Cystic Fibrosis


    Cystic fibrosis is an inherited disease that affects the cells that produce mucus, sweat, and digestive fluid. The affected fluid may then plug up certain tubes and ducts in the body, particularly in the lungs and digestive system. Symptoms vary and can include cough, repeated lung infections, inability to gain weight, and fatty stools. Treatments may ease symptoms and reduce complications.

    Our doctors


    Nathalie Foray, DO

    Pulmonology, Internal Medicine

    Mark Johnson, MD

    441 West Hay Street 2nd Floor Decatur, IL 62526

    Anwar Shafi, MD

    Pediatric Pulmonologist Pediatrics
    301 N. 8th St. Suite 4A Springfield, IL 62701

    Why SIU

    Continually learning

    With a focus on continual improvement, our doctors take the time to research, study and innovate to provide the latest treatments for our patients.

    Patient-first experience

    Our care ranges from primary care physicians to specialists and sub-specialists who have advanced training. We're here for you when you need us.

    Breakthrough technology

    Continually teaching the next generation of doctors, our physicians use the latest developments in procedures and technologies for our patients.