Our Staff

Meet Our Physicians

Robert W. McAllister, MD
Fellowship in total joint, adult reconstruction and orthopedic trauma surgery at Minneapolis Orthopaedic and Arthritis Institute, Minneapolis, Minnesota
John J. Mara, MD
Specializes in surgery of the hand and upper extremities, sports medicine and advanced arthroscopy of the shoulder, and reconstruction of the athlete’s knee
Randall J. Risinger, MD
Specializes in sports medicine, general orthopedics, advanced arthroscopic and open shoulder and knee surgery, shoulder and knee reconstruction, sports-related fractures; shoulder replacement
Aris D. Yannopoulos, MD
Specializes in Lumbar Micro-Discectomy, Laminectomy, Lumbar and Cervical Fusions, Arthroscopic Surgery and Sports Medicine
Andrew H. Litchfield, DPM
Specializes in Foot and Ankle Trauma, Foot and Ankle Reconstructive Surgery, Bunion Surgery and Lapiplasty, Ankle Arthroscopy
Stephen F. Scarangella, MD
Specializes in traumatic, neurological and arthritic reconstructive surgery involving the entire upper extremity which includes shoulder, elbow, and hand
Chad M. Daniel, MD
Specializes in total hip replacement surgery and total knee replacement surgery
Amy E. Bruce, DPM
Joining OSP January 2022
Specializes in Foot and Ankle Trauma, Foot and Ankle Reconstructive Surgery, Minimally Invasive Surgery, Bunion Surgery, Ankle Arthroscopy and Sports Medicine.

Meet Our Physicians Assistants

Elyssa L. Roberts, PA-C
Specializes in sports medicine, general orthopedics, hand, and upper extremity; managing pre- and post-operative patients
Christopher J. Berube, PA-C
Comprehensive knowledge and experience with traumatic musculoskeletal injuries including the spine, orthopedic oncology, hip and knee replacement
Wayne M. Perosky, PA-C
Certified Athletic Trainer; Current Chief Orthopedic Surgery PA at Saint Francis Hospital & Medical Center Connecticut Joint Replacement Institute (CJRI)
Allyson L. Forsyth, PA-C
Practices general orthopedic and trauma care, including conditions in the shoulder, hand, spine, knee, and hip with a special interest in sports medicine and osteoarthritis management
Robert B. Brancato, PA-C
Trained in sports medicine, orthopedic trauma, spine and hand injuries
Mark H. Cloutier PA-C
Trained in trauma care, emergency medicine and pre-operative and post-operative care to surgical patients
Malyssa E. Chanthasoto PA-C
Trained in trauma care, pre-operative and post-operative care to surgical patients and first assist in surgery
Alison C. Bruns, PA-C
Diverse clinical experience in general orthopedic, traumacare, emergency medicine, pre-operative, and post-operative care
Alexander D. Vendetto, PA-C
Diverse clinical experience in orthopedic surgery, general surgery, emergency medicine, internal medicine, and family medicine

Meet Our Management

Donna P. Rizzio, CMPE
Chief Executive Officer
Responsible for overall leadership, management and operations in all practice locations