Achieve the Best Patient Care Outcomes

ACL Laboratories has one of the nation’s largest networks of dedicated pathologists who provide a full range of anatomic and clinical pathology services throughout Illinois, Wisconsin and Northern Indiana. With over 90 pathologists board certified by the American Board of Pathology in Anatomic Pathology, Clinical Pathology or both, Great Lakes Pathologists, S.C. and Midwest Diagnostic Pathology, S.C. deliver unsurpassed pathology services. Our pathologists examine more than 500,000 cases annually, including tissue biopsies, gynecologic and non-gynecologic cytology specimens, bone marrow samples, flow cytometry cases and cytogenetics samples. In addition, many of our pathologists have completed fellowships and have additional subspecialty board certification.

Our consultative approach to pathology has enabled us to build strong relationships with physicians proving that interactive diagnostic collaboration is at the heart of excellent healthcare.

Pathology Expertise

  • Nephropathology
  • Neuropathology
  • Pulmonary Pathology
  • Surgical Pathology
  • Transfusion Medicine
  • Transplant Pathology


Great Lakes Pathologists, S.C. (PDF)

Great Lakes Pathologists Contact Information:

(414) 649-7340 or (414) 328-7950

Midwest Diagnostic Pathology, S.C. (PDF)

Pathologists' Main Number


Pathologists' Fax Number


Main Billing Number