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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 - Newfane

2735 Main St,

Newfane, NY 14108

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7.39 mi away

Schedule Appointment 716-778-7353
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: Closed
Sunday: Closed
Quest Diagnostics - Lockport South Transit

5891 S Transit Rd,

Lockport, NY 14094

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10.02 mi away

Schedule Appointment 716-433-8944
Monday: 5:30 am-4:00 pm
Tuesday: 5:30 am-4:00 pm
Wednesday: 5:30 am-4:00 pm
Thursday: 5:30 am-4:00 pm
Friday: 5:30 am-4:00 pm
Saturday: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Maple Road

2350 Maple Rd,

Amherst, NY 14221

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19.07 mi away

Schedule Appointment 716-329-6579
Monday: 6:20 am-2:00 pm
Tuesday: 6:20 am-2:00 pm
Wednesday: 6:20 am-2:00 pm
Thursday: 6:20 am-2:00 pm
Friday: 6:20 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - West Amherst

3950 E Robinson Rd,

Ste 105

Amherst, NY 14228

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19.41 mi away

Schedule Appointment 716-691-1744
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: Closed
Sunday: Closed
Quest Diagnostics - 6255 Sheridan Drive

6255 Sheridan Dr,

Ste 120

Amherst, NY 14221

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19.9 mi away

Schedule Appointment 716-344-1835
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 - 4181 Transit

4181 Transit Rd,

Transit Town Plaza

Amherst, NY 14221

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20.75 mi away

Schedule Appointment 716-633-8354
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Meadow

301 Meadow Dr,

Unit 76

North Tonawanda, NY 14120

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20.95 mi away

Schedule Appointment 716-694-9558
Monday: 5:00 am-3:00 pm
Tuesday: 5:00 am-3:00 pm
Wednesday: 5:00 am-3:00 pm
Thursday: 5:00 am-3:00 pm
Friday: 5:00 am-3:00 pm
Saturday: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - 3620 Sheridan Drive

3620 Sheridan Dr,

Ste 100

Amherst, NY 14226

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22.05 mi away

Schedule Appointment 716-833-1363
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - 3842 Harlem

3842 Harlem Rd,

Cheektowaga, NY 14215

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23.5 mi away

Schedule Appointment 716-835-9522
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: Closed
Sunday: Closed
Quest Diagnostics - Niagara Falls

1370 Military Rd,

Niagara Falls, NY 14304

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23.53 mi away

Schedule Appointment 716-297-7105
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Tonawanda

4041 Delaware Ave,

Ste 110

Tonawanda, NY 14150

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23.62 mi away

Schedule Appointment 716-877-5040
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Alden

12845 Broadway St,

Alden, NY 14004

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24.67 mi away

Schedule Appointment 716-937-6677
Monday: 6:20 am-2:00 pm
Tuesday: 6:20 am-2:00 pm
Wednesday: 6:20 am-2:00 pm
Thursday: 6:20 am-2:00 pm
Friday: 6:20 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Depew

5340 Transit Rd,

Depew, NY 14043

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24.89 mi away

Schedule Appointment 716-681-5517
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Lewiston

790 Center St,

Lewiston, NY 14092

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24.95 mi away

Schedule Appointment 716-754-1670
Monday: 5:30 am-1:00 pm
Tuesday: 5:30 am-1:00 pm
Wednesday: 5:30 am-1:00 pm
Thursday: 5:30 am-1:00 pm
Friday: 5:30 am-1:00 pm
Saturday: 6:00 am-10:00 am
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.