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Gastroenterology, Hepatology & Nutrition

Expert, comprehensive care for children with digestive, liver and nutritional disorders, offering multidisciplinary treatment, clinical trials and specialized resources to ensure the best outcomes for every patient.

About Us

The Gastroenterology, Hepatology & Nutrition team at Children’s Nebraska specializes in the diagnosis and management of a broad spectrum of liver and gastrointestinal conditions in pediatric patients, from birth through age 19. Our team is skilled in handling complex issues such as abdominal pain, constipation, food allergies and liver diseases.

We take a collaborative, multidisciplinary approach to patient care. For instance, children with food allergies or sensitivities benefit from coordinated care alongside our Allergy, Asthma and Immunology team. Our pediatric gastroenterologists and hepatologists work closely to develop personalized treatment plans that deliver the best possible outcomes.

To improve access to care, we offer services not only at our main campus in Omaha but also at locations in Lincoln, Nebraska and Sioux City, Iowa, providing families with convenient access to specialized pediatric care.

Refer a Patient

Fax Referral Form

Fax completed forms to 402.955.6445.
Allow 48 hours for referrals to process.

Download Referral Form

Refer Patients Online

Referrals can be sent through our online portal, EpicCare Link. First-time users must click "Request New Account" to enroll.

Refer a Patient Online

Contact Us

Gastroenterology, Hepatology & Nutrition

Fax:

402.955.5720

Refer a Patient

Fax:

402.955.6445

Additional Information:

Download Referral Form

Please note: the referral processing period may take 48 hours. If your patient needs to be seen within 24 hours, please call the clinic directly.

Conditions We Treat

Our pediatric gastroenterology and hepatology specialists and other team members diagnose and treat many digestive health issues, including:

Meet Our Providers

At Children's, our renowned pediatric gastroenterology and pediatric hepatology experts offer advanced, comprehensive treatment for your child's digestive and liver conditions.

Alvaro G. Flores Lopez

Alvaro G. Flores Lopez, MD

Languages: Spanish, English

Specialty: Weight & Wellness

Morgan B. Dreesen

Morgan B. Dreesen, DO

Language: English

Specialties: Gastroenterology, Gastroenterology Nutrition

Emily G. Dietle

Emily G. Dietle, MD

Language: English

Specialties: Gastroenterology, Transplant Hepatology, Gastroenterology Nutrition

Scheherzade Aslam

Scheherzade Aslam, MBBS

Languages: Hindi, Punjabi, Urdu, English

Specialty: Gastroenterology

Ruben E. Quiros

Ruben E. Quiros, MD

Languages: Spanish, English

Specialties: Obesity and Weight Management Nutrition, Transplant Hepatology, Gastroenterology

David J. Freestone

David J. Freestone, DO

Languages: Spanish, Italian, English

Specialty: Gastroenterology

Treatments and Services

Our pediatric gastroenterologists and hepatologists practice in Omaha, Nebraska; Lincoln, Nebraska; and Sioux City, Iowa.

Locations

Children’s Nebraska Specialty Pediatric Clinic – Sioux City

5500 Sergeant Road Suite 100, Sioux City, IA 51106

Children’s Nebraska – West Omaha

20502 Roosevelt Street, Elkhorn, NE 68022

What Sets Us Apart

At Children’s, our pediatric gastroenterologists understand the unique anatomy and physiology of a child's digestive system as well as the various conditions that can affect them at different stages of development. Our pediatric hepatologists specialize in diagnosing, treating and managing a range of liver diseases, providing custom care and support for young patients.

Children’s offers the state’s only hospital-based specialty clinics for digestive and eating disorders. Our team delivers comprehensive care supported by experienced providers dedicated to addressing every aspect of your patient’s condition, ensuring a holistic approach.

Our pediatric gastroenterologists are also actively involved in clinical trials, offering the latest and most promising treatments for conditions such as liver disease, motility disorders and intestinal failure.

Awards and Honors

Children’s Nebraska was among the first in the nation to offer advanced procedures such as endoscopic microscopy and endoscopic ultrasound in a pediatric setting.

We continually seek innovative treatments for children with digestive tract, liver and nutrition disorders. For example, we are involved in ImproveCareNow, which is dedicated to restoring the wellbeing of children with Crohn’s disease and ulcerative colitis. By exchanging evidence-based practices with other providers across the globe, our team can offer the most effective care for children with inflammatory bowel disease.