On the record with Advocate Health Care President Dia Nichols Mar 15, 2024 | Health Systems, On The Record, Top Stories Roughly six months after taking over as president of the Illinois division of Advocate Health, Dia Nichols said he's still taking it all in.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.