Spokesman John Hall says 53-year-old Paul Robert Simon was arrested Tuesday morning at his apartment and faces five felony charges, including three counts of sexual battery on a medically incapacitated person.
An investigation into Simon was started in late 2010 after a report of possible criminal activity.
Investigators say in April 2009 a 58-year-old woman awoke after being on life-support to find she had difficulty moving her body but was mentally alert. Simon allegedly used her hand to masturbate himself.
In August 2010, a nurse reported seeing Simon touch a 57-year-old woman inappropriately.
If convicted, Simon faces up to six years in prison. He's due for arraignment Thursday.