Mercy Laboratory Services - Crestwood

Imaging, Labs or Tests
10024 Watson Road
St. Louis, MO 63126

Phone: (314) 919-2538
Fax: (314) 919-2540
Monday-Friday: 7 a.m. - 5 p.m.
Services are provided by Mercy Hospital St. Louis Learn more »

We offer a full range of lab testing services. Test results are immediately transmitted to your physician’s office. Patients may also have specimens collected and tested here and the results sent to a specialist in another city. In addition to routine lab tests most often requested by your physician, we also provide health screens to promote wellness and reduce health risks in our community.

Holiday Hours

Thanksgiving Eve (11/27/19): 7 a.m. - 3:30 p.m.
Thanksgiving Day (11/28/19): Closed
Day after Thanksgiving (11/29/19): Closed, please visit our Old Tesson laboratory at 12348 Old Tesson Rd., Suite 140, St. Louis, mo 63128

Christmas Eve (12/24/19): 7 a.m. - 3:30 p.m.
Christmas Day (12/25/19): Closed
Day after Christmas (12/26/19): Closed

New Year's Eve (12/31/19): 7 a.m. - 3:30 p.m.
New Year's Day (1/1/20): Closed
Day after New Year's Day (1/2/20): Normal Business Hours