Theresa Hayssen, MD - General & Vascular Surgery - Wheaton Franciscan Healthcare

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Patient Rating
4.9 / 5 (Based on 47 Reviews) Read Patient Comments

Theresa Hayssen, MD

Specialties: General Surgery, Vascular Surgery, Robotic Surgery, Colorectal Surgery
"My practice concentrates on the surgical management of colon and rectal diseases. I believe it is important to treat the disease as it relates to the health of the whole person. First is listening to and educating patients. Sometimes the best approach is non-surgical; when surgery is needed, I strive to offer the most advanced and proven surgical option. Always, my goal is to achieve the best possible outcome for my patients."
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Top Doctor
Accepting new patients.


Clinical Interests

  • Colonoscopy
  • Hemorrhoid Surgery
  • Colorectal Cancer Surgery
  • Colon Cancer Screening
  • Benign and Malignant Diseases of the Rectum and Anus
  • Diverticular Disease
  • Minimally Invasive Surgery
  • Anorectal Disorders/Procedures
  • Inflammatory Bowel Diseases
  • Incontinence
  • Colon Polyps/Colon Cancer
  • Pelvic Floor Abnormalities
  • Robotic Assisted Surgery


  • English


  • St. Francis
  • Elmbrook Memorial
  • Franklin


  • Medical School
    1992 Southern Illinois University School of Medicine, Springfield, Illinois
  • Residency
    1997 Southern Illinois University School of Medicine, Springfield, Illinois
  • Fellowship
    1998 Ferguson Clinic, Grand Rapids, Michigan


  • General Surgery
  • Colon & Rectal Surgery

Patient Reviews

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June 07, 2017
Dr saw me as an add on and I was in surgery 4 hrs later due to my situation. I am very grateful! I cannot imagine better care from any provider. Thank you so very much!!
March 21, 2017
I would recommend this doctor to anyone.
August 29, 2016
Dr. Hayssen is a very caring person.
August 16, 2016
Have already recommended her to my husband.
August 01, 2016
She repeated herself a few times regarding the after care procedures, but probably because they are important and many people disregard them.
July 26, 2016
Dr. Hayssen made me feel very comfortable, despite being in need of medical attention for a rather uncomfortable situation.
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