Mercy Clinic Pediatrics - Old Tesson Suite 160

12348 Old Tesson Road
Suite 160
St. Louis, MO 63128
Fax: (314) 467-3801
Hours of Operation:
Monday-Thursday: 8 a.m. - 7:30 p.m. Friday: 8 a.m. - 4:30 p.m. Saturday: 7:30 - 11 a.m. Appointments after 4 p.m. are reserved for same day sick patients.
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Parents know: Kids don’t come with an owner’s manual, and they don’t operate on anyone else’s schedule. The pediatricians at Mercy Clinic Pediatrics on Old Tesson Road in St. Louis, MO, provide a friendly, warm environment for babies and big kids too. Our entire pediatric team works with moms and dads to keep kids healthy and take care of them through all life's little illnesses and bigger health issues.

We are conveniently located in South County, near 270 and Tesson Ferry. Plus, you won't have to travel for tests, X-rays or medication since we offer an on-site lab, radiology, pharmacy and urgent care services.

Our team works with Mercy’s pediatric specialists (over 50 specialties) to address any issue from asthma to orthopedics to urology. We also provide MyMercy, our free, online health management tool that links you to your electronic health record and your pediatrician. You can request appointments, keep in touch with your child’s doctor, view lab results, renew prescriptions and more. Anywhere you have Internet access.

Need Help After Hours? Call our Nurse on Call at (855) 670-6400

Our Other Location:

Mercy Clinic Pediatrics - Arnold
3530 Jeffco Blvd.
Arnold, MO 63010
(636) 461-2142

Visit MyMercy

Connect with your care team and manage your health care online.

Download a Parents' Guide to Child Emergencies

Learn how to handle the most common childhood ailments.

Parent Resources

Our Providers

Megan Leigh Corrie, CPNP, Mercy
Pediatric
Mercy Clinic
Tracey M. Daly-Wilson, MD, Mercy
Pediatric
Mercy Clinic
Molly Anne Friederich, PNP, Mercy
Pediatric
Mercy Clinic
Offers:
E-Visits
Irene Marion Rathjen, PNP, Mercy
Pediatric
Mercy Clinic
Amanda L. Regen, MD, Mercy
Pediatric
Mercy Clinic
Emily J. Riley, PNP, Mercy
Pediatric
Mercy Clinic
Sandeep Rohatgi, MD, Mercy
Pediatric
Mercy Clinic
Diana M. Roukoz, DO, Mercy
Pediatric
Mercy Clinic
Ann M. Schulte, PNP, Mercy
Pediatric
Mercy Clinic
Jennifer Lynn Tietjen, PNP, Mercy
Pediatric
Mercy Clinic
Garland R. Tschudin, MD, Mercy
Pediatric
Mercy Clinic