Dr. Kastenbaum is an authority in the field of orthopaedic surgery and a recognized expert in hip and knee surgery. He has performed more than 3,000 total hip and total knee replacements and has helped develop several total hip and knee prostheses that are in use worldwide. He also has extensive experience in treating sports-related injuries and performing arthroscopic surgery of the knee.

A native New Yorker, Dr. Kastenbaum earned his medical degree from the University of Health Sciences—The Chicago Medical School. After interning in general surgery at Lenox Hill Hospital, he completed a residency in orthopaedic surgery at the Hospital for Joint Diseases Orthopaedic Institute. He then completed fellowships in sports medicine at New York University Medical Center, and total hip and knee replacement surgery at the London Hospital Medical College.

After completing his specialty training, Dr. Kastenbaum returned to New York to join the staff of the Hospital for Joint Diseases Orthopaedic Institute as an attending physician. He also served as a clinical instructor in orthopaedic surgery at Mount Sinai School of Medicine.

In 1995, Dr. Kastenbaum was recruited to Beth Israel Medical Center and named Section Chief, Adult Reconstructive Joint Surgery. In 1996, he created the hospital’s first Comprehensive Arthritis Center of which he was named Co-Director and Surgeon-In-Chief. This unique facility provided comprehensive orthopaedic and rheumatologic care, including physical therapy, under one roof.

In 2002, Dr. Kastenbaum was asked to join the Insall Scott Kelly Institute for Orthopaedics and Sports Medicine, and was named the Associate Chairman of the Department of Orthopaedic Surgery. In 2005, he was named Vice Chairman of the Department of Orthopaedic Surgery.

In addition to his very busy clinical practice, Dr. Kastenbaum lectures and operates worldwide. He has trained more than 30 Asian Orthopaedic Fellows and returns to China yearly to perform complicated hip and knee surgical procedures. At Beth Israel, Dr. Kastenbaum has served as President of the Medical Board, continues to serve as the Chairman of the Committee on Surgery, was named Medical Director of Perioperative Services in August 2006 and Assistant Vice President/Medical Director of Perioperative Services in November 2007.

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