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CIC Associates, P.C.

Sleep Centers

Locations at: Clive, IA - Pella, IA - Ames, IA - Grinnell, IA


  • Sleep Centers

    Melisa A. Coaker, M.D. is the medical director of the Sleep Center at Mercy Hospital Medical Center. Dr. Coaker, along with Drs. Wendy Fluegel, Roger Liu, Jason Wittmer, Monica Hoffman and Nguyen-Ly Huynh, PA-C specialize in all areas of sleeping disorders and their treatments, with special interest in sleep apnea and hypoventilation disorders. All five physicians are board certified in Sleep Medicine.

    Conditions treated in pediatric and adult patients: Sleep apnea, insomnia, restless legs syndrome, disorders of hypersomnia (i.e. narcolepsy), circadian rhythm disorders (i.e. shift work disorder), and parasomnias (complex sleep behaviors such as sleepwalking). We also assess patients for bariatric surgery and DOT driving clearance. Available testing includes: Home and in-lab sleep study testing (polysomnography), Maintenance of Wakefulness Testing (MWT), Multiple Sleep Latency Testing (MSLT), Actigraphy, and nocturnal pulse oximetry. It should also include that overnight sleep studies are performed 7 days a week (excluding holidays).

    » Mercy Sleep Center


    » Pella Sleep Disorders Center

  • Mercy Sleep Center, Des Moines, IA
    1449 NW 128th Street., Ste. 100
    Clive, IA 50325
    (515) 224-3948



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  • Pella Sleep Disorders Center, Pella, IA
    404 Jefferson Street
    Pella, IA 50219
    (641) 628-6787



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  • Mercy Sleep Center of Ames, Ames IA
    1816 Philadelphia Ave.
    Ames, IA 50010
    (515) 232-2605



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  • Mercy Sleep Center of Grinnell, Grinnell IA
    210 4th Ave.
    Grinnell, IA 50112
    (641) 236-7511



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What We Do....

Care of patients is performed by our medical specialists in either an inpatient or outpatient setting. It is the goal of our physicians to provide this diversified and versatile care of patients in the highest professional manner.

The medical practice, which is also known as CIC Associates, is pleased to provide this web site which includes a directory of our services and biographical sketches of our physicians for your use. Please call us at any time if we can be of assistance to you and your patients.

CIC Associates is a referral-based practice. This means that a primary care physician or another specialist refers patients to our practice to evaluate a problem.