Mercy Clinic Internal Medicine - Patients First Drive

Doctor's Office
901 Patients First Drive
Washington, MO 63090

Main Entrance: Southeast Side of Building


Phone: (636) 239-7500
Fax: (636) 239-2836
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Now Available
Walk-in Hours

Need care now? We offer these walk-in hours for our established patients:  

Mon. - Fri. | 7:30 a.m. – 11 a.m. 
No appointment needed 

The Mercy Clinic Internal Medicine in Washington, MO employs internal medicine doctors that specialize in comprehensive, non-surgical specialty care of adult men and women. Doctors of internal medicine are doctors for adults and focus on the treatment and prevention of chronic diseases.

As your primary care physicians, our internal medicine doctors coordinate your care. They are an invaluable source when you encounter complex problems necessitating coordination between multiple specialists. Our internal medicine physicians care for all their patients throughout life…in the office, in the hospital and in nursing homes.

Mercy Clinic has internal medicine doctors located across the Four Rivers service area.

Meet Our Virtual Assistant

To save you time when calling our clinic, you’ll be greeted by Toni, Mercy’s virtual assistant. Toni can help right away if you’d like to book, change or cancel a visit, or request medication refills from Mercy Pharmacies. Toni is also available through the chat feature here on our website.

If you prefer self-service, log in to your MyMercy  account to make or change appointments, request refills and much more.  

Meet Our Team