Quest Diagnostics - Mercy Tower A
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
- 621 S New Ballas Rd, Suite 23, Saint Louis, MO 63141-8232
- 314-610-5793
- Fax 314-983-9298
- Mon6:30 am to 5:00 pmTue6:30 am to 5:00 pmWed6:30 am to 5:00 pmThu6:30 am to 5:00 pmFri6:30 am to 5:00 pmSat8:00 am to 12:00 pmSunClosed
- Get directions
Other locations nearby
- 1Mercy Imaging Services - Mercy Hospital St. Louis0.1 mi›
- 2Quest Diagnostics - Mercy Center for prformance Medicine0.3 mi›
- 3Mercy Imaging Services at the Mercy Center for Performance Medicine0.3 mi›
- 4DexaFit - Town & Country4.1 mi›
- 5Quest Diagnostics - Kirkwood5.2 mi›