Skip to main content

In-home sample collection may be available in your area for purchase through Quest Mobile™

When scheduling an appointment online, use your zip code (not city name) for best results. After entering your zip code, a Quest Mobile option will appear if it’s available for purchase in your area. Let’s check

Hide
Quest Diagnostics

Location search

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.

Search for a lab testing location to schedule an appointment

Required

Search

Looking for a facility or operation that is not a lab testing location?

US Facilities & Operations International Facilities & Operations

List

Quest Diagnostics - Centereach - Employer Drug Testing Not Offered

2112 Middle Country Rd,

Centereach, NY 11720

Get Directions
ds-icon--pin Created with Sketch.

0.93 mi away

Schedule Appointment 631-372-2060
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
Quest Diagnostics - Selden

91 College Plaza,

Unit A

Selden, NY 11784

Get Directions
ds-icon--pin Created with Sketch.

1.9 mi away

Schedule Appointment 516-677-7731
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 - East Setauket Technology Drive

23 Technology Dr,

Ste 2

East Setauket, NY 11733

Get Directions
ds-icon--pin Created with Sketch.

2.02 mi away

Schedule Appointment 516-677-7723
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: 6:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Port Jefferson

1010 Route 112,

2nd Fl

Port Jefferson Station, NY 11776

Get Directions
ds-icon--pin Created with Sketch.

4.19 mi away

Schedule Appointment 516-677-7729
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: 6:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Smithtown NY

300 E Main St,

Ste 3A

Smithtown, NY 11787

Get Directions
ds-icon--pin Created with Sketch.

4.97 mi away

Schedule Appointment 631-626-6201
Monday: 6:00 am-3:30 pm
Tuesday: 6:00 am-3:30 pm
Wednesday: 6:00 am-3:30 pm
Thursday: 6:00 am-3:30 pm
Friday: 6:00 am-3:30 pm
Saturday: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Medford - Employer Drug Testing Not Offered

570 Expressway Dr South,

Ste 101

Medford, NY 11763

Get Directions
ds-icon--pin Created with Sketch.

5.7 mi away

Schedule Appointment 516-677-7727
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: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Hauppauge

490 Wheeler Rd,

Ste 190

Hauppauge, NY 11788

Get Directions
ds-icon--pin Created with Sketch.

8.18 mi away

Schedule Appointment 516-677-7724
Monday: 6:00 am-1:00 pm
Tuesday: 6:00 am-1:00 pm
Wednesday: 6:00 am-1:00 pm
Thursday: 6:00 am-1:00 pm
Friday: 6:00 am-1:00 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - East Patchogue

285 Sills Rd,

Bldg 8, Ste A

East Patchogue, NY 11772

Get Directions
ds-icon--pin Created with Sketch.

8.42 mi away

Schedule Appointment 516-677-7728
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: 8:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Sayville

160 Middle Rd,

Sayville, NY 11782

Get Directions
ds-icon--pin Created with Sketch.

9.27 mi away

Schedule Appointment 516-677-7734
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-12:00 pm
Sunday: Closed
Quest Diagnostics - Commack

2171 Jericho Tpke,

Ste 102

Commack, NY 11725

Get Directions
ds-icon--pin Created with Sketch.

10.83 mi away

Schedule Appointment 516-677-7721
Monday: 6:00 am-3:30 pm
Tuesday: 6:00 am-3:30 pm
Wednesday: 6:00 am-3:30 pm
Thursday: 6:00 am-3:30 pm
Friday: 6:00 am-3:30 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bay Shore

8 Saxon Ave,

Ste D

Bay Shore, NY 11706

Get Directions
ds-icon--pin Created with Sketch.

12.38 mi away

Schedule Appointment 516-677-7719
Monday: 6:00 am-3:30 pm
Tuesday: 6:00 am-3:30 pm
Wednesday: 6:00 am-3:30 pm
Thursday: 6:00 am-3:30 pm
Friday: 6:00 am-3:30 pm
Saturday: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Wading River

6144 Route 25A,

Ste 8, Bldg B

Wading River, NY 11792

Get Directions
ds-icon--pin Created with Sketch.

14.23 mi away

Schedule Appointment 516-677-7733
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 - Center Moriches - Employer Drug Testing Not Offered

534 Montauk Hwy,

Center Moriches, NY 11934

Get Directions
ds-icon--pin Created with Sketch.

15.83 mi away

Schedule Appointment 516-677-7720
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 - Huntington

175 E Main St,

Ste 105

Huntington, NY 11743

Get Directions
ds-icon--pin Created with Sketch.

16.81 mi away

Schedule Appointment 631-421-2682
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 - Babylon

500 West Main St,

Suite 202-203

Babylon, NY 11702

Get Directions
ds-icon--pin Created with Sketch.

18.47 mi away

Schedule Appointment 516-677-7718
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: 6:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Fairfield Post Road - Employer Drug Testing Not Offered

1305 Post Rd,

Ste 101

Fairfield, CT 06824

Get Directions
ds-icon--pin Created with Sketch.

20.9 mi away

Schedule Appointment 203-418-4026
Monday: 7:00 am-5:00 pm
Tuesday: 7:00 am-5:00 pm
Wednesday: 7:00 am-5:00 pm
Thursday: 7:00 am-5:00 pm
Friday: 7:00 am-5:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Stratford Lordship Boulevard

555 Lordship Blvd,

First Floor

Stratford, CT 06615

Get Directions
ds-icon--pin Created with Sketch.

20.94 mi away

Schedule Appointment 203-290-3145
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 - Plainview

146A Manetto Hill Rd,

Ste101

Plainview, NY 11803

Get Directions
ds-icon--pin Created with Sketch.

21.53 mi away

Schedule Appointment 516-677-7713
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: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Riverhead Harrison Ave

889 Harrison Ave,

Fl 1

Riverhead, NY 11901

Get Directions
ds-icon--pin Created with Sketch.

21.65 mi away

Schedule Appointment 631-727-7727
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: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bridgeport Barnum Avenue - Employer Drug Testing Not Offered

1450 Barnum Ave,

Bridgeport, CT 06610

Get Directions
ds-icon--pin Created with Sketch.

22.33 mi away

Schedule Appointment 475-988-0509
Monday: 7:30 am-2:00 pm
Tuesday: 7:30 am-2:00 pm
Wednesday: 7:30 am-2:00 pm
Thursday: 7:30 am-2:00 pm
Friday: 7:30 am-2:00 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bridgeport East Main Street - Employer Drug Testing Not Offered

970 E. Main St,

Bridgeport, CT 06608

Get Directions
ds-icon--pin Created with Sketch.

22.57 mi away

Schedule Appointment 203-212-5824
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 - Syosset

269 Jericho Tpke,

Syosset, NY 11791

Get Directions
ds-icon--pin Created with Sketch.

22.78 mi away

Schedule Appointment 516-677-5355
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-12:00 pm
Sunday: Closed
Quest Diagnostics - Stratford Main Street - Employer Drug Testing Not Offered

2890 Main Street,

Stratford, CT 06614

Get Directions
ds-icon--pin Created with Sketch.

23.03 mi away

Schedule Appointment 203-455-9003
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Bethpage

4276 Hempstead Tpke,

Bethpage, NY 11714

Get Directions
ds-icon--pin Created with Sketch.

23.24 mi away

Schedule Appointment 516-677-7701
Monday: 6:00 am-3:30 pm
Tuesday: 6:00 am-3:30 pm
Wednesday: 6:00 am-3:30 pm
Thursday: 6:00 am-3:30 pm
Friday: 6:00 am-3:30 pm
Saturday: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Fairfield Black Rock - Employer Drug Testing Not Offered

2150 Black Rock Turnpike,

Bank of America Building, 2nd Floor

Fairfield, CT 06825

Get Directions
ds-icon--pin Created with Sketch.

23.35 mi away

Schedule Appointment 203-418-4459
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: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Norwalk 148 East Avenue - Employer Drug Testing Not Offered

148 East Avenue,

Norwalk, CT 06851

Get Directions
ds-icon--pin Created with Sketch.

23.87 mi away

Schedule Appointment 475-208-6963
Monday: 7:30 am-4:30 pm
Tuesday: 7:30 am-4:30 pm
Wednesday: 7:30 am-4:30 pm
Thursday: 7:30 am-4:30 pm
Friday: 7:30 am-4:30 pm
Saturday: 7:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Seaford

850 Hicksville Rd,

Ste 114

Seaford, NY 11783

Get Directions
ds-icon--pin Created with Sketch.

24.02 mi away

Schedule Appointment 516-677-7716
Monday: 6:00 am-11:00 am , 12:00 pm-2:30 pm
Tuesday: 6:00 am-11:00 am , 12:00 pm-2:30 pm
Wednesday: 6:00 am-11:00 am , 12:00 pm-2:30 pm
Thursday: 6:00 am-11:00 am , 12:00 pm-2:30 pm
Friday: 6:00 am-11:00 am , 12:00 pm-2:30 pm
Saturday: Closed
Sunday: Closed
Quest Diagnostics - Bridgeport Beechmont - Employer Drug Testing Not Offered

3180 Main St,

Beechmont Building, 1St Floor

Bridgeport, CT 06606

Get Directions
ds-icon--pin Created with Sketch.

24.07 mi away

Schedule Appointment 475-988-0510
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-12:00 pm
Sunday: Closed
Quest Diagnostics - Massapequa Park

4900 Merrick Road,

2nd Fl

Massapequa Park, NY 11762

Get Directions
ds-icon--pin Created with Sketch.

24.14 mi away

Schedule Appointment 516-677-7736
Monday: 6:00 am-3:30 pm
Tuesday: 6:00 am-3:30 pm
Wednesday: 6:00 am-3:30 pm
Thursday: 6:00 am-3:30 pm
Friday: 6:00 am-3:30 pm
Saturday: 6:00 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Milford - Employer Drug Testing Not Offered

233 Broad St,

Milford, CT 06460

Get Directions
ds-icon--pin Created with Sketch.

24.17 mi away

Schedule Appointment 203-306-5066
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: 6:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Norwalk Cross Street - Employer Drug Testing Not Offered

40 Cross St,

Ste 260

Norwalk, CT 06851

Get Directions
ds-icon--pin Created with Sketch.

24.74 mi away

Schedule Appointment 475-208-6966
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: 7:30 am-12:00 pm
Sunday: Closed
Quest Diagnostics - Darien

557 Post Rd,

Darien, CT 06820

Get Directions
ds-icon--pin Created with Sketch.

24.99 mi away

Schedule Appointment 475-328-4366
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

Our focus on your safety

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.

Learn More

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.