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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 - Alden

12845 Broadway St,

Alden, NY 14004

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17.02 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 - 4181 Transit

4181 Transit Rd,

Transit Town Plaza

Amherst, NY 14221

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25.5 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 - Maple Road

2350 Maple Rd,

Amherst, NY 14221

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25.74 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 - 6255 Sheridan Drive

6255 Sheridan Dr,

Ste 120

Amherst, NY 14221

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25.76 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 - Depew

5340 Transit Rd,

Depew, NY 14043

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26.38 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 - East Aurora

268 Main St,

East Aurora, NY 14052

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26.79 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 - Lancaster

4845 Transit Rd,

Lancaster, NY 14043

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26.85 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 - Lockport South Transit

5891 S Transit Rd,

Lockport, NY 14094

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27.28 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 - Walden Avenue

1779 Walden Ave,

Ste 300

Cheektowaga, NY 14225

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30.05 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 - 3842 Harlem

3842 Harlem Rd,

Cheektowaga, NY 14215

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30.34 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

1106 Union Rd,

Southgate Plaza

West Seneca, NY 14224

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30.75 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 - 3620 Sheridan Drive

3620 Sheridan Dr,

Ste 100

Amherst, NY 14226

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30.98 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 - West Seneca

264 Center Rd,

West Seneca, NY 14224

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31.46 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 - 3041 Orchard Park

3041 Orchard Park Rd,

Orchard Park, NY 14127

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31.53 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
Quest Diagnostics - West Amherst

3950 E Robinson Rd,

Ste 105

Amherst, NY 14228

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31.96 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 - Newfane

2735 Main St,

Newfane, NY 14108

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32.71 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 - Jefferson

1317 Jefferson Ave,

Buffalo, NY 14208

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34.34 mi away

Schedule Appointment 716-882-3020
Monday: 8:00 am-4:00 pm
Tuesday: 8:00 am-4:00 pm
Wednesday: 8:00 am-4:00 pm
Thursday: 8:00 am-4:00 pm
Friday: 8:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Delaware Place Plaza

2629 Delaware Ave,

Delaware Place Plaza

Buffalo, NY 14216

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34.63 mi away

Schedule Appointment 716-874-1703
Monday: 5:00 am-1:00 pm
Tuesday: 5:00 am-1:00 pm
Wednesday: 5:00 am-1:00 pm
Thursday: 5:00 am-1:00 pm
Friday: 5:00 am-1:00 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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34.87 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 - Blasdell

4233 Lake Ave,

Ste 2

Blasdell, NY 14219

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35.04 mi away

Schedule Appointment 716-822-1122
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
Quest Diagnostics - Meadow

301 Meadow Dr,

Unit 76

North Tonawanda, NY 14120

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35.14 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 - 455 Delaware

455 Delaware Ave,

Buffalo, NY 14202

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35.59 mi away

Schedule Appointment 716-855-2131
Monday: 6:30 am-2:30 pm
Tuesday: 6:30 am-2:30 pm
Wednesday: 6:30 am-2:30 pm
Thursday: 6:30 am-2:30 pm
Friday: 6:30 am-2:30 pm
Saturday: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Lawn Avenue

155 Lawn Ave,

Buffalo, NY 14207

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35.75 mi away

Schedule Appointment 716-877-1113
Monday: 8:00 am-4:00 pm
Tuesday: 8:00 am-4:00 pm
Wednesday: 8:00 am-4:00 pm
Thursday: 8:00 am-4:00 pm
Friday: 8:00 am-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - 300 Niagara St

300 Niagara St,

Patient Service Center

Buffalo, NY 14201

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36.15 mi away

Schedule Appointment 716-339-4250
Monday: 8:00 am-12:00 pm , 12:30 pm-4:00 pm
Tuesday: 8:00 am-12:00 pm , 12:30 pm-4:00 pm
Wednesday: 8:00 am-12:00 pm , 12:30 pm-4:00 pm
Thursday: 8:00 am-12:00 pm , 12:30 pm-4:00 pm
Friday: 8:00 am-12:00 pm , 12:30 pm-4:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Hamburg

3674 Commerce Place,

Bldg 3, Ste A

Hamburg, NY 14075

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37.9 mi away

Schedule Appointment 716-649-9171
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: 6:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Grand Island

1738 Grand Island Blvd,

Grand Island, NY 14072

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38.99 mi away

Schedule Appointment 716-773-3040
Monday: 6:00 am-2:00 pm
Tuesday: 6:00 am-2:00 pm
Wednesday: 6:00 am-2:00 pm
Thursday: 6:00 am-2:00 pm
Friday: 6:00 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Niagara Falls

1370 Military Rd,

Niagara Falls, NY 14304

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40.53 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 - Springville

231 S. Cascade Dr,

Springville, NY 14141

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42.43 mi away

Schedule Appointment 716-592-7755
Monday: 6:30 am-2:00 pm
Tuesday: 6:30 am-2:00 pm
Wednesday: 6:30 am-2:00 pm
Thursday: 6:30 am-2:00 pm
Friday: 6:30 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Portage

742 Portage Rd,

Haeberle Plaza

Niagara Falls, NY 14301

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44.7 mi away

Schedule Appointment 716-285-4619
Monday: 6:00 am-11:00 am , 11:30 am-2:00 pm
Tuesday: 6:00 am-11:00 am , 11:30 am-2:00 pm
Wednesday: 6:00 am-11:00 am , 11:30 am-2:00 pm
Thursday: 6:00 am-11:00 am , 11:30 am-2:00 pm
Friday: 6:00 am-11:00 am , 11:30 am-2:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Lewiston

790 Center St,

Lewiston, NY 14092

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45.14 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
Quest Diagnostics - Derby Tops Plaza

6940 Erie Rd,

.

Derby, NY 14047

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45.85 mi away

Schedule Appointment 716-947-5201
Monday: 6:00 am-1:30 pm
Tuesday: 6:00 am-1:30 pm
Wednesday: 6:00 am-1:30 pm
Thursday: 6:00 am-1:30 pm
Friday: 6:00 am-1:30 pm
Saturday: Closed
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.