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Kevin Cassidy, MD

Kevin Cassidy, MD

Dr. Kevin Cassidy is originally from Queens, New York and attended the prestigious Regis High School in Manhattan. He completed his undergraduate education at Lehigh University where he graduated with honors with a Bachelor of Science in biochemistry. In 2008 he earned his medical degree from New York University School of Medicine at Langone Medical Center. Dr. Cassidy then completed a five-year residency program in orthopaedic surgery at New York Presbyterian Hospital - Columbia University Medical Center in 2013, where he served as chief resident during his final year. During his residency training, Dr. Cassidy was honored with several awards, including the award for Clinical Excellence in 2010 and the award for Excellence in Trauma Care in 2011. He was also named Resident of the Year and Teacher of the Year in 2013. After his residency, Dr. Cassidy completed a fellowship in adult reconstruction and joint replacement at the Hospital for Special Surgery. Dr. Cassidy specializes in the operative and non-operative management of hip and knee arthritis, as well as complex primary and revision joint replacement. He has also been trained in partial knee replacement, computer-assisted surgery, robotic-assisted surgery, and the anterior approach to hip replacement. Dr. Cassidy is a member of the medical staff at both North Shore University Hospital at Manhasset and St. Francis Hospital. He is a candidate member of the American Academy of Orthopaedic Surgeons. Dr. Cassidy has produced multiple publications, including a textbook chapter and a peer-reviewed journal article; he has also presented his research at multiple national meetings.


  • Orthopedic Surgery
  • Orthopedic Surgery, Adult Reconstructive

Hospital Affiliations

  • St. Francis Hospital

Education and Training

  • Medical School, New York University School of Medicine, New York, NY
  • Internship, Columbia Presbyterian Medical Center, New York, NY
  • Residency, Columbia Presbyterian Medical Center, New York, NY
  • Fellowship, Hospital for Special Surgery, New York, NY


  • Primary LocationOrthopaedic Associates of Manhasset, P.C. - Great Neck600 Northern Blvd, Ste 300Great Neck, NY 11021Ph: (516) 627-8717Fax: (516) 365-1634Get Directions
  • Orthopaedic Associates of Manhasset, P.C. - Commack500 Commack Rd Ste 150BCommack, NY 11725Ph: (516) 627-8717Fax: (516) 365-1634Get Directions
  • Orthopaedic Associates of Manhasset, P.C. - Hicksville750 S BroadwayHicksville, NY 11801Ph: (516) 627-8717Fax: (516) 365-1634Get Directions

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