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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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Quest Diagnostics - Clarkston Main Employer Drug Testing Not Offered

5825 S Main St,

Ste 202

Clarkston, MI 48346

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8.29 mi away

Schedule Appointment 248-221-8389
Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Lake Orion PSC

1424 S Lapeer Rd,

Lake Orion, MI 48360

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11.35 mi away

Schedule Appointment 248-693-4102
Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Grand Blanc Regency Park - Employer Drug Testing Not Offered

3434 Regency Park Dr,

Ste B

Grand Blanc, MI 48439

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11.47 mi away

Schedule Appointment 248-247-9489
Monday: 7:00 am-4:00 pm
Tuesday: 7:00 am-4:00 pm
Wednesday: 7:00 am-5:00 pm
Thursday: 7:00 am-4:00 pm
Friday: 7:00 am-1:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Davison Employer Drug Testing Not Offered

1097 S State Rd,

Unit 2

Davison, MI 48423

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12.87 mi away

Schedule Appointment 810-653-7651
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: Closed
Sunday: Closed
Quest Diagnostics - Grand Blanc Porter Employer Drug Testing Not Offered

6011 Porter Rd,

Grand Blanc, MI 48439

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14.15 mi away

Schedule Appointment 810-695-7975
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-10:00 am
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Lapeer Baldwin Road Employer Drug Testing Not Offered

944 Baldwin Rd,

Ste C

Lapeer, MI 48446

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14.6 mi away

Schedule Appointment 810-322-0605
Monday: 6:00 am-5:00 pm
Tuesday: 6:00 am-5:00 pm
Wednesday: 6:00 am-5:00 pm
Thursday: 6:00 am-5:00 pm
Friday: 6:00 am-5:00 pm
Saturday: 7:30 am-12:30 pm
Sunday: Closed
Quest Diagnostics - Fenton Caroline Employer Drug Testing Not Offered

234 W Caroline St,

Fenton, MI 48430

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15.07 mi away

Schedule Appointment 248-230-0843
Monday: 6:00 am-3:00 pm
Tuesday: 6:00 am-3:00 pm
Wednesday: 6:00 am-3:00 pm
Thursday: 6:00 am-3:00 pm
Friday: 6:00 am-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Employer Drug Testing Not Offered - Inside Walmart Burton

5323 E Court St N,

Burton, MI 48509

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15.38 mi away

Schedule Appointment 810-221-1983
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Fenton Fenway Employer Drug Testing Not Offered

425 N Fenway Dr,

Fenton, MI 48430

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15.97 mi away

Schedule Appointment 248-331-6042
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
Quest Diagnostics - Inside Commerce Walmart

3301 N Pontiac Trl,

Commerce Township, MI 48390

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19.6 mi away

Schedule Appointment 248-574-4843
Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Flint North Ballenger Park Plaza - Employer Drug Screens Not Offered At This Site

G1071 N Ballenger Hwy,

Ste 101

Flint, MI 48504

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20.34 mi away

Schedule Appointment 810-232-4559
Monday: 7:00 am-4:00 pm
Tuesday: 7:00 am-4:00 pm
Wednesday: 7:00 am-3:00 pm
Thursday: 7:00 am-4:00 pm
Friday: 7:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Walmart Corunna Road

4313 Corunna Rd,

Flint, MI 48532

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20.77 mi away

Schedule Appointment 810-221-1851
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: 7:00 am-11:00 am
Sunday: Closed
Walmart-Quest_Flint_P0325a - Walmart-Quest_Flint_P0325a

4313 Corunna Rd,

Drive-thru

Flint, MI 48532

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20.77 mi away

866-697-8378
Monday: Vary
Tuesday: Vary
Wednesday: Vary
Thursday: Vary
Friday: Vary
Saturday: Vary
Sunday: Vary
Quest Diagnostics - Rochester Barclay Employer Drug Testing Not Offered

135 Barclay Cir,

Ste 103

Rochester Hills, MI 48307

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21.09 mi away

Schedule Appointment 248-234-3021
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-1:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Flint Villa Linde Parkway - Employer Drug Screens Not Offered At This Site

5080 Villa Linde Pkwy,

Ste 3

Flint, MI 48532

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21.87 mi away

Schedule Appointment 810-733-8460
Monday: 5:30 am-5:00 pm
Tuesday: 5:30 am-5:00 pm
Wednesday: 5:30 am-5:00 pm
Thursday: 5:30 am-5:00 pm
Friday: 5:30 am-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Mt Morris Employer Drug Testing Not Offered

11515 N Saginaw St,

Mount Morris, MI 48458

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23.51 mi away

Schedule Appointment 810-686-4440
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: Closed
Sunday: Closed
Quest Diagnostics - Novi Employer Drug Testing Not Offered

40015 Grand River Rd,

Ste 115

Novi, MI 48375

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25.59 mi away

Schedule Appointment 248-459-5309
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-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Troy Dequindre - Employer Drug Testing Not Offered

38815 Dequindre Rd,

Ste 102

Troy, MI 48083

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25.72 mi away

Schedule Appointment 248-292-1028
Monday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Quest Diagnostics Southfield

23077 Greenfield Rd,

Ste 402

Southfield, MI 48075

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29.09 mi away

Schedule Appointment 866-697-8378
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Inside Walmart Clinton Township

18400 Hall Rd,

Clinton Twp, MI 48038

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30.1 mi away

Schedule Appointment 586-221-0148
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
Quest Diagnostics - Livonia Farmington

11583 Farmington Rd,

Livonia, MI 48150

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33.0 mi away

Schedule Appointment 313-348-0438
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
Quest Diagnostics - Frankenmuth - Employer Drug Testing Not Offered

487 N Main St,

Ste E

Frankenmuth, MI 48734

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38.14 mi away

Schedule Appointment 989-326-7678
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
Quest Diagnostics - Dearborn Michigan Avenue

25070 Michigan Ave,

Dearborn, MI 48124

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38.43 mi away

Schedule Appointment 313-300-9763
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: 8:00 am-1:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Riverview Fort St

19020 Fort St,

Riverview, MI 48193

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48.2 mi away

Schedule Appointment 734-309-3736
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

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Our company

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.