Quest Diagnostics

Lab Testing at Quest Diagnostics - Guilford - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Guilford, CT 06437.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

631 Boston Post Rd
Guilford, CT 06437
New Haven County

203-884-1274

Hours

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	Closed
Sunday	Closed

Nearby alternatives

Quest Diagnostics - Madison
11 Woodland Rd Woodland Office Park Unit 3b, Madison, CT 06443
3.5 mi
Quest Diagnostics - Branford 2
1075 W Main St Ste 2 Branhaven Plaza, Branford, CT 06405
8.5 mi
Quest Diagnostics - East Haven - Employer Drug Testing Not Offered
190 Main St East Haven Mall/Petonitos, East Haven, CT 06512
10.4 mi
LabCorp East Haven
205 Main Street 2nd Floor, East Haven, CT 06512
10.5 mi
Quest Diagnostics - North Haven - Employer Drug Testing Not Offered
172 Washington Ave, North Haven, CT 06473
12.1 mi

About this location

Quest Diagnostics Patient Service Center. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.