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Faculty and Staff



  • Associate Professor of Surgery (Pediatrics); Director of Pediatric Trauma, Surgery; Surgical Director, Pediatric Thyroid Center, Surgery

    Emily Christison-Lagay, MD is a pediatric surgeon with broad clinical interests spanning the width pediatric surgery from congenital anomalies in newborns to common childhood surgical conditions (hernias, appendicitis, gallbladder disease) to childhood tumors, trauma, and benign and malignant thyroid disease. She is the surgical director of the Pediatric Thyroid Center at Yale and the Director of Pediatric Trauma. Following completion of her pediatric surgical training, Dr. Christison-Lagay pursued additional training in the medical and surgical management of pediatric solid tumors including thoracic, liver, and renal tumors, as well as neuroblastoma, childhood sarcomas, and pediatric diseases of the thyroid. She is board-certified in surgery and pediatric surgery, Dr. Christison-Lagay completed her medical degree at Harvard Medical School and her general surgical residency at the Massachusetts General Hospital, with research in tumor angiogenesis at Boston Children's Hospital. From there, she completed a pediatric surgical fellowship at the Hospital for Sick Children in Toronto, followed by a "super"-fellowship in pediatric surgical oncology at Memorial Sloan Kettering Cancer Center. She is a member of the Children's Oncology Group and the International Society of Paediatric Surgical Oncology as well the American Thyroid Association Taskforce on Pediatric Thyroid Disease and a founding member of the Child and Adolescent Thyroid Consortium.
  • Professor of Surgery (Pediatrics Division)

    Robert A. Cowles, MD is a Professor of Surgery at Yale School of Medicine. Dr. Cowles obtained his undergraduate education at the University of Pennsylvania and his medical degree at Temple University. He completed a residency in general surgery at the University of Michigan, in Ann Arbor, and spent two additional years pursuing laboratory research which was supported by a training grant from the NIH and by a research grant from the American College of Surgeons. Dr. Cowles then obtained his pediatric surgery training at the Morgan Stanley Children’s Hospital at Columbia University in New York City.Dr. Cowles practices the full range of pediatric surgery with specific expertise and interest in the care of children with diseases of the gastrointestinal tract including the esophagus, stomach, small intestine, colon, liver and biliary tree. He currently co-manages patients with short gut syndrome and intestinal failure as part of a multidisciplinary team.He has been a Program Director of Pediatric Surgery Fellowships both in New York and now at Yale University with an interest in competency in surgical education.Dr. Cowles directs a research laboratory focused on the neural control of intestinal adaptation and neural processes involved in recovery from intestinal injury.Meet Dr. Robert Cowles.
  • Assistant Professor of Surgery (Transplant); Assistant Professor of Surgery (Transplant)

    Danielle is excited to have joined the surgical faculty at the Yale New Haven Transplant Center and School of Medicine.  She is originally from Colorado and completed several years of research, her undergraduate education and her medical education at Colorado State University and University of Colorado.  She moved to Arizona for her surgical training completing both General Surgery Residency and an Abdominal Transplant Surgical Fellowship at Mayo Clinic Arizona.  Her research interests include the diabetic management of surgical and transplant patients, marginal organ utilization and surgical education.  Danielle loves teaching and mentorship of future physicians and healthcare providers.  In her free time she enjoys spending time with her family, music, reading, cooking, hiking and yoga.


  • Christine Carrion – Hepatology Nurse
  • Lindsay Arnott, RN – Transplant Coordinator
  • Christine Golden, RN – Transplant Coordinator

Multi-Disciplinary Subspecialists