A native Pennsylvanian, Dr. Leinbach graduated from Lafayette College with degrees in biology and philosophy. She spent two years as a research specialist at the University of Pennsylvania School of Medicine, after which she continued on at the University of Pennsylvania graduating with a DMD and Certificate of Public Health Studies. She relocated to Baltimore to complete a General Practice Residency at the Johns Hopkins School of Medicine. She then completed an MPH at the Johns Hopkins Bloomberg School of Public Health. Professional memberships include the American Academy of Oral Medicine and the Greater Washington Academy of Women Dentists.