Rittenhouse to Host Presentation on Dementia By: Rittenhouse Villages Last Updated: May 6, 2013 Share on Facebook facebook Share on Twitter/X twitter/x Share on LinkedIn linkedin Email this page email Print this page print Dr. Mark Simaga, M.D., Neurologist, Medical Director of the Stroke Center will be giving a presentation on Dementia. Tuesday, May 7th, 6:00 pm Rittenhouse Senior Living of Portage Refreshments will be provided. Please RSVP to 219.764.2900.