Gregg Roger Klein, MD

Hip and Knee Orthopedic Surgery
Gregg Roger Klein image
4.9 out of 5, 
Hackensack Meridian Medical Group (HMG) Logo
Accepting new patients

HMH Orthopedic Specialists of New Jersey Paramus

650 From Road, Suite 420 Paramus, NJ 07652
See location

Gregg Klein, M.D., is a fellowship trained, board-certified orthopedic surgeon who specializes in primary and revision hip replacement, partial knee replacement, and primary and revision knee replacement. Dr. Klein and his colleagues recently established a new practice, Orthopedic Specialists of New Jersey.


Dr. Klein has particular interest in robotic joint replacement surgery, and is one of the developers and designers of a robotic knee replacement system used worldwide. He is an expert in specialized surgical techniques including direct anterior and mini-posterior hip replacement, and minimally invasive partial and total knee replacement. His specific areas of interest include hip and knee arthritis, avascular necrosis, osteonecrosis, and rheumatoid arthritis. Dr. Klein's goal is to improve the quality of life for each patient by helping them resolve their symptoms and getting them back to doing the activities they love.


He has served on the editorial board for the Journal of Bone and Joint Surgery, Clinical Orthopedics and Related Research, and the Journal of Arthroplasty. Dr. Klein has also published numerous scientific articles, textbooks, and book chapters in the field of orthopedics and joint replacement. He is actively engaged in ongoing joint replacement research. He is recognized as a Top Doctor by New Jersey Monthly, Castle Connolly, Bergen County Magazine and 201 Magazine.


Away from the office, Dr. Klein enjoys spending time with his wife and their two daughters. He is an avid runner and skier, and a frustrated golfer.


Meet The Doctors at Orthopedic Specialists of New Jersey

Titles

Vice-Chair of the Department of Orthopedic Surgery at Hackensack University Medical Center

 Associate Professor at the Hackensack University School of Medicine.

Publications

Podcasts

Provider Information

Specialties

Hip and Knee Orthopedic Surgery

Languages

English

Age groups seen

Adults

Hospital affiliations

Hackensack Meridian Medical Group
Hackensack University Medical Center

Education

Thomas Jefferson University Hospital
Fellowship, Adult Reconstructive Orthopaedic Surgery, 2004
Thomas Jefferson University Hospital
Residency, Orthopaedic Surgery, 2003
Thomas Jefferson University Hospital
Internship, Surgery (General Surgery), 1999
Sidney Kimmel Medical College at Thomas Jefferson University
Medical Education

Certifications

Orthopaedic Surgery - American Board of Orthopaedic Surgery - 2017

Verified Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
4.9 out of 5
651 ratings,
104 reviews
4/12/2026
I may need the other hip joint replaced within the next few years, and if so, I will definitely go back to Dr. Klein.
4/7/2026
Dr Klein was amazing throughout the process! He put me at ease with his knowledge, compassion and confidence.
12/8/2025
Dr. Klein and his team work like a well oiled machine. They know exactly what they're doing. They put you at ease and explain exactly what they're doing and what to expect.
12/2/2025
Very professional, providing excellent surgical care
11/25/2025
I'm completely satisfied with my provider

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Map & Directions

HMH Orthopedic Specialists of New Jersey Paramus

650 From Road, Suite 420 Paramus, NJ 07652
Monday - Friday

8:00 am - 4:00 pm

Saturday - Sunday

Closed