If the doctor involved is actually signing these, he should be brought before the medical licensing board. I would imagine that criminal prosecution is possible, too. And if his name is being forged, then somebody else is a criminal.
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3) Mail completed document(s) to:
State of Wisconsin
Department of Regulation and Licensing
Division of Enforcement
PO Box 8935
Madison, WI 53708-8935
Hat tip: Charles B.