About Cassandra Kelleher, MD

Dr. Kelleher is a Pediatric General and Thoracic surgeon. Her clinical interests include lung disease and development, pediatric and adolescent gynecology, fetal care, adolescent bariatric surgery and pediatric cancer. She uses minimally invasivessurgical techniques when ever appropriate.

Clinical Interests:



Pediatric Surgery
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-724-1602
Fax: 617-726-2167

Medical Education

  • MD, Harvard Medical School
  • MD, Harvard University School of Public Health
  • Residency, Barnes-Jewish Hospital
  • Residency, Brigham and Women's Hospital
  • Fellowship, Barnes-Jewish Hospital
  • Fellowship, Hospital For Sick Children

American Board Certifications

  • Pediatric Surgery, American Board of Surgery
  • General Surgery, American Board of Surgery
  • General Surgery, American Board of Surgery

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


Dr. Kelleher's laboratory studies late lung development, called alveolarization, that is delayed or impaired in many newborn lung diseases. She has developed a novel method to study the process of aleolar development that can be used to investigate new therapies that may improve lung development or regeneration in newborns and adults.