Dr. Louis J. Mariorenzi, M.D. is a board-certified orthopedic surgeon who is fellowship-trained in the treatment of adult arthritis and joint replacement surgery. He 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.
Dr. Louis J. Mariorenzi, M.D. is a board-certified orthopedic surgeon who is fellowship-trained in the treatment of adult arthritis and joint replacement surgery. He 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.
The reviews listed below were collected independently of University Orthopedics through rater8. Each review represents an authentic and verified patient experience.
Excellent surgeon
(4 days ago)
Dec-2025
Dr Louis gave me excellent service.
(4 days ago)
Dec-2025
Thank you for everything with my sore knees. Happy retirement to you.
(1 week ago)
Dec-2025
Great doctor, great surgeon and describes everything in layman’s terms. All the best on your retirement Doc
(1 week ago)
Dec-2025
Excellent doctor a great job on my knee and I would recommend him to all my friends
(2 weeks ago)
Nov-2025
Thorough and to the point. My surgery went very well and I’m recovering as expected.
(3 weeks ago)
Nov-2025
Very
(1 month ago)
Nov-2025
Great visit with a great doctor! I’m very sad he is retiring!😢😢😢
(1 month ago)
Oct-2025
Excellent visit
Very thank
(1 month ago)
Oct-2025
I love him, Caring, sincere and you always see him not his physician assistant . He’ll do his best to make you comfortable
(1 month ago)
Oct-2025
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University Orthopedics - Cranston, RI
725 Reservoir Ave, Suite 101 Cranston, RI 02910
Dr. Louis J. Mariorenzi, M.D. is a board-certified orthopedic surgeon who is fellowship-trained in the treatment of adult arthritis and joint replacement surgery. He 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 practice with his father A. Louis Mariorenzi MD and later his brother Michael P. Mariorenzi, MD. 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. Away from the medicine, he enjoys hiking, sailing, skiing and mountaineering. He has successively climbed all “Seven Summits” including Mt. Everest.
Excellent surgeon
Dr Louis gave me excellent service.
Thank you for everything with my sore knees. Happy retirement to you.
Great doctor, great surgeon and describes everything in layman’s terms. All the best on your retirement Doc
Excellent doctor a great job on my knee and I would recommend him to all my friends
Thorough and to the point. My surgery went very well and I’m recovering as expected.
Very
Great visit with a great doctor! I’m very sad he is retiring!😢😢😢
Excellent visit Very thank
I love him, Caring, sincere and you always see him not his physician assistant . He’ll do his best to make you comfortable