She comes to the faculty from the Community Health Improvement Center in Decatur, where she was a staff physician (1994-97).
Thomas earned her medical degree and completed her residency in family and community medicine at SIU (1991, 1994). She earned her undergraduate degree at the University of Illinois at Urbana (1987).
She is a member of the American Academy of Family Physicians. Her community activities include serving as the youth programming director at Mt. Zion Apostolic Church in Springfield.
Thomas and her husband, Darryl, are the parents of two daughters: Lauren, 4, and Christina, 2. She is the daughter of Betty Hayes of Chicago.