SSM Health Medical Group
Katherine Dewey, MD
Obstetrics and Gynecology

SSM Health Medical Group
1475 Kisker Road, Suite 200 St. Charles, MO 63304
Dr. Dewey is a board certified specialist in obstetrics and gynecology and a Fellow of the American College of Obstetricians and Gynecologists. Dr. Dewey earned her medical degree at New York University and was at the University of Chicago Hospitals for her ob/gyn residency, which included a year as administrative chief resident. After completing residency training, Dr. Dewey served four years as an instructor of clinical obstetrics and gynecology at the University of Chicago Hospitals.
Dr. Dewey's medical interests include routine well-woman services, as well as guidance related to family planning, management of infertility, menopause management, emergency and routine gynecologic care and minimally invasive surgical techniques.
Currently only accepting new Gynecology patients.
Dr. Dewey's medical interests include routine well-woman services, as well as guidance related to family planning, management of infertility, menopause management, emergency and routine gynecologic care and minimally invasive surgical techniques.
Currently only accepting new Gynecology patients.
About Me
Specialties
Obstetrics and Gynecology
Gender
Female
Education
The University of Chicago Hospitals and Clinics
Residency, 1998
New York University School of Medicine
Medical School, 1994
Hospital Affiliations
SSM Health St. Joseph Hospital - St. Charles
Certifications
American Board of Obstetrics & Gynecology
Drug Enforcement Administration
Missouri Dept of Health/Narcotics&Dangerous Drugs
Missouri State Board of Registration
Medical Interests
Adolescent pregnancy
Well woman exam
Reviews
Rating Breakdown
Reviews are measured on a scale of 1 to 5, with 5 being the best score.
Question Breakdown
4.7Overall Experience4.7Listened Carefully4.7Explained Things Clearly4.6Knew Medical History4.7Involved in Care Decisions4.7Showed 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.
4.7 out of 5
111 ratings,
28 reviews
6/14/2026
She was nice
6/11/2026
,Dr. Dewey took her time with me. She was through, asked questions, listened and gave her suggestions. She also explained alternatives and their side effects. Very helpful for me.
5/29/2026
Informative visit and explained changes in care/treatment as I age.
5/8/2026
Dr. Dewey is extremely knowledgeable, is thorough, is easy to talk to, she provides the best care available for her patients. I highly recommend her!
4/27/2026
She stayed on time seeing patients.
Map & Directions
SSM Health Medical Group
1475 Kisker Road, Suite 200 St. Charles, MO 63304
Mon
8:30 am - 5:00 pm
Tue
8:00 am - 6:00 pm
Wed
8:30 am - 5:00 pm
Thu
8:30 am - 5:00 pm
Fri
8:30 am - 5:00 pm
Sat
Closed
Sun
Closed
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