Gastroenterologists, Hepatologists & Nutritionists

The following physicians and advanced practice nurses specialize in treating children with disorders that affect digestion and nutrition. Please note that not all of our specialists are available at every location. Select their names to learn more about their special interest areas and locations.

Barry K. Wershil, MD

Division Head, Gastroenterology, Hepatology and Nutrition

Estella M. Alonso, MD

Medical Director, The Siragusa Transplantation Center; Sally Burnett Searle Professorship in Pediatric Transplantation

Valeria C. Cohran, MD

Medical Director, Intestinal Rehabilitation and Transplantation; Attending Physician, Gastroenterology

Lee M. Bass, MD

Clinical Practice Director and Director of Endoscopy, Gastroenterology, Hepatology and Nutrition

Jeffrey B. Brown, MD

Medical Director, Inflammatory Bowel Disease Program

Catherine A. Chapin, MD

Medical Director, Hepatology & Liver Transplant; Attending Physician, Gastroenterology, Hepatology & Nutrition

Bonnie S. Essner, PhD

Pediatric Psychologist, The Pritzker Department of Psychiatry and Behavioral Health

Mark H. Fishbein, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition; Medical Director, Pediatric Feeding and Swallowing Disorder Program; Medical Director, Non-Alcoholic Steatohepatitis (Fatty Liver Disease) Program

John E. Fortunato, Jr, MD

Director, Neurointestinal & Motility Program; Attending Physician, Gastroenterology, Hepatology and Nutrition

Amanda Gomez, MD, MPH

Attending Physician, Gastroenterology, Hepatology and Nutrition

Alex D. Green, DO

Attending Physician, Gastroenterology, Hepatology and Nutrition

Maria T. Greene, MD

Attending Physician, Gastroenterology

Natalie Hoffmann, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Batul Kaj-Carbaidwala, MD

Attending Physician, Gastroenterology, Hepatology & Nutrition

Corie M. Klepper, MD, MS

Attending Physician, Gastroenterology, Hepatology and Nutrition

Alyssa A. Kriegermeier, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Mora V. Mocanu, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Suzanne P. Nelson, MD, MPH

Attending Physician, Gastroenterology, Hepatology & Nutrition

Peter T. Osgood, MD

Attending Physician, Gastroenterology, Hepatology & Nutrition

Maria E. Perez, DO

Attending Physician, Gastroenterology, Hepatology & Nutrition

Lauren Potthoff, PhD

Pediatric Psychologist, The Pritzker Department of Psychiatry and Behavioral Health

C. Allan Pratt, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Joshua D. Prozialeck, MD, MSA

Attending Physician, Gastroenterology, Hepatology and Nutrition

Joseph M. Runde, DO

Attending Physician, Gastroenterology, Hepatology & Nutrition

Adrienne Scheich, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Jennifer A. Strople, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Melissa Talley, RD, LDN, CNSC

Registered Dietitian, Gastroenterology, Hepatology and Nutrition

Sharon Tam, MD

Attending Physician, Gastroenterology, Hepatology and Nutrition

Joshua B. Wechsler, MD, MSCI

Medical Director, Eosinophilic Gastrointestinal Diseases Program; Attending Physician, Gastroenterology, Hepatology and Nutrition; CURED (Campaign Urging Research for Eosinophilic Disease) Foundation Research Scholar