Quest Diagnostics

Lab Testing at Quest Diagnostics - Mercy Watson Rd

Quest Diagnostics Patient Service Center in Saint Louis, MO 63119.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

7345 Watson Rd Lower Level Section 2
Saint Louis, MO 63119
St. Louis County

314-704-4998

Hours

Monday	7:30 AM – 5:00 PM
Tuesday	7:30 AM – 5:00 PM
Wednesday	7:30 AM – 5:00 PM
Thursday	7:30 AM – 5:00 PM
Friday	7:30 AM – 5:00 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

LabCorp Saint Louis
6555 Chippewa St Ste 150, Saint Louis, MO 63109
1.3 mi
LabCorp Saint Louis
1035 Bellevue Ave Ste 314, Saint Louis, MO 63117
3.6 mi
LabCorp Saint Louis
28 Ronnies Plz, Saint Louis, MO 63126
4.3 mi
Quest Diagnostics - Kirkwood - Employer Drug Testing Not Offered
461 S Kirkwood Rd, Kirkwood, MO 63122
4.6 mi
Quest Diagnostics - West Pine
40 N Kingshighway, Saint Louis, MO 63108
5.2 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.