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Gastroenterology, Hepatology, and Nutrition 

Dr. Khalaf's interview thumbnail

Dr. Khalaf explains how our team is uniquely qualified to treat patients with Crohn's and ulcerative colitis.

About Us

The Pediatric Gastroenterology, Hepatology, and Nutrition team is committed to delivering a full range of highest quality, compassionate, up-to-date, state-of-the-art, multidisciplinary, and personalized care for pediatric patients with gastrointestinal disorders. Our patients include infants, college students, and everyone in between.

From initial testing and diagnosis through long-term disease management, our specialty-trained team includes physicians, nurses, psychologists, social workers, and dieticians who partner with families to provide patient-tailored and well-rounded care.

Aside from direct patient care, our medical practitioners also provide consultations to community physicians on basic to complex gastrointestinal and nutritional problems, including common gastrointestinal, nutritional, and hepatic problems of childhood, such as abdominal pain, chronic diarrhea, vomiting, and constipation.  

As the only academic medical center on the west coast of Florida, we are able to provide cutting-edge treatment, technology, and research.

What We Treat

  • Abdominal Pain
  • Celiac Disease
  • Constipation
  • Cow's Milk Protein Intolerance
  • Crohn's Disease
  • Diarrhea 
  • Encopresis
  • Eosinophilic Esophagitis
  • Eosinophilic Gastritis
  • Failure to Thrive
  • Functional Abdominal Pain
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding


  • G-tube dependence
  • Hepatitis
  • Inflammatory Bowel Disease
  • Irritable Bowel Syndrome
  • J-tube dependence
  • Lactose Intolerance 
  • Malnutrition
  • Nausea and Vomiting
  • Pancreatitis
  • Pediatric Feeding Disorders
  • Short Bowel Syndrome
  • Toddler's Diarrhea
  • Ulcerative Colitis

Procedures We Perform

  • Anal sphincter
  • Botox Anorectal manometry
  • Antral Botox
  • Balloon dilation of esophageal
  • Biofeedback
  • Breath testing
  • BRAVO pH monitoring
  • Capsule Endoscopy
  • Cholangioscopy
  • Colonoscopy
  • Cystgastrostomy / Pancreatic necrosectomy
  • Deep enteroscopy
  • Dysport injections
  • EndoFLIP


  • Endoluminal stenting
  • Endoluminal suturing
  • Endoscopic mucosal resection (EMR)
  • Endoscopic retrograde cholangiopancreatography (ERCP)
  • Endoscopic ultrasound (EUS) with fine needle aspiration (FNA)
  • Esophagastroduodenoscopy (EGD)
  • Esophageal dilations
  • Esophageal impedance-pH study
  • Esophageal string test for eosinophilic esophagitis
  • Pyloric dilation
  • Pyloric Botox
  • Pelvic floor rehab therapy
  • Rectal biopsy suction
  • Upper GI series

Inflammatory Bowel Disease (IBD) Program 

Our experts led the establishment of a pediatric multidisciplinary IBD clinic that is fully focused on offering up-to-date and state-of-the-art care to children and teens with Crohn's disease and ulcerative colitis. As part of this region's leading academic medical center, our experts provide innovative treatments that are evidence-based, utilize cutting edge technology that are minimally invasive, and actively participate in clinical research pertaining to IBD.

Celiac Disease Program

The Celiac Disease program at USF Health brings together a multidisciplinary team of experts to diagnose and treat Celiac Disease. Our approach ensures that each child or adolescent we treat has an established relationship with a gastroenterologist and dietitian to develop a personalized treatment plan. Our dietitians offer comprehensive nutrition support including nutrition counseling and group classes educating on the gluten-free diet and lifestyle changes for patients and families with Celiac Disease.

Now Offering Celiac Disease Class 

Celiac Class Flyer

Our USF Pediatric GI Dietitians lead a comprehensive class on the gluten-free diet for celiac disease.

Learn to identify gluten-free foods, avoid cross-contact, navigate dinning out while gluten-free and more!

Visit our Celiac Disease Class Gluten Free Diet page to learn more about the class and how to enroll. 

Eosinophilic Gastrointestinal Diseases Program

As leaders in the field, our team of experts are committed to providing patients with the latest innovative treatments and procedures available. We are proud to offer the esophageal string test (EST) as a new testing method for patients diagnosed with eosinophilic esophagitis (EoE). The esophageal string test is a clinically proven method to collect mucosal samples from the upper GI tract to monitor disease activity and treatment progress. It is an outpatient, minimally invasive and quicker alternative to the traditional method of testing for eosinophils through endoscopies and biopsies. 

Meet Our Dietitians 

  • Nicole Misner, MS, RDN

    Outpatient Dietitian

  • Michelle Yavelow, MS, RDN, LDN, CNSC, CSP

    Outpatient Dietitian

  • Kadie Swaney, MS, RDN, CNSC

    Inpatient GI Dietitian Tampa General Hospital

  • Julia Dam, MSN, APRN, CPNP

    GI Pediatric Patient Navigator

Schedule an Appointment / Get a Second Opinion

USF Health and Tampa General Hospital are combining expertise and resources to bring you the best care available in the region. 

We offer in-person consultations as well as Telehealth appointments. To book an appointment call (813) 821-8029 or visit our Telehealth page to learn how to book a virtual appointment. 

Do you have an account with MyChart? Simply login to request or manage your next appointment. You can also create your own account by visiting our MyChart page.

Our affiliation with Tampa General Hospital gives our patients access to their health records from both organizations through one MyChart Account. If you currently own a MyChart account with Tampa General Hospital, you do not need a separate account at USF Health.

Referring providers please call (813) 821-8057.

USF Health Making Life Better 

Dr. Racha Khalaf advances EoE monitoring at USF Health with new string test

The Esophageal String Test is a brand-new option, and USF Health is one of only three sites in the country offering it. During the test, the patient swallows a small pill containing a flexible string. The end of the string is taped to the cheek and the string remains in place for one hour and collects esophageal secretions that are then examined for the presence of inflammation caused by eosinophils.

Click here to view article with video.  

Grateful Patient Story

Patricia Weiler (right) and her sister Annabelle with their dog Mitch.

Patricia Weiler is an 8-year-old Crohn’s Disease patient. When she fell down the stairs, several doctors noticed wounds that weren’t healing in her mouth. She eventually found herself in the office of USF Health pediatric gastroenterologist, Dr. Racha Khalaf, who has helped answered the many questions she had about her condition.

Read the full story here.

Watch & Listen here.