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GRMC Sleep Lab

Grinnell Regional Medical Center offers comprehensive sleep lab services for the diagnosis of sleep disorders. Mercy Sleep Center operates the sleep lab at GRMC with sleep tests completed three nights per week.


Dr. Melisa Coaker, MD, MA, with Mercy Sleep Center, provides consultations and diagnosis for patients. She sees patients the first Tuesday of each month in Grinnell.


For more information on sleep disorders, sleep studies, or to schedule a sleep test, please call Mercy Sleep Center, at 515-358-9640.

Preparing for your Sleep Study

In the Sleep Lab