Whether you’re already a client or interested in working with us, we’re here to help.

Telephone (8 a.m. – 5 p.m. CST)

Toll Free: 855-258-8554
Local: 314-747-1100
Fax: 314-362-4080

Email: PathologyServices@wustl.edu
Web: dls.wustl.edu

Specimen delivery address

Washington University Diagnostic Laboratory Services
509 South Euclid Ave
Saint Louis, MO 63110

Mailing address

660 South Euclid Ave
Campus Box 8118
Saint Louis, MO 63110