She worked as an Assistant Professor of Family Medicine at UMass Medical School, where she also participated in a Quality Scholars Program, a leadership program for medical professionals. She is interested in perinatal issues and newborn, as demonstrated in her involvement in community medical centers and her time as the Director of Maternal and Newborn Inpatient Services at UMass Medical School. Dr. Kostecki is a member of the American Academy of Family Physicians, the Society of Teachers of Family Medicine, the American Society for Colposcopy and Cervical Pathology, and the National Women’s Health Network.