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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (14)

The overall average patient rating of Dr. John Feder is Good. Dr. Feder has been reviewed by 52 patients who have provided 14 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 3.4
Courteous Staff 3.4
Accurate Diagnosis 3.7
Bedside Manner 3.6
Spends Time with Me 3.5
Follows Up After Visit 3.5

Specialties & Research

Dr. John Feder, MD is board certified in Orthopaedic Surgery.

  • He has special expertise in 4 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Sports Medicine

Education & Awards

Dr. Feder graduated from New York Medical College, Valhalla.


Dr. Feder has 15 hospital affiliations:

  • Mercy Medical Center 
  • North Shore/Long Island Jewish Hospital System - Franklin Hospital Med Ctr 


  • Italian
  • Portuguese
  • Spanish

> > > > Dr. John Feder, MD

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Additional Information
Dr. John Feder MD is a male Orthopaedic Surgeon, has 24 years of experience and practices in Orthopaedic Surgery.
Where does Dr. John Feder practice?
Dr. John Feder has 2 office locations.
Dr. John Feder practices Orthopaedic Surgery near Rockville Centre, NY.
Additional practice locations include: Bohemia, NY.
See Rockville Centre Surgeons.