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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 - Grass Valley Sierra College - Employer Drug Testing Not Offered

300 Sierra College Dr,

Suite 210

Grass Valley, CA 95945

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9.1 mi away

Schedule Appointment 530-271-0153
Monday: 7:00 am-11:00 am , 12:00 pm-3:00 pm
Tuesday: 7:00 am-11:00 am , 12:00 pm-3:00 pm
Wednesday: 7:00 am-11:00 am , 12:00 pm-3:00 pm
Thursday: 7:00 am-11:00 am , 12:00 pm-3:00 pm
Friday: 7:00 am-11:00 am , 12:00 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Penn Valley Pleasant Valley - Employer Drug Testing Not Offered

11366 Pleasant Valley Rd,

Penn Valley, CA 95946

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9.4 mi away

Schedule Appointment 661-695-3078
Monday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Tuesday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Wednesday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Thursday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Friday: 6:30 am-11:00 am , 12:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Grass Valley Glasson Way - Employer Drug Testing Not Offered

155 Glasson Wy,

Building 4

Grass Valley, CA 95945

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9.71 mi away

Schedule Appointment 360-488-4901
Monday: 6:30 am-4:30 pm
Tuesday: 6:30 am-4:30 pm
Wednesday: 6:30 am-4:30 pm
Thursday: 6:30 am-4:30 pm
Friday: 6:30 am-4:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Oroville Oro Dam Blvd

670 Oro Dam Blvd E,

Ste 103

Oroville, CA 95965

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24.95 mi away

Schedule Appointment 530-533-8823
Monday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Auburn 3133 Professional Dr

3133 Professional Drive,

Suite 16

Auburn, CA 95603

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28.34 mi away

Schedule Appointment 530-889-6100
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 - Yuba City Plumas Ct

1526 Plumas Ct,

Yuba City, CA 95991

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28.95 mi away

Schedule Appointment 530-671-2733
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: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Lincoln 3rd St - Employer Drug Testing Not Offered

1530 3rd Street,

Suite 100

Lincoln, CA 95648

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33.04 mi away

Schedule Appointment 916-645-3813
Monday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Friday: 7:00 am-11:30 am , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Paradise 6460 Pentz Rd

6460 Pentz Rd,

Ste B

Paradise, CA 95969

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37.29 mi away

Schedule Appointment 530-781-5535
Monday: 7:00 am-11:00 am , 11:40 am-3:30 pm
Tuesday: 7:00 am-11:00 am , 11:40 am-3:30 pm
Wednesday: 7:00 am-11:00 am , 11:40 am-3:30 pm
Thursday: 7:00 am-11:00 am , 11:40 am-3:30 pm
Friday: 7:00 am-11:00 am , 11:40 am-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Roseville East Roseville Parkway - Employer Drug Testing Not Offered

1420 E Roseville Pkwy,

Ste 120

Roseville, CA 95661

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41.16 mi away

Schedule Appointment 279-900-7441
Monday: 7:00 am-11:00 am , 12:00 pm-2:00 pm
Tuesday: 7:00 am-11:00 am , 12:00 pm-2:00 pm
Wednesday: 7:00 am-11:00 am , 12:00 pm-2:00 pm
Thursday: 7:00 am-11:00 am , 12:00 pm-2:00 pm
Friday: 7:00 am-11:00 am , 12:00 pm-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Roseville North Sunrise - Employer Drug Testing Not Offered

151 North Sunrise Avenue,

Suite 711

Roseville, CA 95661

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42.27 mi away

Schedule Appointment 279-900-7440
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: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Roseville Sierra College - Employer Drug Testing Not Offered

8690 Sierra College Blvd,

Ste 120

Roseville, CA 95661

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42.41 mi away

Schedule Appointment 916-788-0288
Monday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Chico 670 Rio Lindo Ave

670 Rio Lindo Ave,

Ste 500

Chico, CA 95926

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46.8 mi away

Schedule Appointment 530-894-3863
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: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Placerville Cedar Ravine - Employer Drug Testing Not Offered

3105 Cedar Ravine Rd,

Ste 101

Placerville, CA 95667

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46.82 mi away

Schedule Appointment 530-295-8329
Monday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Colusa Bridge St

1025 Bridge St,

Colusa, CA 95932

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47.02 mi away

Schedule Appointment 530-458-7676
Monday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Folsom 1600 Creekside

1600 Creekside Drive,

Suite 1100

Folsom, CA 95630

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47.07 mi away

Schedule Appointment 916-984-8032
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
Quest Diagnostics - Greenback Dignity

7115 Greenback Lane,

Citrus Heights, CA 95621

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47.21 mi away

Schedule Appointment 279-321-1094
Monday: 7:00 am-11:00 am , 12:00 pm-4:00 pm
Tuesday: 7:00 am-11:00 am , 12:00 pm-4:00 pm
Wednesday: 7:00 am-11:00 am , 12:00 pm-4:00 pm
Thursday: 7:00 am-11:00 am , 12:00 pm-4:00 pm
Friday: 7:00 am-11:00 am , 12:00 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Carmichael 6555 Coyle - Employer Drug Testing Not Offered

6555 Coyle Avenue,

Suite 160

Carmichael, CA 95608

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48.02 mi away

Schedule Appointment 916-962-3991
Monday: 6:30 am-4:30 pm
Tuesday: 6:30 am-4:30 pm
Wednesday: 6:30 am-4:30 pm
Thursday: 6:30 am-4:30 pm
Friday: 6:30 am-4:30 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Carmichael 6620 Coyle - Employer Drug Testing Not Offered

6620 Coyle Avenue,

Suite 100

Carmichael, CA 95608

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48.05 mi away

Schedule Appointment 916-961-1173
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 - Fair Oaks Sunrise Blvd - Employer Drug Testing Not Offered

5265 Sunrise Blvd,

Fair Oaks, CA 95628

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48.12 mi away

Schedule Appointment 916-961-6182
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 - Prairie City Folsom

1750 Prairie City Rd,

Ste 100

Folsom, CA 95630

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48.36 mi away

Schedule Appointment 916-351-8105
Monday: 7:30 am-4:30 pm
Tuesday: 7:30 am-4:30 pm
Wednesday: 7:30 am-4:30 pm
Thursday: 7:30 am-4:30 pm
Friday: 7:30 am-4:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Cameron Park Palmer - Employer Drug Testing Not Offered

3450 Palmer Drive,

Suite 7B-7

Cameron Park, CA 95682

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48.42 mi away

Schedule Appointment 530-676-9273
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 - El Dorado Hills Golden Foothill - Employer Drug Testing Not Offered

4987 Golden Foothill Pkwy,

Ste 200

El Dorado Hills, CA 95762

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49.4 mi away

Schedule Appointment 916-413-5202
Monday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-4:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-4:00 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.