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

Kenneth J Rieger, MD

Individual provider Orthopaedic Surgery Physician · NPI 1275559700

Kenneth J Rieger, MD is an Orthopedic Surgery in Chatham, New Jersey. Graduated from Columbia University College of Physicians and Surgeons in 2001, 25 years ago. Practices with New Jersey Spine Center, LLC, an 11-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
25
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
NJ
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

40 Main St
Chatham, NJ 07928-2431
Phone: (973) 635-0800
Fax: (973) 635-6254
Show map & directions

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

Additional practice locations (1)

  • 70 Sparta Ave Ste 202, Sparta, NJ 07871-1760 — (973) 635-0800

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 25MA08296300 (NJ)
Orthopaedic Surgery of the Spine Physician Taxonomy 207XS0117X · Licence 25MA08579500 (NJ)

Record details

NPI number1275559700
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2006
Last updated in NPPESFebruary 18, 2026
Certification dateFebruary 18, 2026
Mailing address40 Main St, Chatham, NJ 07928-2431

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 2001 (25 years in practice)
Group practice New Jersey Spine Center, Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount