Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Stephen D Koss, MD

Individual provider Sports Medicine (Orthopaedic Surgery) Physician · NPI 1265482897

Stephen D Koss, MD is an Orthopedic Surgery in Hackettstown, New Jersey. Graduated from University of Virginia School of Medicine in 1989, 37 years ago. Practices with North Jersey Sports Medicine and Orthopedic Center, LLC, a 28-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
37
Trained at
University of Virginia School of Medicine
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

108 Bilby Rd Ste 201
Hackettstown, NJ 07840-4174
Phone: (908) 684-3005
Fax: (908) 684-3301
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Orthopaedic Surgery) Physician (primary) Taxonomy 207XX0005X · Licence 25MA06416800 (NJ)

Record details

NPI number1265482897
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2006
Last updated in NPPESFebruary 13, 2013
Mailing address108 Bilby Road, Ste 201, Hackettstown, NJ 07840

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice North Jersey Sports Medicine And Orthopedic Center, Llc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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