COVID-19 update: Find info for patients. Non-essential elective surgeries are postponed. No walk-in patients for imaging services. If you have flu-like symptoms, schedule a video visit with your doctor or use Virtual Urgent Care.

Skip to main content

John G. Kennedy, MD

  • Specialties: Orthopedic Surgery, Foot & Ankle Surgery
  • Language: English
  • Phone: 929-455-2670
Request an Appointment

About Me

My interest in sports medicine is the result of my long personal history with sports. Having competed at national and international levels in track, rugby, fencing, and waterskiing, I’ve had my fair share of injuries and broken bones.

After fracturing my tibia in a friendly game of rugby, I became fascinated by the screws and plates used to patch me up. I decided not only to pursue a career in sports medicine but also to focus on foot and ankle injuries.

As director of the Foot and Ankle Center at NYU Langone, I specialize in Achilles tendon injuries, ankle instability, and ligament reconstruction, and offer my patients individualized treatments that may include either surgical or nonsurgical options.

I pride myself on offering my patients treatments that make the most sense for them individually. If surgery is necessary, I thoroughly explain the procedure and what they can expect afterward. Not everyone needs surgery, however. My team and I have been at the forefront of investigating nonsurgical treatments for orthopedic injuries and conditions. As a result, we are able to offer patients platelet-rich plasma (PRP) therapy, stem cell therapy, and fat cell therapy.

I have collaborated with many national and international universities on research studies about cartilage regeneration, tendon healing, and bone growth. This effort has resulted in more than 200 publications and more than 500 national and international presentations.

As one of the founding members of the International Society on Cartilage Repair of the Ankle (ISCRA), I’ve helped pioneer innovative technologies to help prevent cartilage degeneration. At ISCRA, my colleagues and I brought together a group of surgeons from more than 40 countries to create universal treatment strategies for osteochondral lesions of the talus.

This collaborative effort, the first of its kind, may have profound and long-lasting effects on the diagnosis and treatment of these types of injuries. It’s one of the proudest moments of my career and a testament to the world-class clinical care we offer at the Foot and Ankle Center.

Conditions and Treatments

  • loose body
  • hallux rigidus
  • ankle instability
  • plantar fasciitis
  • avascular necrosis of bone
  • foot arthritis
  • fracture healing
  • Posterior Tibial tendon dysfunction
  • hammer toe
  • osteochondritis dissecans
  • sesamoiditis
  • ankle pain
  • bunion
  • broken ankle
  • foot deformity
  • fracture nonunion
  • achilles tendonitis
  • sports injury
  • stress fracture
  • metatarsalgia
  • ankle tendinitis
  • bursitis
  • foot injury
  • foot fracture
  • knee arthritis
  • achilles tendon rupture
  • ankle injuries
  • ankle sprain
  • ankle tendon tear
  • flat feet
  • foot tendinitis
  • foot pain
  • knee pain
  • ankle arthritis
  • cartilage repair
  • minimally invasive surgery
  • debridement
  • ligament reconstruction
  • foot surgery
  • knee arthroscopy
  • arthroscopic surgery
  • ankle arthroscopy
  • knee surgery
  • platelet rich plasma
  • ankle surgery


  • Professor, Department of Orthopaedic Surgery
  • Chief Division of Foot and Ankle Surgery
Education and Training
  • Fellowship, Hospital for Special Surgery, Foot & Ankle Surgery, 2003
  • Fellowship, Mem Sloan-Kettering Cancer Ctr, Oncologic Surgical, 2002
  • Fellowship, Children's Hospital (Boston, MA), Pediatric Orthopedic, 1996
  • Fellowship, Tufts University School of Medicine, Reconstruct Surgery, 1996

Is this your profile?

Edit profile

Insurance Plans Accepted

Locations and Appointments

Schedule a Video Visit with Your Doctor

Many of our doctors offer video visits, so you can see a doctor from your mobile device instead of an in-person appointment. Log into the NYU Langone Health app to schedule a video visit with a member of your care team, or select the video visit option when you schedule with a new doctor. Learn more about video visits.

Joan H. and Preston Robert Tisch Center at Essex Crossing

171 Delancey Street
New York, NY 10002


Read All Publications (202)

Related News