About the Doctors
How to book
- Click Book Appointment call +1 573-458-6326 .
- Use provider online portal: mercy.net/doctor/william-mark-barnett-md.
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Frequently Asked Questions about William Mark Barnett, MD
Where is the William Mark Barnett, MD situated at?
William Mark Barnett, MD is situated at 1605 Martin Springs Dr Suite 230, Rolla, Missouri, United States.
How can I book an appointment at William Mark Barnett, MD?
You can book an appointment by clicking the "Book Appointment" button on this page or by calling the hospital directly.
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Information last updated: June 30, 2026