Michael O’Sullivan, M.D.

 Connor Ziegler, M.D.

Board Certified in Orthopedic Surgery


Joint Replacement Surgery, including total hip and total knee replacements, partial knee replacements, minimally invasive total joint replacements, computer navigated total joint replacements, outpatient total hip and total knee replacement, and complex primary or revision total joint replacements.

Education & Postgraduate Training

Fellowship: Adult Reconstructive Surgery, Rush University Medical Center, Chicago, IL

Internship and Residency: Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT

Medical School: Tufts University School of Medicine

Undergraduate: Boston College

Professional Activities:

American Academy of Orthopaedic Surgeons

American Association of Hip and Knee Surgeons

Hospital Affiliations:

Baystate Medical Center