About Us: Meet Our Physicians

Our Physicians

Hospital Affiliations

* Roger Williams Medical Center
* St. Joseph Hospital – Our Lady of Fatima
* Landmark Medical Center

Gregory J. Austin, MD

Board-Certified Orthopaedic Surgeon

Kenneth R. Catallozzi, MD

Board-Certified Orthopaedic Surgeon

Christopher N. Chihlas, MD

Board-Certified Orthopaedic Surgeon

Robert J. Fortuna, MD

Board-Certified Orthopaedic Surgeon

Lisa K. Harrington, MD

Board-Certified Rheumatologist

Joseph T. Lifrak, MD

Board-Certified Orthopaedic Surgeon

A. Louis Mariorenzi, MD

Board-Certified Orthopaedic Surgeon

Louis J. Mariorenzi, MD

Board-Certified Orthopaedic Surgeon

Michael P. Mariorenzi, MD

Board-Certified Orthopaedic Surgeon

Sidney P. Migliori, MD

Board-Certified Orthopaedic Surgeon

Ira J. Singer, MD

Board-Certified Orthopaedic Surgeon