:30 am-6:00 pm
Saturday: Closed
Sunday: Closed
Core Diagnostics LLC (Preferred)

3831 Hohman Ave,

Hammond, IN 46327

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42.43 mi away

219-237-3831
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
Onyx Fingerprinting & Lab (Preferred)

5233 Hohman Ave,

Ste 101

Hammond, IN 46320

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42.58 mi away

219-803-6542
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-4:00 pm
Saturday: Closed
Sunday: Closed
Cass Family Clinic (Preferred)

261 M 62,

Cassopolis, MI 49031

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43.35 mi away

269-445-3874
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
Beacon Occupational Hlth - Elkhart (Preferred)

22818 Old Us 20,

Elkhart, IN 46516

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43.45 mi away

574-389-1231
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
Michiana Drug Testing Ctr - Cass (Preferred)

114 SPENCER RD,

CASSOPOLIS, MI 49031

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43.75 mi away

269-228-8043
Monday: 10:00 am-5:00 pm
Tuesday: 10:00 am-5:00 pm
Wednesday: 10:00 am-5:00 pm
Thursday: 10:00 am-5:00 pm
Friday: 10:00 am-5:00 pm
Saturday: 10:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Lansing PSC

17665 Torrence Ave,

Lansing, IL 60438

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44.57 mi away

Schedule Appointment 708-315-8951
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
Fast Pace - Rochester IN (Preferred)

392 Rochester Crossing Dr,

Rochester, IN 46975

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46.33 mi away

574-325-5912
Monday: 8:00 am-6:00 pm
Tuesday: 8:00 am-6:00 pm
Wednesday: Closed
Thursday: 8:00 am-6:00 pm
Friday: 8:00 am-6:00 pm
Saturday: Closed
Sunday: Closed
Local MD - Pullman (Preferred)

10834 S Doty Ave,

Chicago, IL 60628

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47.02 mi away

708-922-0911
Monday: 8:00 am-7:00 pm
Tuesday: 8:00 am-7:00 pm
Wednesday: 8:00 am-7:00 pm
Thursday: 8:00 am-7:00 pm
Friday: 8:00 am-7:00 pm
Saturday: Closed
Sunday: Closed
Tracey Total Testing LLC (Preferred)

705 E 162Nd St,

Ste 204

South Holland, IL 60473

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47.03 mi away

708-940-4991
Monday: 9:00 am-4:00 pm
Tuesday: 9:00 am-4:00 pm
Wednesday: Closed
Thursday: 9:00 am-4:00 pm
Friday: 9:00 am-4:00 pm
Saturday: 9:00 am-2:00 pm
Sunday: Closed
Lakeland Hospital-Watervliet (Preferred)

400 Medical Park Dr,

Watervliet, MI 49098

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47.5 mi away

269-463-3600
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: Closed
Sunday: Closed
Local MD - Homewood (Preferred)

17960 Halsted St,

Homewood, IL 60430

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48.73 mi away

708-922-0911
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
Beacon Occupational Hlth - Goshen (Preferred)

2312 Eisenhower Dr N,

Goshen, IN 46526

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48.83 mi away

574-534-1231
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
Working Well - Chicago Heights (Preferred)

211 Dixie Highway,

Chicago Heights, IL 60411

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49.8 mi away

708-709-2000
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

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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.