About Susannah Spiess, MD

Susannah E. Spiess, MD, a gastroenterologist at Endeavor Health, specializes in general gastroenterology, women’s digestive health and colorectal cancer screening. She provides care for conditions such as inflammatory bowel disease, irritable bowel syndrome and colorectal cancer. Dr. Spiess performs a wide range of endoscopic procedures including colonoscopy, EGD and small bowel enteroscopy. She also speaks German, expanding her ability to connect with a diverse patient population.

Overview

  • Languages English, German
  • Gender Female

Clinical focus

  • General gastroenterology
  • Gastroenterology (GI)

Procedures performed

  • Colonoscopy
  • Esophagogastroduodenoscopy (EGD)
  • Botox injection
  • Bravo placement
  • Flexible sigmoidoscopy
  • General gastroenterology
  • Percutaneous endoscopic gastrostomy (PEG)
  • Small bowel enteroscopy
  • Tumor ablation
  • Variceal and non variceal hemostasis
  • Colonscopy
  • Upper endoscopy (EGD)

Conditions treated

  • Irritable bowel syndrome (IBS)
  • Colorectal cancer
  • Inflammatory bowel disease (IBD)

Board specialties

  • Gastroenterology (GI)
Endeavor Health Medical Group
2150 Pfingsten Rd., Suite 3000
Glenview, IL 60026-1314
(847) 657-1900 Get directions
Medical School
  • 1990
    Northwestern Feinberg School of Medicine
Residencies
  • 1993
    Internal Medicine
    McGaw Medical Center of Northwestern University
Fellowships
  • 1995
    Gastroenterology
    Rush-Presbyterian-St Luke's Medical Center
Board certifications
  • 1995
    Gastroenterology
    American Board of Internal Medicine
4.6
Learn more about ratings
Reviews (8)
September 30, 2025
Dr. Spiess is a wonderful diagnostician--she asks the right questions to get to the heart of the problem.
September 13, 2025
Excellent physician
September 12, 2025
I was given an immediate appointment which was just what I needed on the same day I called with my concerns
September 1, 2025
My Visit at Endeavor Health was Good. The staff and Dr. Spiess were exceptionally helpful to my visit needs.
August 20, 2025
Dr Speiss is outstanding
August 8, 2025
I was excited to actually see a GI, MD instead of an APN, thinking the MD would have more ideas. I needed the doctor to really lean and really hear me. I was hoping for new insights, new directions. She was polite and provided basic information, most of which I already knew. My PCP had recommended I reach out to GI but it was pretty much a waste of time, probably for her as well
July 16, 2025
Staff & Doctor OUTSTANDING!
July 16, 2025
Dr. Spiess is very thorough and asked a comprehensive list of questions to try to figure out my situation.
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