Integris Marshall County Medical Center is a critical access hospital located in Madill, Oklahoma. The hospital serves all of Marshall County and Lake Texoma along with the southern edge of Johnston County which includes Tishomingo, and the communities of Gordonville and Whitesboro in north central Texas.
The hospital is accredited by the Healthcare Financing Administration as a Medicare provider, is accredited by the Joint Commission on Accreditation of Healthcare Organizations, and is a member of the Oklahoma Hospital Association and VHA Inc.