John J. Yu, M.D.

"The good physician treats the disease; the great physician treats the patient who has the disease. – William Osler"
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About Dr. Yu

John J. Yu, M.D., is a board-certified orthopedic surgeon specializing in injuries of the shoulder, hip, knee, foot and ankle. He provides complete, comprehensive, and state-of-the-art orthopedic care including total joint replacements, sports medicine, and fracture care of all ages. His expertise includes nonoperative and operative (arthroscopic) treatment of shoulder, hip, knee, foot, and ankle disorders. He specializes in joint cartilage restoration/preservation of the knee and ankle, surgery of the meniscus, rotator cuff and labrum, as well as ligament and tendon repair/reconstruction of the knee, shoulder and ankle.

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Hospital Affiliations
  • Mather Hospital, Port Jefferson, NY
  • Stony Brook University, Stony Brook, NY
  • St. Charles CHSLI, Port Jefferson, NY
  • Southampton Hospital, Southampton, NY

Surgery Center Affiliations
  • Port Jefferson Surgery Center, Port Jefferson Station, NY

Professional Affiliations
  • American Orthopedic Foot and Ankle Society
  • American Academy of Orthopedic Surgery, Fellow
  • Suffolk County Orthopedic Society
  • New York State Medical Society

Licensures & Certifications
  • New York State License

Medical Education
  • State University of New York, Stony Brook School of Medicine, Stony Brook, NY, 2005

  • General Surgery, NYU Hospital for Joint Diseases, New York, NY, 2006

  • Orthopedic Surgery, NYU Hospital for Joint Diseases, New York, NY, 2010

  • Foot and Ankle Surgery, NYU Hospital for Joint Diseases, New York, NY, 2012

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Ron Carlson
Ron Carlson


Trigger finger releases & ankle treatment

Dr. Yu has performed several trigger release procedures on both hands over the past several years. A...