Mercy Clinic Women's Health - Clayton-Clarkson

15945 Clayton Road
Suite 305
Ballwin, MO 63011
Fax: (636) 256-5370
Hours of Operation:
Monday: 9 a.m. - 5 p.m. Tuesday: 10 a.m. - 6 p.m. Wednesday: 10 a.m. - 5 p.m. Thursday: 9 a.m. - 5 p.m. Friday: 9 a.m. - 3 p.m.
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As professional women and mothers, we understand the unique health care needs of women of every generation. In this changing healthcare environment, our OB/GYN practice is designed to accommodate the complex needs of our patients. We have offices in both O'Fallon and Ballwin. Please contact our office by calling 636-240-0130 to schedule an appointment at either location.

Our comprehensive women’s health care services emphasize preventative care from the adolescent to postmenopausal stages of life.  We are committed to providing state-of-the-art surgical methods and up to date evidence based medicine. We are experienced in management of high risk pregnancies but also encourage a low risk, low intervention pregnancy care model.

Did you know?

In addition to OB/GYN care, Dr. Gretchen Levey is now offering a weight loss management program for her patients. For more information on this program, please contact Dr. Levey, at 636-240-0130.

Dr. Leah Glass was recently featured on the website Motherly. Read her article about balancing her life as a young mom and an OB/GYN.

Patient Resources

Women’s Health Forms

We would like to make your visit with Mercy Clinic Women’s Health as pleasant as possible. To save time, feel free to complete our women’s health forms before your appointment. The patient intake form is available in both an electronic and printed version. If you choose to complete the printed version, please bring it with you on the day of your appointment. We hope to see you soon!

Patient Education

A comprehensive set of information and knowledge, combined with personal care and support is the key to our practice. To supply our patients with the as much quality information as possible we have compiled an independent list of educational resources. This list of resources will be beneficial to both our patients and their loved ones. Click on Patient Education above for the complete listing of resources. For answers to your most frequently asked questions, please click on FAQs on the right side of this website.

Visit MyMercy

MyMercy is your portal to your patient information and a way for you to contact your doctors, request appointments and prescription refills, get lab results and pay your bills online.


Our Providers

Terri L. Bauer, WHNP, Mercy
Obstetrics and Gynecology
Mercy Clinic
Christina Lee Byron, MD, Mercy
Obstetrics and Gynecology
Mercy Clinic
Leah Rose Glass, DO, Mercy
Obstetrics and Gynecology
Mercy Clinic
Gretchen H. Levey, MD, Mercy
Obstetrics and Gynecology
Mercy Clinic
Margaretta L. Mendenhall, MD, Mercy
Obstetrics and Gynecology
Mercy Clinic