SSM Health Medical Group
Erin McKeon, APRN-CNP
Family Nurse Practitioner, Nurse Practitioner, Endocrinology

SSM Health Medical Group
301 Caledonia Parkway, Suite 150 O Fallon, MO 63368
Erin McKeon, MSN, APRN, FNP-C is a family nurse practitioner who specializes in endocrinology, providing care for adults 18 and older. She focuses on the diagnosis, treatment, and long-term management of endocrine conditions, including type 1 and type 2 diabetes, thyroid disorders, and weight management. Erin also offers diabetes education and support to help patients take control of their health.
With a background in family practice, pediatric endocrinology, orthopedics, and emergency room nursing, Erin brings a well-rounded perspective to her care. She is passionate about building strong relationships with her patients and believes in treating each person with the same care and attention she would give her own family.
Her goal is to partner with patients to address their health needs with compassion, empathy, and evidence-based care, while encouraging them to lead healthy lifestyles and achieve their personal wellness goals.
Erin is a member of the American Academy of Nurse Practitioners and is licensed through the Missouri State Board of Nursing.
With a background in family practice, pediatric endocrinology, orthopedics, and emergency room nursing, Erin brings a well-rounded perspective to her care. She is passionate about building strong relationships with her patients and believes in treating each person with the same care and attention she would give her own family.
Her goal is to partner with patients to address their health needs with compassion, empathy, and evidence-based care, while encouraging them to lead healthy lifestyles and achieve their personal wellness goals.
Erin is a member of the American Academy of Nurse Practitioners and is licensed through the Missouri State Board of Nursing.
About Me
Specialties
Family Nurse Practitioner
Nurse Practitioner
Endocrinology
Gender
Female
Education
Saint Louis University
Bachelor of Science in Nursing, 2017
University of Missouri- Kansas City
Master of Science in Nursing, 2021
Hospital Affiliations
SSM Health DePaul Hospital - St. Louis
SSM Health St. Joseph Hospital - St. Charles
Certifications
American Academy of Nurse Practitioners
Missouri State Board of Nursing
Medical Interests
Diabetes management
Diabetes
Thyroid disorders
Weight management
Reviews
Rating Breakdown
Reviews are measured on a scale of 1 to 5, with 5 being the best score.
Question Breakdown
5.0Overall Experience5.0Listened Carefully4.9Explained Things Clearly4.9Knew Medical History5.0Involved 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.
5 out of 5
36 ratings,
14 reviews
6/4/2026
Very helpful!
6/2/2026
It was great to meet you and I look forward to seeing you again.
5/7/2026
I enjoyed getting to meet her. She made me feel Very comfortable at my appointment.
3/4/2026
Very helpful.
2/27/2026
She cares about her patients.
Map & Directions
SSM Health Medical Group
301 Caledonia Parkway, Suite 150 O Fallon, MO 63368
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
Closed
Sat
Closed
Sun
Closed
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