SSM Health Dean Medical Group
Erin Lange, MD
General Surgery, Colon and Rectal Surgery

Erin Lange is board certified in general surgery and colon and rectal surgery. She obtained her undergraduate degree from Northwestern University in Evanston, IL and her master's in population health from the University of Wisconsin School of Medicine and Public Health in Madison. WI. She earned her medical degree from the University of Washington School of Medicine in Seattle, WA. Dr. Lange completed her internship, residency, and a research fellowship in general surgery at the University of Wisconsin Hospital and Clinics - Madison. She then went on to complete a fellowship in colorectal surgery at the University of Minnesota Medical Center in Minneapolis, MN. In addition, she completed a year-long course in advanced healthcare training in ethics at the University of Washington - Seattle.
Lange's practice is focused on colon and rectal cancer, inflammatory bowel disease, diverticulitis, complex anorectal disorders, anorectal ultrasound and colonoscopy, and pelvic floor disorders. She has a special interest in minimally invasive surgery including robotic surgery.
Dr. Lange is a member of the American College of Surgeons and the American Society of Colon and Rectal Surgery. She is board certified by the American Board of Surgery and the American Board of Colon and Rectal Surgery.
In her free time, Dr. Lange enjoys running, softball, volleyball, camping, hiking, playing with her two young girls and their dog, and spending time with her husband.
_"I strive to create a trusting and confidential environment in which I can work in partnership with my patients to design an evidence-based care plan tailored to their specific needs and preferences." - Erin O. Lange, MD, MSPH_
Lange's practice is focused on colon and rectal cancer, inflammatory bowel disease, diverticulitis, complex anorectal disorders, anorectal ultrasound and colonoscopy, and pelvic floor disorders. She has a special interest in minimally invasive surgery including robotic surgery.
Dr. Lange is a member of the American College of Surgeons and the American Society of Colon and Rectal Surgery. She is board certified by the American Board of Surgery and the American Board of Colon and Rectal Surgery.
In her free time, Dr. Lange enjoys running, softball, volleyball, camping, hiking, playing with her two young girls and their dog, and spending time with her husband.
_"I strive to create a trusting and confidential environment in which I can work in partnership with my patients to design an evidence-based care plan tailored to their specific needs and preferences." - Erin O. Lange, MD, MSPH_
About Me
Specialties
General Surgery
Colon and Rectal Surgery
Gender
Female
Education
University of Wisconsin Hospital and Clinics
Residency, 2013
University of Washington Seattle
No degree earned, 2019
University of Wisconsin Hospital and Clinics
Internship, 2013
University of Minnesota Medical Center - East Bank
Fellowship, 2014
Hospital Affiliations
SSM Health St. Mary's Hospital - Madison
Certifications
American Board of Colon and Rectal Surgery
American Board of Surgery
Drug Enforcement Administration
Wisconsin Medical Examining Board
Medical Interests
Anorectal disorders
Colon cancer
Colon cancer screening
Colonic motility disorders
Diverticulitis and diverticulosis
Inflammatory bowel disease (IBD)
Pelvic floor dysfunction
Reviews
Rating Breakdown
Reviews are measured on a scale of 1 to 5, with 5 being the best score.
Question Breakdown
4.8Overall Experience4.9Listened Carefully4.8Explained Things Clearly4.7Knew Medical History4.8Involved in Care Decisions5.0Showed Courtesy & Respect
Patient Reviews
SSM Health only displays patient satisfaction data for providers included in our survey process and who have a minimum of 30 returned surveys. The overall rating is an average of all responses to the survey questions listed below. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn more about our survey.
4.8 out of 5
48 ratings,
18 reviews
6/21/2026
A good Doctor and person, it seemed to me a heavy workload may have effected my situation, the care needed came on sudden and she was able to get me in quickly.
6/17/2026
Friendly and knowledgeable, great personality.
6/16/2026
Very grateful to have her as my doctor.
4/28/2026
I am so happy I was referred to Dr Lange - she has changed my life for the better!
4/14/2026
Friendly and knowledgeable in her field.
Map & Directions
SSM Health Dean Medical Group - General Surgery
700 S. Park St.Madison, WI 53715


