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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 - Colchester - Employer Drug Testing Not Offered

163 Broadway St,

Colchester, CT 06415

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3.6 mi away

Schedule Appointment 860-295-3458
Monday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Tuesday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Wednesday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Thursday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Friday: 7:30 am-12:00 pm , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Marlborough - Employer Drug Testing Not Offered

3-5 E. Hampton Rd,

Suite 3B

Marlborough, CT 06447

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4.72 mi away

Schedule Appointment 860-324-7982
Monday: 6:30 am-3:00 pm
Tuesday: 6:30 am-3:00 pm
Wednesday: 6:30 am-3:00 pm
Thursday: 6:30 am-3:00 pm
Friday: 6:30 am-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Willimantic

1601 Main St,

Ste 30C

Willimantic, CT 06226

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9.87 mi away

Schedule Appointment 959-232-9606
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Mansfield Center

135 Storrs Rd,

Mansfield Center, CT 06250

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12.01 mi away

Schedule Appointment 860-786-6115
Monday: 6:30 am-3:00 pm
Tuesday: 6:30 am-3:00 pm
Wednesday: 6:30 am-3:00 pm
Thursday: 6:30 am-3:00 pm
Friday: 6:30 am-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Manchester

555 Main Street,

Manchester, CT 06040

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13.14 mi away

Schedule Appointment 860-327-9096
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
Quest Diagnostics - Glastonbury Western Boulevard - Employer Drug Testing Not Offered

305 Western Blvd,

Glastonbury, CT 06033

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13.39 mi away

Schedule Appointment 860-781-0396
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 - Glastonbury New London Turnpike

131 New London Turnpike,

Glastonbury, CT 06033

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13.84 mi away

Schedule Appointment 860-815-0254
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Manchester - Employer Drug Testing Not Offered

250 N Main St,

Manchester, CT 06042

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14.46 mi away

Schedule Appointment 860-327-9095
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - MIddletown 2

440 Saybrook Rd,

Unit 2

Middletown, CT 06457

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14.66 mi away

Schedule Appointment 860-788-4854
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-11:30 am
Sunday: Closed
Quest Diagnostics - Vernon

444 Hartford Tpke,

Vernon, CT 06066

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15.34 mi away

Schedule Appointment 860-926-0367
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 - Norwich Salem Turnpike - Employer Drug Testing Not Offered

111 Salem Turnpike,

Norwich, CT 06360

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15.45 mi away

Schedule Appointment 860-934-0946
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: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Norwich-CL 1137

42 Town St,

Ste 1000B

Norwich, CT 06360

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15.72 mi away

Schedule Appointment 959-247-0695
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 - Wethersfield

1080 Silas Deane Hwy,

Wethersfield, CT 06109

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15.82 mi away

Schedule Appointment 860-266-3785
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Norwich Washinton St

330 Washington Street,

Norwich, CT 06360

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15.97 mi away

Schedule Appointment 860-934-0945
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 - South Windsor - Employer Drug Testing Not Offered

1735 Ellington Rd,

South Windsor, CT 06074

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17.18 mi away

Schedule Appointment 860-327-9093
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 - East Hartford Connecticut Blvd - Employer Drug Testing Not Offered

477 Connecticut Boulevard,

Suite 213, Second Floor

East Hartford, CT 06108

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18.08 mi away

Schedule Appointment 860-200-7491
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Newington Berlin Turnpike

2284 Berlin Tpke,

Newington, CT 06111

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18.33 mi away

Schedule Appointment 860-729-2951
Monday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Retreat

100 Retreat Ave,

Ste 102

Hartford, CT 06106

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18.61 mi away

Schedule Appointment 860-200-7480
Monday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Tuesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Wednesday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Thursday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Friday: 8:00 am-12:00 pm , 1:00 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - CCMC PSC - Employer Drug Testing Not Offered

282 Washington St,

Ste 2H

Hartford, CT 06106

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18.77 mi away

Schedule Appointment 860-200-7482
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: Closed
Sunday: Closed
Quest Diagnostics - Seymour Street - Employer Drug Testing Not Offered

85 Seymour St,

Ste 215

Hartford, CT 06106

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18.78 mi away

Schedule Appointment 860-200-7484
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Newington - Employer Drug Testing Not Offered

955 Main St,

Newington, CT 06111

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19.43 mi away

Schedule Appointment 860-200-7486
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - East Lyme

15 Chesterfield Road,

East Lyme, CT 06333

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19.7 mi away

Schedule Appointment 860-850-1045
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 - Hartford Woodland Street

21 Woodland St,

Ste L-23, Ground Fl

Hartford, CT 06105

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20.25 mi away

Schedule Appointment 860-200-7481
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Kensington - Employer Drug Testing Not Offered

320 New Britain Rd,

Kensington, CT 06037

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21.21 mi away

Schedule Appointment 860-259-2981
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
Quest Diagnostics - Windsor Mack Street - Employer Drug Testing Not Offered

74 Mack St,

Rear Of Bldg

Windsor, CT 06095

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21.9 mi away

Schedule Appointment 860-607-0546
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 - West Hartford Farmington Avenue - Employer Drug Testing Not Offered

970 Farmington Ave,

Suite 209, Second Floor

West Hartford, CT 06107

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21.95 mi away

Schedule Appointment 860-200-7496
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-12:00 pm
Sunday: Closed
Quest Diagnostics - Grove Street New Britain

1 Grove St,

New Britain, CT 06053

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22.29 mi away

Schedule Appointment 860-414-2792
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: 7:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Old Saybrook

665 Boston Post Road,

Old Saybrook Shopping Center

Old Saybrook, CT 06475

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22.6 mi away

Schedule Appointment 860-339-4298
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 - Meriden Broad Street

816 Broad Street, Ste 22,

The Beeches

Meriden, CT 06450

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22.84 mi away

Schedule Appointment 203-427-9079
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bloomfield - Employer Drug Testing Not Offered

2 Northwestern Dr,

Bloomfield, CT 06002

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23.04 mi away

Schedule Appointment 860-242-4547
Monday: 8:00 am-12:30 pm , 1:00 pm-4:30 pm
Tuesday: 8:00 am-12:30 pm , 1:00 pm-4:30 pm
Wednesday: 8:00 am-12:30 pm , 1:00 pm-4:30 pm
Thursday: 8:00 am-12:30 pm , 1:00 pm-4:30 pm
Friday: 8:00 am-12:30 pm , 1:00 pm-4:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bloomfield - Employer Drug Testing Not Offered

701 Cottage Grove Rd,

Bldg B, Suite 130

Bloomfield, CT 06002

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23.44 mi away

Schedule Appointment 860-256-2161
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 - New London Bank Street

721 Bank Street,

New London, CT 06320

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23.58 mi away

Schedule Appointment 860-772-0751
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-11:00 am
Sunday: Closed
Quest Diagnostics - Midstate Medical Center - Employer Drug Testing Not Offered

435 Lewis Ave,

Meriden, CT 06451

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23.59 mi away

Schedule Appointment 203-427-9077
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 183 N Mountain Road - Employer Drug Testing Not Offered

183 N Mountain Rd,

New Britain, CT 06053

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24.15 mi away

Schedule Appointment 860-438-8984
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: 7:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Plainfield CT

584 Norwich Rd,

Floor 2, Suite 600

Plainfield, CT 06374

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24.54 mi away

Schedule Appointment 860-317-0321
Monday: 6:00 am-4:00 pm
Tuesday: 6:00 am-4:00 pm
Wednesday: 6:00 am-4:00 pm
Thursday: 6:00 am-4:00 pm
Friday: 6:00 am-4:00 pm
Saturday: 7:00 am-11:00 am
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.