Mercy Clinic Internal Medicine - Zumbehl Road

1820 Zumbehl Road
Suite 120A
St. Charles, MO 63303-2761
Fax: (636) 928-0397
Hours of Operation:
Monday: 8:30 a.m. - 4 p.m. Tuesday: 9 a.m. - 5 p.m. Wednesday - Friday: 8:40 a.m. - 4 p.m.
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You don’t often think about your doctor until you get sick. The internal medicine doctors at Mercy Clinic Internal Medicine in Saint Charles, MO want to change that. Being well between visits is just as important. Our internal medicine doctors focus on education and answering your health care questions and concerns, enabling you to take an active part in your health care. And our team is also linked to numerous medical specialists and a full range of diagnostic laboratory and imaging services when you need them.

Mercy internal medicine doctors are connected by our advanced electronic health record system, so your most up-to-date medical information is instantly available to the caregivers at each point of medical care.  In addition, you can take advantage of MyMercy, an online service to view test results, make appointments, and send secure messages to your doctor and more –anytime and anywhere.

Our Providers

Tejaswini R. Nayak, MD, Mercy
Internal Medicine
Mercy Clinic
Offers:
E-Visits, Schedule Online
Theresa Lynn Rehg, NP, Mercy
Family Medicine
Mercy Clinic
Offers:
Schedule Online
Amanda Jewel Sileo, DO, Mercy
Internal Medicine
Mercy Clinic
Offers:
E-Visits, Schedule Online