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Sinnissippi Centers, Inc., is a community based behavioral healthcare center that has provided quality care to the Illinois residents of Carroll, Lee, Ogle and Whiteside Counties since 1966. Sinnissippi is a fully accredited behavioral healthcare agency by The Joint Commission.

In 2002, Sinnissippi received the Ernest A. Codman Award from The Joint Commission. The following year the American Psychiatric Association honored Sinnissippi with the Psychiatric Services Award. These national honors recognized the agency’s excellence in the use of outcomes measurement by health care organizations to achieve improvements in quality and safety of health care.