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Compare the published Medicare service mix of Oren Feder, M.D. with clinicians in the same registry specialty: Orthopedic Surgery.

RUTHERFORD, NJ · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 251 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ari Douglas Seidenstein, M.D.

Orthopedic Surgery · Paramus, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
88%Service-mix similarity~8.5 milesView profile →

Gregg Klein, MD

Orthopedic Surgery · Paramus, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
84%Service-mix similarity~8.5 milesView profile →

Peter Andrew Salob, MD

Orthopedic Surgery · Englewood, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
82%Service-mix similarity~8.4 milesView profile →

Craig Hyatt Dushey, MD

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
80%Service-mix similarity~8.0 milesView profile →

Christopher Blum, MD

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
80%Service-mix similarity~8.9 milesView profile →

Chetan Gohal, M.D.

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
79%Service-mix similarity~9.1 milesView profile →

Paul Knapp

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
79%Service-mix similarity~9.7 milesView profile →

Douglas Unis, MD

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
79%Service-mix similarity~8.0 milesView profile →

Darwin D Chen, MD

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
79%Service-mix similarity~9.1 milesView profile →

Thomas Alexander Novack, M.D.

Orthopedic Surgery · Paterson, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
78%Service-mix similarity~5.2 milesView profile →

Giles Scuderi, M.D.

Orthopedic Surgery · New York, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
77%Service-mix similarity~9.0 milesView profile →

Sivaram Rajan, MD

Orthopedic Surgery · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 4 or more views (73564)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Aspiration and/or injection of fluid from large joint (20610)
77%Service-mix similarity~5.2 milesView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in approximate distance order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.