Dr. DeWal is a Board Certified Orthopaedic Surgeon with advanced Fellowship training in neurosurgery of the spine. He is committed to the latest advancements in spine surgery, offering patients the newest, most up-to-date technologies. His clinical practice includes microsurgery, minimally invasive surgery, fusion, and non-fusion procedures. He treats patients of all ages with a variety of spinal disorders including stenosis, spinal cord compression, disc bulges, or herniations, and he specializes in treatment of athletic spine injuries and scoliosis correction.

Dr. DeWal serves as Section Chief of Spine Surgery at St. Catherine of Siena Medical Center. His commitment to the community is evident by the many educational seminars he provides to hospital staff, school nurses, and the community on topics including scoliosis screening, postoperative care, and advanced innovative minimally invasive/laser technology. He has authored several book chapters, published numerous articles related to the spine, and lectured to professionals at national meetings.

Medical Degree:

State University of New York Downstate Medical Center
Brooklyn, New York


Orthopaedic Surgery Resident:
New York University – Hospital for Joint Diseases
New York, New York

Hospital Appointments:

Section Chief of Spinal Surgery
St. Catherine of Siena Medical Center
Smithtown, New York


  • Spinal Surgery Fellow:
    Department of Neurological Surgery
    Department of Orthopaedic Surgery
    The Cleveland Clinic Foundation
    Cleveland, Ohio

  • Research Fellow:
    New York University – Hospital for Joint Diseases
    Musculoskeletal Research Center
    New York, New York

Hospital Affiliations:

  • Huntington Hospital, Huntington, New York
  • St. Catherine of Siena Medical Center, Smithtown, New York
  • Good Samaritan Hospital Medical Center, West Islip, New York
  • North Shore University Hospital, Manhasset, New York
  • St. Francis Hospital, Roslyn, New York
  • Peconic Bay Medical Center, Riverhead, New York