She is a pediatric hospitalist at St. Louis Children's Hospital and faculty member at Washington University School of Medicine. She attended Saint Louis University School of Medicine and went on to train in pediatrics at the Children's Hospital of Pittsburgh. She joined the pediatric hospital medicine division at St. Louis Children's Hospital in July 2005. Dr. Hrach is the director of the SHARP (Service for Hospital Admissions by Referring Physicians) service at St. Louis Children's Hospital. She is also the physician leader of one of the general pediatric floor multidisciplinary teams for the hospital. Her areas of clinical interest are inpatient medicine, newborn nursery, quality improvement, and resident and student education.