About Mark Dieterich, MD

Mark Dieterich, MD, a pathologist at Endeavor Health, specializes in cytopathology and serves as Medical Director of Cytology. He applies advanced techniques such as immunohistochemistry and ancillary studies to optimize diagnostic accuracy from small specimens. Dr. Dieterich’s expertise spans gynecologic, breast, genitourinary and gastrointestinal pathology. He emphasizes the integration of histologic and cytologic approaches to ensure precise and meaningful diagnostic insights.

Care philosophy

As an anatomic pathologist with a specialty in cytopathology, I aim to deliver accurate, meaningful diagnoses that help guide the best outcomes for patients. I focus on maximizing diagnostic information from small specimens while preserving material for additional molecular testing when appropriate. By combining histologic and cytologic techniques, I work to ensure each diagnosis supports effective treatment planning and personalized care.

Overview

  • Languages English
  • Gender Male

Clinical focus

  • Pathology (Anatomic & Clinical)

Board specialties

  • Pathology (Anatomic & Clinical)
Endeavor Health Medical Group
2650 Ridge Ave., Department of Pathology
Evanston, IL 60201-1718
Medical School
  • 1989
    University of Chicago Pritzker School of Medicine
Residencies
  • 1994
    Anatomical and Clinical Pathology
    Johns Hopkins Hospital
Fellowships
  • 1995
    Cytopathology
    George Washington University Medical Center
Board certifications
  • 1994
    Anatomic Pathology & Clinical Pathology
    American Board of Pathology
  • 1996
    Cytopathology
    American Board of Pathology
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