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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 - Dover - Employer Drug Testing Not Offered

15 Durham Rd,

Suite 206

Dover, NH 03820

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8.12 mi away

Schedule Appointment 603-919-2500
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
Intermed- 50 Foden Rd-By Appt Only

50 Foden Rd,

First Fl

South Portland, ME 04106

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35.49 mi away

207-874-1489
Monday: 11:00 am-5:00 pm
Tuesday: 11:00 am-5:00 pm
Wednesday: 11:00 am-5:00 pm
Thursday: 11:00 am-5:00 pm
Friday: 11:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Haverhill

62 Brown St,

Ste 202

Haverhill, MA 01830

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36.37 mi away

Schedule Appointment 978-556-5655
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 - Derry - Employer Drug Testing Not Offered

14 Tsienneto Rd,

Building A 2Nd Floor

Derry, NH 03038

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38.49 mi away

Schedule Appointment 603-425-7614
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: Closed
Sunday: Closed
Quest Diagnostics - Derry - Employer Drug Testing Not Offered

6 Tsienneto Rd,

Suite Ll102

Derry, NH 03038

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38.64 mi away

603-437-3870
Monday: 6:00 am-8:00 pm
Tuesday: 6:00 am-8:00 pm
Wednesday: 6:00 am-8:00 pm
Thursday: 6:00 am-5:00 pm
Friday: 6:00 am-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Methuen 380R Merrimack Street - Employer Drug Testing Not Offered

380R Merrimack St,

Suite 102

Methuen, MA 01844

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39.55 mi away

Schedule Appointment 978-975-9878
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 - Londonderry

50 Michels Way,

Suite 207

Londonderry, NH 03053

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40.75 mi away

Schedule Appointment 603-851-6901
Monday: 7:00 am-8:00 pm
Tuesday: 7:00 am-8:00 pm
Wednesday: 7:00 am-8:00 pm
Thursday: 7:00 am-8:00 pm
Friday: 7:00 am-5:00 pm
Saturday: 6:30 am-3:00 pm
Sunday: Closed
Quest Diagnostics - Concord Hall St

81 Hall St,

2Nd Floor

Concord, NH 03301

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41.34 mi away

Schedule Appointment 603-223-0307
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 - Stiles Rd

8 Stiles Rd,

Ste 111

Salem, NH 03079

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41.74 mi away

Schedule Appointment 603-890-6053
Monday: 6:30 am-5:00 pm
Tuesday: 6:30 am-5:00 pm
Wednesday: 6:30 am-5:00 pm
Thursday: 6:30 am-5:00 pm
Friday: 6:30 am-5:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Holy Family Methuen

60 East St,

Ste 1200

Methuen, MA 01844

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41.82 mi away

Schedule Appointment 978-688-5828
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 - Gilford

14 Country Club Rd,

Next Door To The Big Apple Gas Station.

Gilford, NH 03249

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41.86 mi away

Schedule Appointment 603-524-5946
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 - Manchester

195 McGregor St,

Ste 25 Center Entrance

Manchester, NH 03102

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42.04 mi away

Schedule Appointment 603-626-1249
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: Closed
Sunday: Closed
Quest Diagnostics - Lawrence

101 AMESBURY ST,

STE 204

Lawrence, MA 01840

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42.79 mi away

Schedule Appointment 978-975-4098
Monday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Tuesday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Wednesday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Thursday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Friday: 8:00 am-12:30 pm , 1:30 pm-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bedford NH

160 S River Rd,

Bedford, NH 03110

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43.61 mi away

Schedule Appointment 603-621-0110
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-5:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - North Andover

203 Turnpike St,

Suite 300B

North Andover, MA 01845

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43.97 mi away

Schedule Appointment 978-409-0018
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 - Pelham

49 Atwood Rd,

Pelham, NH 03076

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46.59 mi away

Schedule Appointment 603-537-8156
Monday: 7:30 am-12:30 pm , 1:30 pm-4:00 pm
Tuesday: 7:30 am-12:30 pm , 1:30 pm-4:00 pm
Wednesday: 7:30 am-12:30 pm , 1:30 pm-4:00 pm
Thursday: 7:30 am-12:30 pm , 1:30 pm-4:00 pm
Friday: 7:30 am-12:30 pm , 1:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Goffstown

89 S Mast St,

Goffstown, NH 03045

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47.18 mi away

Schedule Appointment 603-497-7599
Monday: 7:00 am-12:00 pm , 12:30 pm-3:30 pm
Tuesday: 7:00 am-12:00 pm , 12:30 pm-3:30 pm
Wednesday: 7:00 am-12:00 pm , 12:30 pm-3:30 pm
Thursday: 7:00 am-12:00 pm , 12:30 pm-3:30 pm
Friday: 7:00 am-12:00 pm , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Danvers

180 Endicott St,

Danvers, MA 01923

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48.89 mi away

Schedule Appointment 978-777-7879
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

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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. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.