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Online SchedulingAbout Jonathan L. Berliner, MD, Director of the ONS Outpatient Joint Replacement Center, is a board certified orthopaedic surgeon and fellowship-trained specialist in hip and knee replacement. His expertise includes muscle sparing anterior hip replacement, minimally invasive total knee and partial knee replacement, complex revision total hip and total knee replacement, computer-assisted surgery, and trauma […]
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Frank Aversano
About Frank J. Aversano, MD, is an orthopedic surgeon who is fellowship trained in the diagnosis and treatment of pediatric and adult hand and upper extremity conditions. Dr. Aversano’s expertise includes treatment of arthritis of the hand, wrist, elbow, and shoulder including joint replacement; fractures and sports injuries of the hand and upper extremity; tendon […]
Paul Apostolides
About Paul Apostolides, MD is a fellowship-trained neurosurgeon specializing in spine surgery and section head of neurosurgery at Greenwich Hospital. He has extensive experience in minimally invasive and reconstructive spine surgery including minimally invasive spinal fusion. Dr. Apostolides graduated from Stanford University and University of Massachusetts Medical School. He completed his residency at the Barrow […]
Marc S. Kowalsky
About Dr. Kowalsky currently sees patients in the ONS offices in Greenwich, Harrison, and Stamford. Marc Kowalsky, MD is a board-certified orthopedic surgeon, with subspecialty certification in Sports Medicine by the American Board of Orthopaedic Surgery. He completed two subspecialty fellowships: the first in Sports Medicine at Lenox Hill Hospital/Nicholas Institute of Sports Medicine and […]