SSM Health Medical Group
Peter Fonseca, MD
Cardiothoracic Vascular Surgery, General Surgery, Thoracic Surgery

SSM Health Heart & Vascular Care
400 First Capitol Drive, Suite 100 St. Charles, MO 63301
Dr. Fonseca is an experienced thoracic surgeon with a number of years in private practice. He earned his medical degree from Saint Louis University, completed his internship and residency at Wright State University and his fellowship at the Medical College of Wisconsin. Additionally, Dr. Fonseca completed his doctorate from Purdue University in Biochemistry.
Dr. Fonseca is board certified in thoracic and general surgery. He has special interest in minimally invasive lobectomies utilizing the daVinci Surgical system.
Dr. Fonseca is board certified in thoracic and general surgery. He has special interest in minimally invasive lobectomies utilizing the daVinci Surgical system.
About Me
Specialties
Cardiothoracic Vascular Surgery
General Surgery
Thoracic Surgery
Gender
Male
Education
Purdue University
Doctor of Philosophy, 1983
Wright State University - School of Medicine
Residency, 1992
Medical College of Wisconsin
Fellowship, 1994
St. Louis University School of Medicine
Medical School, 1987
Wright State University - School of Medicine
Internship, 1988
Hospital Affiliations
SSM Health DePaul Hospital - St. Louis
SSM Health St. Joseph Hospital - St. Charles
Certifications
American Board of Surgery
American Board of Thoracic Surgery
Drug Enforcement Administration
Missouri Dept of Health/Narcotics&Dangerous Drugs
Missouri State Board of Registration
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 Clearly4.8Knew Medical History4.9Involved 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.
4.9 out of 5
41 ratings,
14 reviews
6/24/2026
I'm sure he is very good at what he does. Very knowledgeable and nice.
5/15/2026
Knowledge
5/1/2026
Professional and compassionate care
4/8/2026
very good doctor
2/10/2026
Professional
Map & Directions
SSM Health Heart & Vascular Care
400 First Capitol Drive, Suite 100 St. Charles, MO 63301
Mon
8:00 am - 4:00 pm
Tue
8:00 am - 4:00 pm
Wed
8:00 am - 4:00 pm
Thu
8:00 am - 4:00 pm
Fri
8:00 am - 4:00 pm
Sat
Closed
Sun
Closed
