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Patient-centered orthopedic care
As a premier provider of comprehensive orthopedic care in Suffolk county, we provide patients with convenient access to our dedicated physicians who treat a broad range of orthopedic conditions.

About us

Northwell Health Orthopaedic Institute has facilities throughout Manhattan, Long Island, Queens, Staten Island and Westchester. We offer a full range of services for illnesses and injuries affecting the bones, muscles, ligaments and tendons.

Northwell Health Orthopaedic Institute at Smithtown is the premier provider of orthopedic care in the region. Our patients also have access to the vast resources and services offered by Northwell Health. Our expert team of sub-specialty trained orthopedic surgeons uses the most advanced technologies and techniques to provide individualized care for patients experiencing a broad range of musculoskeletal conditions. We perform thousands of procedures annually from minimally invasive procedures to total joint reconstruction. We offer a convenient and modern site while ensuring compassion and respect for all patients. Utilizing a collaborative care approach, we work closely with each patient’s healthcare team to provide customized treatment strategies for the best possible outcomes.


Our orthopedic specialists partner with other medical professionals (including nurses, physical and occupational therapists, pathologists and orthotics specialists) to deliver a full, multidisciplinary approach to treating your condition.

Our joint replacement orthopedists have the training, expertise and skill  to help improve your quality of life.

From pro athletes to weekend warriors, we treat many sports injuries including torn ligaments, concussions, broken bones and overextended muscles.

Our specialists restore mobility by treating strained or injured tendons and ligaments, fractures, dislocations and damaged joints.

Patient forms

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Our physicians

Robert Giulio Trasolini, DO

Specialties: Orthopaedic Surgery, Sports Medicine, Orthopaedic Sports Medicine

William Aloysius Healy, MD

Specialties: Orthopaedic Surgery, Joint Reconstruction

Keith R. Reinhardt, MD

Chief of Division - Joint Reconstruction, Department of Orthopaedic Surgery, Southside Hospital

Specialties: Orthopaedic Surgery, Joint Reconstruction

Northwell Health Physician Partners Orthopaedic Institute at Smithtown
222 Middle Country Road, Suite 340Smithtown, NY 11787
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