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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 - Gardner MA - Employer Drug Testing Not Offered

175 Connors St,

Lower Level

Gardner, MA 01440

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35.41 mi away

Schedule Appointment 978-632-3333
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
Quest Diagnostics - Northampton

6 Hatfield St,

Northampton, MA 01060

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36.15 mi away

Schedule Appointment 413-428-1260
Monday: 7:00 am-12:30 pm , 1:30 pm-3:30 pm
Tuesday: 7:00 am-12:30 pm , 1:30 pm-3:30 pm
Wednesday: 7:00 am-12:30 pm , 1:30 pm-3:30 pm
Thursday: 7:00 am-12:30 pm , 1:30 pm-3:30 pm
Friday: 7:00 am-12:30 pm , 1:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Claremont NH

214 Washington St,

Ste A

Claremont, NH 03743

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38.0 mi away

Schedule Appointment 603-504-3750
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 - Fitchburg 370 Lunenburg

370 Lunenburg St,

Center Suite

Fitchburg, MA 01420

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45.49 mi away

Schedule Appointment 978-956-4049
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: Closed
Sunday: Closed
Quest Diagnostics - Pittsfield

42 Summer St,

Ste 305

Pittsfield, MA 01201

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45.99 mi away

Schedule Appointment 413-499-8718
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
Quest Diagnostics - Leominster Erdman Way

79 Erdman Way,

Ste 100

Leominster, MA 01453

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47.19 mi away

Schedule Appointment 978-466-9009
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-11:00 am
Sunday: Closed
Quest Diagnostics MA LLC - Leominster North Main Street - Employer Drug Testing Not Offered

85 North Main Street,

Leominster, MA 01453

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47.76 mi away

Schedule Appointment 978-466-5785
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 - Springfield

1284 Saint James Ave,

Springfield, MA 01104

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48.99 mi away

Schedule Appointment 413-755-1711
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
Quest Diagnostics - Riverdale St PSC

935 Riverdale St,

Ste F103

West Springfield, MA 01089

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49.92 mi away

Schedule Appointment 413-574-0880
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

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Our safety precautions help ensure your confidence and comfort while visiting our Patient Service Centers to get the testing you need, today and every day.

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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.