SSM Health Dean Medical Group
Marissa Decker, MD
Obstetrics and Gynecology

SSM Health Dean Medical Group - OB/GYN
752 N. High Point Road Madison, WI 53717
About Me
Specialties
Obstetrics and Gynecology
Gender
Female
Education
University of Iowa College of Medicine
Medical School, 2015
University of Nebraska Medical Center
Residency, 2019
University of Nebraska Medical Center
Residency, 2019
Hospital Affiliations
SSM Health St. Mary's Hospital - Madison
Certifications
American Board of Obstetrics and Gynecology
Drug Enforcement Administration
Wisconsin Medical Examining Board
Medical Interests
Low intervention birth
Obstetrical care
Postpartum care
Prenatal counseling
Preterm labor and delivery
Womens health
Womens reproductive health
Reviews
Rating Breakdown
Reviews are measured on a scale of 1 to 5, with 5 being the best score.
Question Breakdown
4.8Overall Experience4.8Listened Carefully4.8Explained Things Clearly4.6Knew Medical History4.7Involved in Care Decisions4.9Showed 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
55 ratings,
18 reviews
6/19/2026
Would recommend her to anyone!
6/11/2026
Dr. Decker's bedside manor is approachable and supportive. I appreciate her thoroughness and thoughtfulness in answering my questions.
5/13/2026
She listened to my concerns and she explained to me what to do.
5/8/2026
So friendly and approachable, addressed all our concerns.
5/8/2026
Gentle knowledgeable and kind. Was on time
Map & Directions
SSM Health Dean Medical Group - OB/GYN
752 N. High Point RoadMadison, WI 53717
Mon
8:00 am - 5:00 pm
Tue
8:00 am - 5:00 pm
Wed
8:00 am - 5:00 pm
Thu
8:00 am - 5:00 pm
Fri
8:00 am - 5:00 pm
Sat
Closed
Sun
Closed
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