Jen,
Just as Bert suggested.... single click on the combined document, got to "Item" on your desktop toolbar, click "Unstack" then "All pages". This will then unstack the whole pile. Then I go to "Arrange" also on the toolbar and click "by date". That generally puts the documents in the correct order. You can then drag and drop documents upon each other making separate multi-paged documents, each containing on patient's papers. Name it and import to AC.
Leslie