Our Team

Chief of Service

Dr. Shneider's leadership goal is to leverage the wide-ranging clinical and research expertise of an exceptionally talented section to provide compassionate, state-of-the-art, discipline-leading and evidence-based care for children with all types of gastrointestinal, hepatic, pancreatic and... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131

Clinic Physicians and Surgeons

I believe that providing exceptional care to children is a great privilege. Children should feel involved in their care and as such leaving a lasting positive impression on the children I care for is of utmost importance.  As a strong advocate of the mind- body connection, I believe that... Read more

Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-227-1440 (West) | 832-828-1800 (Sugar Land)
The gastrointestinal tract is an essential part of what makes us human; the ability to share a meal with family and friends, to grow to our full potential and to excrete waste products from the body, is very dependent on a functioning GI tract. I am excited at the opportunity to help children with... Read more

Address: Texas Children's Hospital - The Woodlands 17580 I-45 South, 5th Floor, Orange Pod The Woodlands, TX 77384 United States See map: Google Maps Texas
Phone: 936-267-7555
Dr. Chiou is a pediatric gastroenterologist with a clinical focus on Neurogastroenterology and Functional GI Disorders. The current focus of Dr. Chiou’s research is on disorders of esophageal motility in children, including conditions such as gastroesophageal reflux disease (GERD).  Despite the... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
I believe that mutual trust and effective communication are two of the bedrock components of a good patient-provider relationship. I also believe that building strong collaborations with care providers within Texas Children’s Hospital and beyond is critical to fully leveraging the resources of our... Read more

Address: Texas Children's Hospital - The Woodlands 17580 Interstate-45 South, 5th Floor, Orange Pod The Woodlands, TX 77384 United States See map: Google Maps Texas
Phone: 936-267-7555
During my training in pediatrics and pediatric gastroenterology it became apparent that the areas of childhood functional gastrointestinal disorders and childhood motility disorders were both clinically and scientifically underserved.  I was struck by how common these disorders (such as chronic... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Fishman is the Director of GI Endoscopy and Therapeutic Endoscopy and is active in the study of pancreaticobiliary disease in children. He is the medical director of the Pancreaticobilary Program (PBP). Current studies include evaluation of... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131


Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-228-1800 (Sugar Land)
I am a pediatric gastroenterologist with special interests in neonatal cholestasis (abnormal jaundice in newborns and infants), genetic causes of liver disease such as progressive familial intrahepatic cholestasis and Wilson disease, liver transplantation, and non-alcoholic fatty liver disease.... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Hertel's clinical and research expertise focus on pediatric liver disease.  In her clinic, she cares for infants and children of all ages with liver transplants and with liver diseases including biliary atresia, idiopathic neonatal hepatitis, progressive familial intrahepatic cholestasis (PFIC... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. John Hollier is a Pediatric Gastroenterologist with broad clinical interests including failure to thrive, constipation, celiac disease, and functional abdominal pain.   Dr. Hollier’s research focuses on innovative delivery methods to treat pediatric patients with functional abdominal pain... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Himes' clinical and research activities converge on defining, measuring and improving value-delivery in healthcare. He leads efforts in the section of gastroenterology and within the visceral transplant program to make Texas Children's Hospital a national leader in outcomes transparency and... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Clinical  Interests:  Dr. Ihekweazu’s clinical interests include general pediatric gastroenterology, with a primary focus on Inflammatory Bowel Diseases. Research Interests:  Dr. Ihekweazu’s research focuses on the relationship between the gut microbiome and Inflammatory bowel diseases (IBD),... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Jensen strives to provide compassionate, up-to-date care care to children with gastrointestinal and nutritional problems.   Clinical  Interests: Dr. Jensen sees patients with a wide array of gastrointestinal, liver and nutritional problems.  He is especially interested in caring for children... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Lina B. Karam M.D is a Pediatric Gastroenterologist with clinical expertise in treatment of patients with a variety of gastrointestinal disorders and a special interest in patients with inflammatory bowel disease. She is the medical director of the capsule endoscopy program which is a state of the... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Kellermayer is the director of the Pediatric Inflammatory Bowel Disease (IBD) Program at Texas Children's Hospital (TCH), Baylor College of Medicine (BCM). He is a devoted pediatric gastroenterologist striving for outstanding patient care with special interest in IBD (including Crohn's disease... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (West)
I care for children with all kinds of GI disorders and I perform GI procedures regularly.  I am especially interested in Nutrition, G-tube feeding , milk intolerance, inflammatory bowel diseases, functional GI disorder and management of GI disorders in children with developmental delay.  I have... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-828-1800 (Sugar Land)
Dr. Leung is director of the Viral Hepatitis Program at Texas Children's Hospital and also serves as Director of Clinical Research within Gastroenterology, Hepatology, and Nutrition. His research interests are focused on the epidemiology and treatment of children affected by hepatitis B and C. The... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Tamir Miloh, M.D. is the Director of Pediatric Hepatology and Liver Transplant Medicine at Texas Children’s Hospital. He is actively involved in clinical investigation of various pediatric liver diseases such as liver transplantation, primary sclerosing cholangitis (PSC), autoimmune hepatitis,... Read more

Address: 6701 Fannin Street Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Motil investigates nutrient metabolism in girls and women with Rett syndrome, a neurodevelopmental disorder caused by a mutation in the MECP2 gene. The broad goal of her research is to understand how nutritional interventions modify growth and body composition outcomes in these individuals. Of... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Mysore’s clinical and research interests are in pediatric liver diseases and transplantation. She actively collaborates with divisions of Immunology and Infectious disease at Texas Children’s Hospital to study Immune mechanisms in liver transplantation. Her laboratory research is in T cell... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
As a pediatric gastroenterologist, I strive to not only provide great patient care but to also develop a relationship built on trust with my patients and their families. In order to treat a patient’s disease, I believe that it is necessary to address every aspect, from physical to psychological. I... Read more

Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas
Phone: 832-227-1440
My primary role at Texas Children's Hospital is that of a clinician. I see patients in both the outpatient and inpatient setting, taking care of a variety of gastrointestinal conditions. These range from patients with common problems such as chronic abdominal pain, gastroesophageal reflux, chronic... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Pham cares for children with a range of gastroenterology and hepatology diseases in both the inpatient and outpatient settings at the Texas Children’s Hospital Medical Center and West Campus. She is a transplant hepatologist who is active within our Viral Hepatitis and Liver Transplant... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas
Phone: 832-822-3250 (Main) | 832-227-1440 (West)
Dr. Preidis’s goal is to provide the highest quality of compassionate patient care by leveraging the latest advances in gastroenterological, liver, nutritional, and microbiome research.  Clinical Interests: Geoffrey A. Preidis, M.D., Ph.D. is a Pediatric Gastroenterologist with basic research... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Queliza cares for a wide spectrum of conditions within pediatric gastroenterology, and strives to maintain a highly compassionate and evidence-based practice.  Her specific clinical and research interests include pancreatobiliary disorders (such as recurrent and chronic pancreatitis, biliary... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
My patient care philosophy focuses on a personalized “patient-and family-centered” approach. My goal is not just to provide medical management but to also empower my patients and their parents with the education required to incorporate themselves in the decision making and healing process. As a... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (West)
Dr Redel enjoys caring for infants and children with a variety of gastrointestinal conditions. Her areas of emphasis are feeding difficulties in young children, gastrointestinal problems in children with autism spectrum disorders, and poor weight gain in preschoolers.  Together with a dietitian,... Read more

Address: Texas Children's Hospital - Main Campus Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Clear Lake 940 Clear Lake City Blvd. Houston, TX 77598 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-282-9100 (Clear Lake)
The excitement I get from being a physician is that I have the opportunity to do the three things I love the most in my professional life. There is the opportunity to take care of kids and help them get better to the best of my ability. Through carrying out research there is the possibility of... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Clinical Interests: General Pediatric Gastroenterology Liver Disease   Research Interests: Dr. Tessier has an interest in enterohepatic circulation and the impact of the gut microbiome on hepatic health and vise-versa. She hopes to expand our knowledge of the gut microbiome and metabolome in... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Van Buren is an Assistant Professor of Pediatrics in the Division of Gastroenterology, Hepatology and Nutrition.  She cares for children with a variety of gastrointestinal conditions. Dr. Van Buren also specializes in caring for patients with short bowel syndrome and intestinal failure in the... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Bryan Vartabedian is the Director of Community Medicine for the division of gastroenterology, hepatology and nutrition. He has spent 20 years in full-time clinical practice and currently sees patients at Texas Children's Hospital | The Woodlands. Passionate about communication and patient... Read more

Address: Texas Children's Hospital - The Woodlands 17580 I-45 South, 5th Floor, Orange Pod The Woodlands, TX 77384 United States See map: Google Maps Texas
Phone: 936-267-7555
I am honored to have the opportunity to serve children and help them to get better. I believe a good relationship with patients and their families is crucial in order to provide the highest quality of care for these children. I treat patients and their families with compassion, dignity and respect... Read more

Address: 6701 Fannin Street Suite 1100 United States See map: Google Maps
Phone: 832-822-3131
Dr. Walsh is a dedicated pediatric gastroenterologist with a clinical interest in inflammatory bowel disease, Crohn’s disease and ulcerative colitis.  She cares for children with a wide array of gastrointestinal difficulties.  Her focus is providing the highest quality of care through compassion,... Read more

Address: 6701 Fannin Street Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3131
Dr. Wyatt enjoys seeing children with a wide spectrum of GI illnesses including gastroesophageal reflux, constipation and functional disorders such as irritable bowel syndrome.  She enjoys forming trusting relationships with patients and their families and appreciates that every child is different... Read more

Address: Texas Children's Hospital - The Woodlands 17580 I-45 South, 5th Floor, Orange Pod The Woodlands, TX 77384 United States See map: Google Maps Texas
Phone: 936-267-7555

Nurse Practitioners

My clinical interests include biliary atresia, liver transplant and nonalcoholic fatty liver disease (NAFLD).  I am also a co-investigator in numerous research trials in the areas of biliary atresia, cholestatic liver disease, NAFLD/NASH and liver transplant.  

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Hospital - West Campus 18200 Katy Freeway, Suite 250 Houston, TX 77094 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (West) | 832-828-1800 (Sugar Land)
Caroyl Gilbert obtained her Associate Degree in Nursing from Houston Baptist University, Houston, Texas.  She went on to obtain her BSN and MSN from the University of Texas Health Science Center at Houston, School of Nursing.  She has been a Pediatric Nurse Practitioner in the Gastroenterology,... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (Sugar Land)
Ms. Maupin sees patients with general gastrointestinal and nutritional problems, including obesity. She is especially interested in caring for children with developmental disabilities with associated gastrointestinal concerns such as functional constipation, abdominal pain, GERD and feeding... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Hospital - West Campus 18200 Katy Freeway Houston, TX 77094 United States See map: Google Maps Texas , Address: Texas Children's Health Center - CyFair 11777 FM 1960 West Houston, TX 77065 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (West) | 281-469-4688 (Cy-Fair)
Nicole Triggs, MSN, APRN, CPNP-PC, CPN is a Pediatric Nurse Practitioner in the Department of Pediatrics, Section of Gastroenterology, Hepatology and Nutrition at Texas Children’s Hospital.  She cares for children with liver diseases in the outpatient setting at the Texas Children's Hospital... Read more

Address: Texas Children's Hospital - Main Campus 6701 Fannin Street, Suite 1100 Houston, TX 77030 United States See map: Google Maps Texas , Address: Texas Children's Health Center - Sugar Land 15400 Southwest Freeway, Suite 200 Sugar Land, TX 77478 United States See map: Google Maps Texas
Phone: 832-822-3131 (Main) | 832-227-1440 (Sugar Land)

Practice Administrator

Daniel Gonzalez, PhD



Clinic Dietitians

Stacy Beer, MPH, RD, LD



April Chu, RD, LD



Kelsey Clinch, RD



Kristi King, MPH, RD, LD



Paula Mrowczynski-Hernandez, MPH, RD, LD



Lesly Rivera, RD, LD



Nikki Smith, RD, LD



Clinic Nurses

Debbie Biehl, RN



Sharon Demel, RN



Laura Johnson, RN



Euphemia Rogers, RN



Tiffany Shorts, LVN



Jocelyn Wiltz, RN



Erika Yarrito, LVN



Manager of Nutrition Support

Sarah Phillips, RD, LD



Weigh of Life Program Director

Dr Mikhail’s clinical and research interests are in cognitive-behavioral treatment of pediatric obesity. She runs the A Weigh of Life program at Texas Children’s Hospital, a lifestyle change program for effective weight loss in children and their families. The program has been researched in a... Read more

Address: 6621 Fannin MC CC 1720.14 Houston, TX 77030 United States See map: Google Maps Texas
Phone: 832-822-3065