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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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US Facilities & Operations International Facilities & Operations

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Quest Diagnostics - Flemington

3 Walter E Foran Blvd,

Unit 303

Flemington, NJ 08822

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0.55 mi away

Schedule Appointment 908-806-0005
Monday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Hillsborough Centre

649 Rte 206,

Unit 9

Hillsborough, NJ 08844

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11.87 mi away

Schedule Appointment 908-533-9341
Monday: 7:00 am-11:30 am , 12:30 pm-3:00 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:00 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:00 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:00 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Princeton

601 Ewing St,

Ste C22

Princeton, NJ 08540

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15.14 mi away

Schedule Appointment 609-688-9168
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Buckingham Green

4920 York Rd,

Unit 2

Holicong, PA 18928

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16.55 mi away

Schedule Appointment 215-794-7807
Monday: 6:30 am-11:30 am , 12:00 pm-3:00 pm
Tuesday: 6:30 am-11:30 am , 12:00 pm-3:00 pm
Wednesday: 6:30 am-11:30 am , 12:00 pm-3:00 pm
Thursday: 6:30 am-11:30 am , 12:00 pm-3:00 pm
Friday: 6:30 am-11:30 am , 12:00 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bound Brook

601 W Union Ave,

Bound Brook, NJ 08805

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16.97 mi away

Schedule Appointment 732-563-1450
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Lawrenceville

168 Franklin Corner Rd,

Bldg 2 Ste 1D

Lawrenceville, NJ 08648

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18.81 mi away

Schedule Appointment 609-637-0300
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 - Trenton Ewing - Employer Drug Testing Not Offered

795 Parkway Ave,

Unit A7

Trenton, NJ 08618

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19.02 mi away

Schedule Appointment 609-406-0900
Monday: 6:30 am-12:00 pm , 12:40 pm-3:00 pm
Tuesday: 6:30 am-12:00 pm , 12:40 pm-3:00 pm
Wednesday: 6:30 am-12:00 pm , 12:40 pm-3:00 pm
Thursday: 6:30 am-12:00 pm , 12:40 pm-3:00 pm
Friday: 6:30 am-12:00 pm , 12:40 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Plainsboro Town Center

3 Liberty St,

Ste 1016

Plainsboro, NJ 08536

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19.4 mi away

Schedule Appointment 609-897-1222
Monday: 7:00 am-2:30 pm
Tuesday: 7:00 am-2:30 pm
Wednesday: 7:00 am-2:30 pm
Thursday: 7:00 am-2:30 pm
Friday: 7:00 am-2:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Doylestown

252 W Swamp Rd,

Ste 45

Doylestown, PA 18901

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19.4 mi away

Schedule Appointment 215-340-0348
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Somerset

49 Veronica Ave,

Ste 203

Somerset, NJ 08873

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19.57 mi away

Schedule Appointment 732-873-3277
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: 7:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Village at Newtown - Employer Drug Testing Not Offered

2118 S Eagle Rd,

Store 14

Newtown, PA 18940

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20.42 mi away

Schedule Appointment 215-579-1968
Monday: 7:00 am-11:30 am , 12:10 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:10 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:10 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:10 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:10 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bernardsville

1 Anderson Hill Rd,

Ste 101

Bernardsville, NJ 07924

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20.93 mi away

Schedule Appointment 908-766-1220
Monday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Tuesday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Wednesday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Thursday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Friday: 7:00 am-12:00 pm , 1:00 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Richboro

130 Almshouse Rd,

Suite 200

Richboro, PA 18954

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22.49 mi away

Schedule Appointment 215-322-5747
Monday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:00 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Hackettstown NJ

78 Main St,

Ste 60

Hackettstown, NJ 07840

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23.18 mi away

Schedule Appointment 908-850-5629
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Hamilton

1225 Whitehorse Mercerville Rd,

Ste 201

Hamilton, NJ 08619

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23.4 mi away

Schedule Appointment 609-581-7767
Monday: 6:00 am-2:30 pm
Tuesday: 6:00 am-2:30 pm
Wednesday: 6:00 am-2:30 pm
Thursday: 6:00 am-2:30 pm
Friday: 6:00 am-2:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Langhorne

586 Middletown Blvd,

Suite C-11

Langhorne, PA 19047

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23.46 mi away

Schedule Appointment 215-750-9481
Monday: 6:30 am-3:30 pm
Tuesday: 6:30 am-3:30 pm
Wednesday: 6:30 am-3:30 pm
Thursday: 6:30 am-3:30 pm
Friday: 6:30 am-3:30 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Warrington

634 Easton Rd,

Warrington, PA 18976

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24.64 mi away

Schedule Appointment 215-491-2403
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

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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.