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Our Team

Ashley Bassett

Ashley Bassett

Orthopedic Surgery

Shoulder, Hip & Knee

Sports Medicine

Christopher Castro

Christopher Castro

Physiatry

Spine (non-operative)

Frank J. Corrigan

Frank J. Corrigan

Orthopedic Surgery

Hand & Wrist

Robert A. DeFalco, Jr.

Robert A. DeFalco, Jr.

Orthopedic Surgery

Shoulder, Hip & Knee

Sports Medicine

John M. Dundon

John M. Dundon

Orthopedic Surgery

Hip & Knee Reconstruction

Michael S. Gutkin

Michael S. Gutkin

Physiatry

Spine (non-operative)

Stephen Koss

Stephen Koss

Orthopedic Surgery

Shoulder, Hip & Knee

Sports Medicine

Jerome Rosman

Jerome Rosman

Orthopedic Surgery

Behnam Salari

Behnam Salari

Orthopedic Surgery

Spine & Neck

William Sayde

William Sayde

Orthopedic Surgery

Shoulder, Hip & Knee

Sports Medicine

Ferheen Shamim

Ferheen Shamim

Physiatry

Sports Medicine (non-operative)

Paul G. Teja

Paul G. Teja

Orthopedic Surgery

Shoulder, Hip & Knee

Sports Medicine

Kevin White

Kevin White

Orthopedic Surgery

Foot & Ankle

Jason J. Wu

Jason J. Wu

Rheumatology

Christian J. Zaino

Christian J. Zaino

Orthopedic Surgery

Hand & Wrist

Olga Debrin, PA-C

Olga Debrin, PA-C

PA's, APN-C and LPN's

Michael Gundell, PA-C

Michael Gundell, PA-C

PA's, APN-C and LPN's

Victoria Kummer, APN

Victoria Kummer, APN

PA's, APN-C and LPN's

Mary Moran, PA-C

Mary Moran, PA-C

PA's, APN-C and LPN's

Diane Niestepski, PA-C

Diane Niestepski, PA-C

PA's, APN-C and LPN's

A. J. Pfleger, PA-C

A. J. Pfleger, PA-C

PA's, APN-C and LPN's

Lindsey Roessler, PA-C

Lindsey Roessler, PA-C

PA's, APN-C and LPN's

Amy Wedderman, LPN

Amy Wedderman, LPN

PA's, APN-C and LPN's

Stephen Koss

Conditions & Treatment

Body parts

Service centers

Locations

Pin

Sparta Office

Get Directions

P: (908) 684-3005

Pin

Newton Office

Get Directions

P: (908) 684-3005

Pin

Milford, PA Satellite Office

Get Directions

P: (908) 684-3005

DateRequest an Appointment

Stephen Koss, MD is an Orthopedic Surgeon fellowship-trained in Sports Medicine with The Orthopedic Institute of New Jersey. 

Board Certified by the American Board of Orthopaedic Surgery, Dr. Koss is an attending physician at Newton Medical Center, where he previously served as the Chief of Surgery in the Department of Surgery.

Dr. Koss has been recognized as America’s Top Physician in Orthopedic Surgery for many years and is published in numerous orthopedic journals. He has also made presentations on a variety of subjects related to orthopedic care and sports medicine.

Dr. Koss, his wife, Debbie, and their two sons reside in Sparta, New Jersey. In his spare time, Dr. Koss enjoys tennis, outdoor activities and spending time with his family.

 

Practice:

Orthopedic Physicians

Clinical Expertise:

  • Arthroscopic Surgery
  • Joint Replacement
  • Ligament Reconstruction
  • Orthopedic trauma
  • Rotator Cuff Repair
  • Shoulder & Knee Instability
  • Shoulder, Knee & Hip Arthritis
  • Knee Meniscus Surgery

Education:

  • Fellowship training in sports medicine, New England Medical Center, Tufts University Department of Orthopaedic Surgery and Sports Medicine in Boston, MA.
  • Residency and Internship, University of Massachusetts Medical Center in Worcester, MA.
  • Medical Degree, School of Medicine at the University of Virginia in Charlottesville, VA.
  • Graduated magna cum laude with Phi Beta Kappa honors, Pomona College in Claremont, CA.

Languages:

English

Stephen Koss

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Our Patients

"I could not have imagined better results for the arthroscopy on my torn meniscus. Prior to the procedure, Dr. Koss made me feel quite confident in his ability and the favorable outcome. He was 100% correct. From the moment I came to, after the surgery, I had zero pain and zero discomfort. I was able to put full weight on my corrected knee and I have had no trouble walking around on it. In fact, the leg with the procedure done, already feels 10 times better than the knee I have yet to have corrected. I anticipate my second knee procedure to be just as successful. Thank you Dr. Koss! You have my highest recommendations."