Our Team

Mark Theiss, MD 
Chairman, Department of Orthopedics
Inova Fairfax Hospital
Research interests: Total joint replacement, implant design

Jihui Li, PhD
Director, Biomechanics Lab
703-208-6038
Research interests: Biomechanical research on total joint replacement, orthopedic trauma injuries, sports injuries, orthopedic oncology, spine surgery and pediatric orthopedic surgery.

Cary Schwartzbach, MD
Chief, Orthopedic Trauma Section
Inova Regional Trauma Center
Research interests: orthopedic trauma injuries

Robert Hymes, MD
Orthopedic Traumatologist
Research interests: orthopedic trauma injuries

Alireza Malekzadeh, MD
Orthopedic Traumatologist
Research interests: orthopedic trauma injuries

Jeff Schulman, MD
Orthopedic Traumatologist
Research interests: orthopedic trauma injuries

Sidney Chetta, MD
Orthopedic Surgeon
Research Interests: total joint replacement

Samuel Hawken, MD
Orthopedic Surgeon
Research interests: total joint replacement

Kathleen McHale, MD
Orthopedic Surgeon
Research Interests: pediatric orthopedics

Matthew Buchanan, MD
Podiatrist
Research interests: foot and ankle surgery

Steven Neufeld, MD
Podiatrist
Research interests: foot and ankle surgery

David Pontell, DPM
Podiatrist
Research Interests: foot and ankle surgery, podiatry