Elizabeth Hait, MD, MPH

Elizabeth Hait, MD, MPH

Attending physician; Co-Medical Director, Eosinophilic Gastrointestinal Disease (EGID) Program

Assistant Professor of Pediatrics, Harvard Medical School

  • Contact: 617-355-6058

  • Fax: 617-730-0495

Medical Services


  • Allergic Gastrointestinal Disorders
  • Gastroenterology


  • Gastroenterology, Hepatology and Nutrition


  • English


  • Eosinophilic Gastrointestinal Disease Program
To schedule an appointment: Call 617-355-6058 or Request an Appointment
Elizabeth Hait, MD, MPH

Philosophy of Care 

I believe that parents know their children best. I know that really listening to the parents of my patients is the most effective tool that I have as a doctor to determine the root cause of their children's issue.

Experience and Education


Medical School

University of Toronto, 1999

Toronto, Canada


Rainbow Babies and Children's Hospital, Case Western Reserve University, 1999-2000

Cleveland , OH


Rainbow Babies and Children's Hospital, Case Western Reserve University, 2000-2002

Cleveland, OH


Boston Children's Hospital, Harvard Medical School, 2002-2006

Boston, MA


  • Pediatrics, Pediatric Gastroenterology

Professional History

Dr. Elizabeth Hait has been a staff gastroenterologist at Boston Children’s Hospital for over a decade. While she maintains a thriving general pediatric GI practice, Dr. Hait has a particular interest in the relationship between the immune system of the GI tract and the environment.

As a fellow, she studied the gut microbiota and inflammatory mechanisms of recurrent inflammatory bowel disease (IBD) post colectomy. Dr. Hait also studied with Dr. Russ Hauser, Professor of Occupational and Environmental Health at the Harvard School of Public Health, and brought her pediatric GI perspective to his work on endocrine disruptors. Phthalates are widely used chemicals that adversely affect male fertility in animal models. They are an inactive ingredient in Asacol®, a medication commonly used to treat children with IBD. Together, Dr. Hait and Dr. Russ designed a unique study to examine the effects of Asacol® on male reproductivity.  The clear impact of their work, and one of Dr. Hait’s proudest achievements, is that their study led to Warner Chilcott Pharmaceuticals replacing Asacol® with phthalate-free Delzicol®.

After fellowship, Dr. Hait was recruited to become a faculty member at Boston Children’s Hospital and helped build a multidisciplinary program to treat children with allergic gastrointestinal disorders. Boston Children’s Hospital’s Eosinophilic Gastrointestinal Disease (EGID) Program was the first program of its kind in the Northeast. Our team has published several articles on novel therapeutic approaches to treat allergic gastrointestinal disorders.

To schedule an appointment: Call 617-355-6058 or Request an Appointment


The future of pediatrics will be forged by thinking differently, breaking paradigms and joining together in a shared vision of tackling the toughest challenges before us.”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital 300 Longwood Avenue, Boston, MA 02115 617-355-6000 | 800-355-7944