Dr. Cosmos grew up in Naperville, Illinois and graduated from Neuqua Valley High School. He completed his Bachelor of Science in biology and minor in chemistry at the University of Illinois at Urbana-Champaign, where he competed nationally for U of I’s ultimate frisbee team. He then attended Midwestern University to earn his Doctor of Dental Medicine with high distinction. After graduating, Dr. Cosmos continued his education by completing a one-year general practice residency in Chicago.