Mercy Clinic Primary Care - Warrenton

Doctor's Office
521 Anwijo Way
Warrenton, MO 63383


Phone: (636) 456-6103
Fax: (636) 456-6124
Hours: Opens at 8:00 AM
Now Available
Walk-In Hours

Need care now? We offer walk-in hours for all patients:
Monday - Friday: 8 a.m. - 3:30 p.m. 
No appointment needed 

Establishing a relationship with a Mercy Clinic family doctor is the most effective and efficient way to manage health care for you and your family. At Mercy Clinic Family Medicine in Warrenton, MO our family doctors serve patients of all ages.

Mercy Clinic family doctors physicians are connected by our advanced electronic health record system, so your most up-to-date medical information is instantly available to caregivers at each point of medical care. As a patient, you'll also have access to MyMercy, an app to view test results, make appointments, send secure messages to your doctor and more – anytime, anywhere.

After-hours medical concerns?

Before you go to the ER, call your primary care office nights and weekends for guidance from a full Mercy care team.

Meet Our Team

Charles Patrick Coyne III, MD
Mercy Clinic
Danielle Marie Besand, FNP
Mercy Clinic
Kelsi Elaine Marler, NP
Mercy Clinic
Robert A. Schwenk, FNP
Mercy Clinic