Quest Diagnostics - Mercy Watson Rd
Blood draws in Saint Louis. Instalab handles your order, results delivery, and physician review; pick your appointment time at checkout.

Available services
Below are popular panels at this location, and 600+ other tests are available under Build your own panel. Physician order and results are included. This facility charges $12 per blood draw, which is added at checkout.
The broadest starting point, covering 60+ biomarkers in a single blood draw.
$299ApoB, Lp(a), cholesterol, inflammation and glucose markers that drive heart risk.
$99Total and free testosterone with SHBG, LH and FSH for the full hormone picture.
$53Galleri® Multi-Cancer Early Detection Test
Screen for 50+ cancers with a single blood draw.
$849Build your own panel
Pick exactly the biomarkers you want from Instalab's full test menu, then your appointment time at checkout.
Already have a lab order?
If a doctor or another service gave you a lab order, pick your appointment time at this location and bring the order with you.
- Book onlinePick your time at checkout.
- No doctor's order neededWe provide the physician order.
- Upfront pricingSee your total before you pay.
- Results and an action planPhysician-reviewed, sent to you.
Common questions
Contact
- 7345 Watson Rd, Lower Level Section 2, Saint Louis, MO 63119-9804
- 314-704-4998
- Fax 314-832-2926
- Mon7:30 am to 5:00 pmTue7:30 am to 5:00 pmWed7:30 am to 5:00 pmThu7:30 am to 5:00 pmFri7:30 am to 5:00 pmSatClosedSunClosed
- Get directions
Other locations nearby
- 1Quest Diagnostics - Kirkwood4.6 mi›
- 2Mercy Imaging Services - Kirkwood4.7 mi›
- 3Quest Diagnostics - West Pine5.2 mi›
- 4Quest Diagnostics - Tesson Kennerly5.8 mi›
- 5Mercy Imaging Services - Sindelar Cancer Center5.9 mi›