RoyNattivMD is a pediatric gastroenterology practice in Torrance, California, led by Roy Nattiv, MD, a board-certified pediatrician and pediatric gastroenterologist with subspecialty training in gastroenterology, hepatology, and nutrition. The clinic provides care for infants, children, and young adults with digestive and nutrition-related concerns, from abdominal pain and constipation to complex gastrointestinal conditions.

Conditions treated include diarrhea, reflux, food allergies and eosinophilic disorders, poor weight gain, small intestinal bacterial overgrowth (SIBO), celiac disease and gluten intolerance, inflammatory bowel disease, irritable bowel syndrome, and obesity. The practice combines evidence-based diagnosis and treatment with nutrition and lifestyle guidance, integrative approaches, and appropriate prescription therapies. Services include scientific testing such as breath testing and microbiome mapping, as well as traditional endoscopy. Families can request in-office or telemedicine consultations and choose insurance-based or concierge appointments. The clinic emphasizes personalized care, extended appointment times, and direct communication, while helping parents understand treatment options and support their child’s digestive health and overall well-being.