Christina Frater, M.S.

Dr. Kenny Castro is an Assistant Professor of Clinical Pediatrics at Weill Cornell Medicine and an Assistant Attending Pediatrician at New York-Presbyterian/Brooklyn Methodist Hospital. She is board certified in Pediatrics. Dr. Castro obtained her medical degree (M.D.) from the Central University of Venezuela. After receiving her M.D., she worked as a community doctor in her home country, Venezuela, providing medical care to low-income and minority populations. Seeking further expertise, she immigrated to the United States and pursued her medical training at Lincoln Medical Center, completing a three-year residency in pediatrics. Following that, she accomplished a three-year fellowship in pediatric gastroenterology at SUNY Downstate Health Sciences University, where she was also inducted as a member of the Alpha Omega Alpha Honor Medical Society. During her fellowship training, Dr. Castro actively engaged in various research projects, focusing on clinical research and quality improvement. She contributed to studies exploring the public health impact of the COVID-19 pandemic on Inflammatory Bowel Disease presentation in pediatric patients in the New York City area and enhancing patient experience during colonoscopy procedures. Dr. Castro is fluent in English and Spanish, and her clinical interests include abdominal pain, constipation, inflammatory bowel disease, gastroesophageal reflux, eosinophilic esophagitis, eosinophilic gastrointestinal disease, celiac disease, poor weight gain, obesity, nausea, and vomiting.

Rock Positano is an orthopaedic surgeon at MSK specializing in musculoskeletal podiatry including the nonsurgical diagnosis and treatment of disorders of the foot and ankle.

Dr. Marc Brown is the medical director of ColumbiaDoctors/NewYork-Presbyterian Imaging in midtown Manhattan and associate professor of radiology at Columbia University Irving Medical Center (CUIMC). He also serves as vice chair of outpatient imaging in the Department of Radiology, as well as associate attending radiologist at NewYork-Presbyterian Hospital. Dr. Brown earned his medical degree at the College of Physicians and Surgeons of Columbia University and completed his internship, residency, and fellowship specializing in ultrasound/breast imaging at Columbia-Presbyterian Medical Center. He is certified by the American Board of Radiology and a member of the American Roentgen Ray Society, New York State Radiological Society, Radiological Society of North America, and the Society of Practitioners.