Meet Our Team

The Young Spine Program at the Mount Sinai Health System offers our young patients the highest quality compassionate spine treatment within a comfortable and child-welcoming environment.

Abigail Allen, MD
Dr. Allen is the Chief of Pediatric Orthopedic Surgery, the Director of the Pediatric Orthopedic Clinic, and an Assistant Professor at Mount Sinai in the Leni and Peter W. May Department of Orthopedics. Dr. Allen is a graduate of the Pennsylvania State College of Medicine and completed her orthopedic surgery residency at Emory University. During her residency, she was selected for one of the most prestigious pediatric orthopedic fellowships in the country at Rady Children's Hospital affiliated with University of California San Diego.

Samuel K. Cho, MD
Dr. Cho is Chief of Spine Surgery at Mount Sinai West, Director of Spinal Surgery Fellowship, and Professor of Orthpaedic Surgery and Neurosurgery at the Icahn School of Medicine at Mount Sinai. Upon graduating from Washington University School of Medicine in St. Louis, he completed his residency in orthopaedic surgery at the New York Orthopaedic Hospital/Columbia University Medical Center, followed by spinal surgery fellowship at the world-renowned Barnes-Jewish Hospital/Washington University Medical Center.

Baron Lonner, MD
Dr. Lonner is a Professor of Orthopedic Surgery at Mount Sinai Hospital. Dr. Lonner’s central clinical interest is caring for patients with scoliosis and other spinal deformities using both operative and nonoperative treatments. His approach to you and your family is a holistic one in which your quality of life, values, and perspective is at the forefront of all decision-making about your treatment options.

Sheena Ranade, MD
Dr. Ranade is an Assistant Professor of Pediatric Orthopaedic Surgery in the Leni and Peter W. May Department of Orthopaedic Surgery.  Dr. Ranade received her undergraduate and master’s degrees in Mechanical Engineering from Stanford University and is a graduate of New York Medical College.  She completed her Orthopaedic Surgery residency at The Mount Sinai Hospital.