Mill Springs Academy Open House. Mill Springs Academy is an independent school catering to students (grades 1-12) with learning disabilities and/or Attention Deficit Disorder. We support high-functioning students with average to above average ability that are looking for a college prep environment. Come to our open house to find out more information. 13660 New Providence Road, Alpharetta. RSVP to 770-360-1336. www.millsprings.org .