Louis J. Mariorenzi, MD

  • Joint Replacement Surgery
  • Board-Certified Orthopedic Surgeon

About Louis J. Mariorenzi, MD

Dr. Louis J. Mariorenzi obtained his medical degree at Brown University in Providence, RI.  After general surgery training at St. Luke’s–Roosevelt Medical Center in New York, NY, he completed an orthopedic residency at Tufts–New England Medical Center in Boston, MA.  Following orthopedic residency he sought fellowship training in adult hip and knee arthritis and joint replacement surgery at The Royal London Hospital Medical College in London, UK.

In 1987, Dr. Louis J. Mariorenzi returned home to RI to join his father A. Louis Mariorenzi MD and later his brother Michael P. Mariorenzi MD at Orthopaedic Associates where he has now practiced for over 30 years.  Dr. Mariorenzi has held numerous leadership positions on many boards and committees at St. Joseph Hospital-Our Lady of Fatima Hospital and Roger Williams Medical Center.  He has been voted “Top Doc” in orthopedic surgery by his peers in Rhode Island Monthly magazine nearly every year since the initial publication in 1994.  Dr. Mariorenzi specializes in treatment of adult arthritis and joint replacement surgery.  Away from the medicine, he enjoys hiking, sailing, skiing and mountaineering.  He has successively climbed all “Seven Summits” including Mt. Everest.

  • Undergraduate: Brown University, Providence, RI
  • Medical: Brown University, Providence, RI
  • General Surgery internship: Columbia University/St. Luke’s–Roosevelt Medical Center, New York, NY
  • Orthopaedic Surgery residency: Tufts University/New England Medical Center, Boston, MA
  • Fellowship Adult Hip and Knee Arthritis and Joint Replacement Surgery: The Royal London Hospital Medical College, London, UK
Professional Affiliations
  • The Arthritis Foundation
  • American Academy of Orthopaedic Surgeons
  • New England Orthopaedic Society
  • Rhode Island Orthopedic Society
  • Society for Adult Reconstructive Arthritis
  • American Association of Hip and Knee Surgeons
Leadership Positions
  • Chief, Division of Orthopaedic Surgery at Roger Williams Medical Center
  • Board Member, Roger Williams Medical Center Advisory Board
  • Chairman, Credentials Committee Roger Williams Medical Center
  • President, Medical Staff Roger Williams Medical Center (former)
  • Chairman, Executive Committee Roger Williams Medical Center (former)
  • National Board of Medical Examiners
  • American Board of Orthopaedic Surgery
  • Licensed in Rhode Island and Massachusetts

Cranston, RI

Cumberland, RI

Need to book an appointment?

Click the button and complete the form to schedule an appointment.  Once submitted, we will be in contact with you shortly regarding your request.

© 2023 Orthopaedic Associates, Inc. All rights reserved​

Request An Appointment

For urgent injuries that need immediate assistance, we offer same day or next day appointments.  For all other appointments, you will receive a callback within 2 business days.

  • MM slash DD slash YYYY
  • This field is for validation purposes and should be left unchanged.