Dr. Mark Rieger

Mark Rieger



Mark Rieger, MD is a board certified pediatric orthopedic surgeon and the founding partner and senior physician at The Pediatric Orthopedic Center. His expertise in trauma, sports medicine, arthroscopy, scoliosis, clubfoot and hip disorders is matched only by his compassion for his patients. His knee and shoulder arthroscopy skills earned him recognition as one of the “Top 100 Minimally Invasive Surgeons in the Tri-State Area” by New York magazine.

He earned his medical degree at the University of Connecticut School of Medicine and completed his surgical internship and orthopedic surgical residency at Long Island Jewish Medical Center. Dr. Rieger was a pediatric orthopedic fellow at the internationally acclaimed Alfred I. DuPont Hospital for Children and has served as Chief of Pediatric Orthopedics at Morristown Medical Center. He is an Assistant Professor at NYU Langone Medical Center, where he performs scoliosis surgery as a member of an internationally recognized spine center.

Dr. Rieger is a fellow of the American Academy of Orthopedic Surgeons (AAOS), the Pediatric Orthopedic Society of North America (POSNA), the Scoliosis Research Society (SRS), and the Orthopedic Research Society (ORS). Because of this expertise, he is a frequently requested speaker and lecture extensively to physicians, nurses, physical therapists, trainers and parents to educate and pass on his experience and knowledge to the next generation.

In his free time, he enjoys spending time with this family and friends, reading, traveling, rowing and relaxing at his favorite lake in upsate New York.

Magazine Awards

  • Bone & Joint Surgery Select, New Jersey Monthly, 2021 & 2022
  • New Jersey Top Doctors – Pediatric Orthopedics, New Jersey Monthly, 2006-2022
  • Favorite Kids’ Docs – Pediatric Orthopedics, New Jersey Family, 2009–2022
  • Top Doctor, Inside Jersey, 2011-2019


  • Best Doctor in America, 2007-2010
  • Patient’s Choice, 2012-2015
  • Most Compassionate Doctor, 2011
  • Who’s Who 2019

Professional Affiliations

  • American Academy of Orthopedic Surgeons
  • Pediatric Orthopaedic Society of North America
  • Scoliosis Research Society
  • American Medical Association
  • The Orthopedic Research Society
  • New Jersey Orthopedic Society
  • Medical Society of New Jersey

Pediatric Orthopedic Interests

  • Pediatric sports injuries
  • Fracture care
  • Sports medicine and arthroscopy
  • Scoliosis
  • Clubfoot
  • Hip disorders

Noteworthy Accomplishments

Dr. Rieger was chosen by the current White House to be available to provide pediatric orthopedic care for the children and grandchildren of the President and Vice President’s families while in New Jersey.

Dr. Rieger is a member of New York University Langone Hospital spine service, the first pediatric orthopedist on staff at Morristown Medical Center, the first in New Jersey to perform endoscopic spine surgery and hip ultrasound and be certified in Ponseti clubfoot technique.

He also volunteered his time and expertise as part of a medical mission to Egypt to treat children with complex pediatric orthopedic conditions and teach orthopedic surgeons.

Education & Professional Experience


Doctorate of Medicine, University of Connecticut School of Medicine, Farmington


Pediatric Orthopedist


Orthopedic Surgery, Long Island Jewish Medical Center, North New Hyde Park


Alfred I. duPont Hospital for Children, Pediatric Orthopedic, New Castle County



Practice Areas

Adolescent Sports Medicine

Foot and Ankle

Hospital Affiliations

Know Before Your First Visit

Verify the date and time of your appointment. You may be required to complete new patient paperwork or provide personal information prior to being seen by your doctor. Please arrive approximately 30 minutes prior to your appointment time.

Confirm the address and location of your appointment. The Pediatric Orthopedic Center has four convenient locations in New Jersey. Confirm with the front desk staff the office location for your visit.

Be aware of travel issues and delays. Be mindful of any driving conditions, road construction detours and parking requirements to ensure you arrive for your appointment on time.

Urgent Care for Acute Injuries (Cedar Knolls)

Walk-In Hours Update

*Urgent and Acute Injuries Only during Urgent Care/Walk-in Clinic hours. To find out if your child’s injury qualifies for a walk-in visit, click here. (Walk-in fees may apply.)


Regular Hours: 9am-5pm
Walk-in Hours* (Cedar Knolls): 5pm-8pm


Regular Hours: 9am-5pm
Walk-in Hours* (Cedar Knolls): 5pm-8pm


Regular Hours: 9am-5pm
Walk-in Hours* (Cedar Knolls): 5pm-8pm


Regular Hours: 9am-5pm
Walk-in Hours* (Cedar Knolls): 5pm-8pm


Regular Hours: 8am-5pm
NO walk-in hours.


Walk-in Hours* (Cedar Knolls): 10am-2pm

Sunday: Closed

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