Through our exceptional health
care services, we reveal
the healing presence of God.

St. Mary's Laboratory Services 


Serving patients’ needs by providing exceptional clinical laboratory services
Our vision: To be a leader in providing excellence in clinical laboratory services to our patients and healthcare community by providing a comprehensive array of testing and to maintain an innovative environment with respect and dignity for all.

High Quality and Cost Effective Laboratory Services

St Mary’s Laboratory Services (SLS) originated in 1972 as a joint venture between St Mary’s and Methodist Hospitals providing laboratory services to area hospitals, clinics and private physicians' offices. First named Interlab and then Shared Laboratory Services in 1977, the name was again changed to St. Mary’s Laboratory Services in 1987 when Methodist was acquired by another local hospital. St. Mary's Laboratory Services carries on the tradition of providing high quality and cost effective laboratory services to our various customers large and small in south-central and southwestern Wisconsin.

 Helpful links
Test Catalog
Laboratory Newsletters
Client Forms

Who is St. Mary's Laboratory Services?

Laboratory test results comprise about 70 percent of a patient’s medical record. Medical diagnoses and treatment decisions depend on timely and accurate test results. Working behind the scenes, laboratory professionals are a critical component of the health care team.

The St. Mary’s laboratory team provides exceptional patient care services through the professional collaboration among pathologists, laboratory technologists, technicians, technical specialists, lab assistants, pathology assistants, transcriptionists, customer service assistants, lab courier services, and other exceptional members of our health-care team. The group is made up of over 150 qualified employees, operating 24/7 in most sections of the laboratory.

Services available include:

  • Surgical Pathology
  • Microbiology
  • Chemistry
  • Hematology
  • Flow Cytometry
  • Coagulation
  • Immunology
  • Point of Care Testing

View our Licensing and Accreditation

Contact us at:
608-259-5865 (fax)

St. Mary's Hospital     700 South Park Street     Madison, WI 53715-0450     (608) 251-6100
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All Rights Reserved.     A Member of SSM Health
SSM Health Care Wisconsin