She completed an internship in internal medicine at Columbia-Presbyterian Medical Center,[4] where she met her future husband, a Texan who trained at UT Southwestern.
[5] Together, Hobbs and her husband, Dr. Dennis Stone, moved to Dallas, Texas in 1980, where she completed her medical training at Parkland Memorial Hospital, including a one-year stint as chief resident.
Following the advice of Donald Seldin,[6] the chairman of medicine at UT Southwestern Medical Center, she chose to pursue research after residency.
Again, following Dr. Seldin's recommendation, Hobbs took a research post-doctoral position studying lipoproteins at UT Southwestern in the laboratory of Michael S. Brown and Joseph L. Goldstein, Nobel Prize in Medicine winners in 1985.
In 1987 Hobbs joined the faculty of UT Southwestern Medical Center where she is the Eugene McDermott Distinguished Chair for the Study of Human Growth and Development.