Eleni Lantzouni, MD, is an attending physician in the Craig-Dalsimer Division of Adolescent Medicine and the Medical Director of the Eating Disorder Program at Children's Hospital of Philadelphia.  In addition to her clinical work, Dr. Lantzouni is an Associate Professor of Clinical Pediatrics at the Perelman School of Medicine, University of Pennsylvania in Philadelphia. Dr. Lantzouni is board certified in pediatrics and adolescent medicine. She is specialized in treatment of common issues in teens and young adults such as menstrual disorders, contraception and mood disorders. Her main focus and expertise is in treatment, prevention and early intervention of eating disorders.

Dr. Lantzouni said she especially enjoys working with teenagers because "…teens are full of enthusiasm and have great growth potentials."  It’s no secret the teenage years can be difficult, which makes it even more important for adolescent patients to feel their doctors understand them and genuinely care about them.  "I want every family to feel that they are not alone," says Dr. Lantzouni. "Doctors care, listen and guide. We want every child to have optimum health and a bright future."

Education and experience

Dr. Lantzouni earned her medical degree from Kapodistrian University in Athens, Greece and continued her training with residencies in microbiology at Aghia Sophia Children's Hospital in Athens. She came to the USA and did an internship in pediatrics at Hahnemann University in Philadelphia. She then completed the pediatric residency and adolescent medicine fellowship at Schneider's Children's Hospital, New Hyde Park, New York. She also spent a year specializing in gynecology at Columbus Children's Hospital, Columbus, Ohio.  She also completed fellowships in academic medicine at Northeast Ohio Medical University, Rootstown, Ohio.

Education and Training

Medical School

MD - Kapodistrian University, Athens, Greece


Pediatrics - Hahnemann University, Philadelphia, PA


Pediatrics - Schneider Children's Hospital, New York, NY
Microbiology - Aghia Sophia Children's Hospital, Athens, Greece


Academic Medicine - Northeast Ohio Medical University, Rootstown, OH
Adolescent Gynecology - Columbus Children's Hospital, Columbus, OH
Adolescent Medicine - Schneider's Children's Hospital, New Hyde Park, NY

Board Certification

Adolescent Medicine – American Board of Pediatrics
Pediatrics – American Board of Pediatrics

Titles and Academic Titles

Attending Physician

Associate Professor of Clinical Pediatrics, Perelman School of Medicine at the University of Pennsylvania

Departments and Services




Peebles R, Lesser A, Park CC, Heckert K, Timko CA, Lantzouni E, Liebman R, Weaver L.: Outcomes of an inpatient medical nutritional rehabilitation protocol in children and adolescents with eating disorders. J Eat Disord. 1(5): 7, March 2017.


Lantzouni Eleni, Cox Molly Havnen, Salvator Ann, Crosby Ross D: Mother-daughter coping and disordered eating. European eating disorders review : the journal of the Eating Disorders Association 23(2): 126-32, March 2015.


Lantzouni E, Golden N. Frank G. Shenker IR: Reversibility of growth stunting in early onset anorexia Nervosa: a prospective study. J Adolesc Health 31(8): 161-165, August 2002.

Posters and Presentations


Chuang J, Lantzouni E: Reducing Length of stay for children and adolescents admitted for malnutrition A KKOOTH project. Children's Hospital of Philadelphia Safety Day, Philadelphia, PA May 2019 Notes: Podium.


S Ehrman, C Park, L Weaver, A Timko, E Lantzouni, K Heckert, R Peebles: Hyperphosphatemia in children and adolescents with eating disorders. Pediatric Academic Societies Annual Meeting, Toronto, Canada May 2018 Notes: Poster.

K Kiesow, N Shahid, C Park, E Lantzouni, L Weaver, R Peebles: Pancreatic Enzyme elevation in adolescents with eating disorders. Pediatric Academic Societies Annual Meeting, Toronto, Canada  May 2018 Notes: Poster.


J Chuang MD, C Wong MD, R Peebles MD, Chinonyerem Madu MPH, E Lantzouni MD: Reducing electrolyte monitoring for refeeding syndrome in adolescents with disordered eating. American Academy of Pediatrics National Conference and Exhibition, San Francisco, CA October 2016 Notes: Poster.

Awards and Honors

2022, Main Line Today Top Docs, Adolescent Medicine