Dr. Margaret 'Maggie' Cupit-Link is a pediatric hematologist/oncologist who treats patients from birth to 23 years old. She diagnoses, treats, and provides supportive care for patients with pediatric cancers; pediatric solid tumors; sarcomas; and neuroblastoma.

Dr. Cupit-Link studies acute and chronic toxicities from pediatric cancer therapies; late effects of pediatric cancer immunotherapy; late effects of anti-GD2 antibody; onco-fertility; and quality of life in pediatric cancer patients and survivors. Her clinical research aims to understand and reduce acute and long-term toxicities from pediatric cancer therapies.

A cancer survivor herself, Dr. Cupit-Link deeply cares for her patients, employing empathy and compassion to support them and lessen their suffering.

Dr. Cupit-Link is an assistant professor with the Division of Pediatrics - Hematology/Oncology in the Department of Pediatrics at Saint Louis University School of Medicine. She is a member of the American Society of Pediatric Hematology/Oncology; Children's Oncology Group; and American Society of Clinical Oncology.