SSM Health Medical Group
David Westrich, MD
Gastroenterology, Internal Medicine

SSM Health Medical Group
400 First Capitol Drive, Suite 201 St. Charles, MO 63301
Dr. David Westrich is a gastroenterologist who treats patients ages 18 and older. He diagnoses and treats various gastrointestinal (GI) conditions, including heartburn, acid reflux, swallowing problems, upset stomach, upper abdominal pain, stomach and intestinal ulcers, irritable bowel syndrome (IBS), functional dyspepsia, blood in the stool, chronic constipation, fecal incontinence, and inflammatory bowel disease. He also performs colon cancer screenings, colon polyp removals, upper GI endoscopies, and lower GI colonoscopies.
Dr. Westrich provides patients with compassionate care, communicating clearly and honestly, while developing a treatment plan that matches each patient's needs and goals. His patients appreciate that he listens, is very thorough, and takes the time to explain conditions and any proposed treatments.
Dr. Westrich is a member of the American Medical Association; American Gastroenterological Association; American College of Gastroenterology; and American Society for Gastrointestinal Endoscopy.
Fun fact: Before becoming a doctor, Dr. Westrich wanted to be a math teacher.
Dr. Westrich provides patients with compassionate care, communicating clearly and honestly, while developing a treatment plan that matches each patient's needs and goals. His patients appreciate that he listens, is very thorough, and takes the time to explain conditions and any proposed treatments.
Dr. Westrich is a member of the American Medical Association; American Gastroenterological Association; American College of Gastroenterology; and American Society for Gastrointestinal Endoscopy.
Fun fact: Before becoming a doctor, Dr. Westrich wanted to be a math teacher.
About Me
Specialties
Gastroenterology
Internal Medicine
Gender
Male
Education
Saint Louis University School of Medicine
Residency, 2019
Saint Louis University School of Medicine
Fellowship, 2022
Saint Louis University
Medical School, 2016
Hospital Affiliations
SSM Health St. Joseph Hospital - Lake Saint Louis
SSM Health St. Joseph Hospital - St. Charles
Certifications
American Board of Internal Medicine
American Board of Internal Medicine/Gastroenterology
Drug Enforcement Administration
Missouri Dept of Health/Narcotics&Dangerous Drugs
Missouri State Board of Registration
Medical Interests
Abdominal pain
GERD Gastroesophageal reflux disease
Esophageal motility disorders
Swallowing disorders dysphagia
Constipation
Inflammatory bowel disease (IBD)
Upper endoscopy
Peptic ulcer
Ulcer treatment
Ulcerative colitis
Ulcers
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.
Map & Directions
SSM Health Medical Group
400 First Capitol Drive, Suite 201 St. Charles, MO 63301
Mon
8:30 am - 5:00 pm
Tue
8:30 am - 5:00 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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