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Ronald Grelsamer

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  • American Board of Orthopaedic Surgery


  • MD, Columbia University College of Physicians & Surgeons

  • Internship, General Surgery
    St. Lukes Roosevelt Hospital

  • Residency, Orthopaedic Surgery
    Columbia-Presbyterian Medical Center

  • Fellowship, Hip & Knee
    Columbia-Presbyterian Medical Center


    Dr. Grelsamer is the Chief of Patellofemoral Reconstruction in the Department of Orthopaedics at The Mount Sinai Medical Center.

    In the News:
    Dr. Grelsamer discusses a partial knee replacement in The Daily News feature, The Daily Checkup




  • 2000 - 2010
    Best Doctors
    New York Magazine

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Below are financial relationships with industry reported by Dr. Grelsamer during 2014 and/or 2015. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Royalty Payments:

  • Biomet, Inc.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website at Patients may wish to ask their physician about the activities they perform for companies.

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