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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 - Dover

1102 S Dupont Hwy,

Dover, DE 19901

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16.06 mi away

Schedule Appointment 302-736-8656
Monday: 6:00 am-3:00 pm
Tuesday: 6:00 am-3:00 pm
Wednesday: 6:00 am-3:00 pm
Thursday: 6:00 am-3:00 pm
Friday: 6:00 am-3:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
UM Shore Regional Hlth Diagnostics Imaging Ctr - Shore Health Medical Ctr

10 Martin Ct,

Easton, MD 21601

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26.22 mi away

410-820-7778
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: 8:00 am-12:00 pm
Sunday: Closed
UM Shore Medical Center at Easton - UM Shore Medical Center at Easton

219 S Washington St,

Lab

Easton, MD 21601

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26.58 mi away

410-822-1000
Monday: 24 hrs
Tuesday: 24 hrs
Wednesday: 24 hrs
Thursday: 24 hrs
Friday: 24 hrs
Saturday: 24 hrs
Sunday: 24 hrs
Quest Diagnostics - Lewes

1606 Savannah Rd,

Suite 7

Lewes, DE 19958

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26.82 mi away

Schedule Appointment 302-644-2484
Monday: 6:30 am-11:00 am , 12:00 pm-3:00 pm
Tuesday: 6:30 am-11:00 am , 12:00 pm-3:00 pm
Wednesday: 6:30 am-11:00 am , 12:00 pm-3:00 pm
Thursday: 6:30 am-11:00 am , 12:00 pm-3:00 pm
Friday: 6:30 am-11:00 am , 12:00 pm-3:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Sleepy Hollow

102 Sleepy Hollow Dr,

Ste 101

Middletown, DE 19709

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37.11 mi away

Schedule Appointment 302-376-8674
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 - Millville Ocean View

38025 Town Center Dr,

Millville, DE 19967

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37.57 mi away

Schedule Appointment 302-537-3862
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 - Salisbury Main Street

712 E Main St,

Salisbury, MD 21804

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38.63 mi away

Schedule Appointment 410-742-3146
Monday: 7:00 am-11:10 am , 12:00 pm-3:00 pm
Tuesday: 7:00 am-11:10 am , 12:00 pm-3:00 pm
Wednesday: 7:00 am-11:10 am , 12:00 pm-3:00 pm
Thursday: 7:00 am-11:10 am , 12:00 pm-3:00 pm
Friday: 7:00 am-11:10 am , 12:00 pm-3:00 pm
Saturday: 7:00 am-11:00 am
Sunday: Closed
Quest Diagnostics - Rio Grande

1500 Delsea Dr,

Rte 47

Rio Grande, NJ 08242

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39.95 mi away

Schedule Appointment 609-889-2292
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 - Vineland NJ

2848 S Delsea Dr,

Building 4 Unit A C4A

Vineland, NJ 08360

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47.17 mi away

Schedule Appointment 201-694-9628
Monday: 6:30 am-7:00 pm
Tuesday: 6:30 am-7:00 pm
Wednesday: 6:30 am-7:00 pm
Thursday: 6:30 am-7:00 pm
Friday: 6:30 am-5:00 pm
Saturday: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Newark DE Biddle Avenue

300 Biddle Ave,

Ste 212

Newark, DE 19702

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47.36 mi away

Schedule Appointment 302-838-2223
Monday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Tuesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Wednesday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Thursday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Friday: 7:00 am-11:30 am , 12:30 pm-3:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Inside Elkton Walmart Store

1000 E Pulaski Hwy,

Elkton, MD 21921

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47.83 mi away

Schedule Appointment 410-441-5538
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: 7:30 am-2:00 pm
Sunday: Closed
Quest Diagnostics - Bestgate

820 Bestgate Rd,

Ste 1D

Annapolis, MD 21401

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49.14 mi away

Schedule Appointment 410-573-4891
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: 7:00 am-11:00 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. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.