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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 - Depew

5340 Transit Rd,

Depew, NY 14043

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3.76 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 - Lancaster

4845 Transit Rd,

Lancaster, NY 14043

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4.38 mi away

Schedule Appointment 716-656-0385
Monday: 5:00 am-1:30 pm
Tuesday: 5:00 am-1:30 pm
Wednesday: 5:00 am-1:30 pm
Thursday: 5:00 am-1:30 pm
Friday: 5:00 am-1:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - 4181 Transit

4181 Transit Rd,

Transit Town Plaza

Amherst, NY 14221

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5.17 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 - 6255 Sheridan Drive

6255 Sheridan Dr,

Ste 120

Amherst, NY 14221

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6.14 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 - Alden

12845 Broadway St,

Alden, NY 14004

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6.37 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 - Maple Road

2350 Maple Rd,

Amherst, NY 14221

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6.86 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 - Walden Avenue

1779 Walden Ave,

Ste 300

Cheektowaga, NY 14225

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7.61 mi away

Schedule Appointment 716-894-1575
Monday: 5:30 am-1:30 pm
Tuesday: 5:30 am-1:30 pm
Wednesday: 5:30 am-1:30 pm
Thursday: 5:30 am-1:30 pm
Friday: 5:30 am-1:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - West Seneca

1106 Union Rd,

Southgate Plaza

West Seneca, NY 14224

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8.62 mi away

Schedule Appointment 716-675-1505
Monday: 8:00 am-6:00 pm
Tuesday: 8:00 am-6:00 pm
Wednesday: 8:00 am-6:00 pm
Thursday: 8:00 am-6:00 pm
Friday: 8:00 am-6:00 pm
Saturday: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - 3842 Harlem

3842 Harlem Rd,

Cheektowaga, NY 14215

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8.79 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 - West Seneca

264 Center Rd,

West Seneca, NY 14224

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9.07 mi away

Schedule Appointment 716-677-6255
Monday: 5:30 am-2:00 pm
Tuesday: 5:30 am-2:00 pm
Wednesday: 5:30 am-2:00 pm
Thursday: 5:30 am-2:00 pm
Friday: 5:30 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - East Aurora

268 Main St,

East Aurora, NY 14052

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9.7 mi away

Schedule Appointment 716-652-5327
Monday: 5:30 am-1:30 pm
Tuesday: 5:30 am-1:30 pm
Wednesday: 5:30 am-1:30 pm
Thursday: 5:30 am-1:30 pm
Friday: 5:30 am-1:30 pm
Saturday: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - 3041 Orchard Park

3041 Orchard Park Rd,

Orchard Park, NY 14127

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9.94 mi away

Schedule Appointment 716-677-9996
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

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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.