Sleep Disorders Center


The OSF Saint Francis Sleep Disorders Center is a source of help for adults, children and infants with sleep disorders. A comprehensive array of services is provided with professional care in a comfortable, warm environment. Sarah Nath Zallek, MD, a board certified sleep specialist and neurologist, is director of the Center.

Margaret Vogelsang, R.N. PA-C, a physician assistant with a masters degree in adult education, and Teresa Valerio, M.S., A.M.S.N., A.P.N., C.N.P., a family nurse practitioner, work very closely with Dr. Zallek caring for patients in the center. Evaluation, testing, interpretation of studies and follow-up are all done in one state-of-the-art center. Dr. Zallek and the Sleep Disorders Center staff take great pride in the fact that patients receive not only professional evaluation and testing, but also exceptional follow-up and support.

Testing for sleep disorders normally requires and overnight sleep study. Therefore, the sleep study bedrooms have been designed with the comforts of home. Patients enjoy a queen-sized bed, private full bath, television, desk with a data port, recliner and more.

Testing is painless. Experienced technologists use integrated digital video imaging for recording the studies. This allows the physicians to interpret the patient's sleep data and sleep-related behavior at once. The Center is a resource for physicians with patients needing sleep evaluation and/or testing.

Physician referral is required. Referring physicians receive timely reports of all consultations and test results.

Common Sleep Disorders

To schedule an appointment call (309) 624-9960. Appointments by physician referral only.

Clinic Location
INI Diagnostic Center
6th Floor Glen Oak Building
OSF Saint Francis Medical Center
530 NE Glen Oak Avenue
Peoria, IL 61637

 

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