Orthopedic Doctors

A Team Approach

With more than 20 physicians covering every aspect of orthopedics, physical medicine, pain management and sports medicine, we offer a team approach to musculoskeletal care and the benefit of conferring opinions right on site.

Muir Orthopaedic Specialists’ physicians have outstanding credentials from the nation’s most prestigious medical institutions and have been serving patients in Contra Costa County for more than 20 years.

Our Orthopedic Specialists

Semon Bader | Concord Muir Orthopaedic Specialists

Semon Bader, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Sports Medicine, Joint Preservation & Arthroscopic Surgery

Dr. Leo Calafi, Muir Orthopaedic Specialists

Leo A. Calafi, M.D.

Orthopedic Trauma Surgeon

Clinical Interest & Practice Focus
Trauma Surgery, General Orthopaedics, Fracture Care & Post-Traumatic Deformity

Dr. Michael Chang, Muir Orthopaedic Specialists

Michael Y. Chang, D.O.

Orthopedic & Physiatry Specialist

Clinical Interest & Practice Focus
Physical Medicine, Rehabilitation, Spine & Musculoskeletal System, Pain Management & Physiatry



Dr. David Contreras, Muir Orthopaedic Specialists

David M. Contreras, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Orthopedic Surgery, Sports Medicine & Knee Replacement

Dr. Christopher Coufal, Muir Orthopaedic Specialists

Christopher J. Coufal, M.D.

Orthopedic Trauma Surgeon

Clinical Interest & Practice Focus
Trauma Surgery & Fracture Care

Dr. Bradley Crow | Concord Muir Orthopaedic Specialists

Bradley D. Crow, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Lower Extremities, Knee, Hip & Joint Pain, Revision & Replacement



Dr. Eric Fulkerson, Muir Orthopaedic Specialists

Eric W. Fulkerson, M.D.

Orthopedic Specialist, Trauma Surgeon

Clinical Interest & Practice Focus
Trauma Surgery, Fracture Care, Post-Traumatic Deformity/Infections & Neck, Chest, Abdomen & Extremities Injuries

Dr. John Knight, Muir Orthopaedic Specialists

John M. Knight, M.D.

Orthopedic, Sports Medicine & Trauma Surgeon

Clinical Interest & Practice Focus
Total Joint Replacement, Hip Arthroscopy, Sports Medicine, Trauma & Joint Reconstruction

Dr. Joseph Kou, Muir Orthopaedic Specialists

Joseph X. Kou, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Foot & Ankle Surgery, Deformity Correction & Lower Extremity Surgery



Dr. John Kronick, Muir Orthopaedic Specialists

John L. Kronick, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Hip & Knee Reconstructive Surgery & Joint Replacement

Dr. Douglas Lange, Muir Orthopaedic Specialists

Douglas M. Lange, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Hip & Knee Total Joint Reconstruction & Replacement

Dr. Steven Lee, Muir Orthopaedic Specialists

Steven S. Lee, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Spine Surgery, Spinal Disorders & Treatment of Neck & Back Conditions



Dr. Donald Lewis, Muir Orthopaedic Specialists

Donald M. Lewis, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Hand, Elbow & Shoulder Surgery & Reconstruction, Sports Medicine & Arthroscopy

Dr. John Merson | Muir Orthopaedic Specialists

John K. Merson, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Sports Medicine, Knee Injury & Replacement

Dr. Michael Michlitsch, Muir Orthopaedic Specialists

Michael G. Michlitsch, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Sports Medicine, Shoulder, Elbow & Knee Surgery & Arthroscopy



Dr. Ramiro Miranda

Ramiro A. Miranda, M.D.

Orthopedic Surgeon, Sports Medicine Specialist

Clinical Interest & Practice Focus
Sports Medicine, Total Knee Replacement & Treatment of the Shoulder & Knee, Arthroscopy

Dr. Murali Moorthy Muir Orthopaedic Specialists

Murali Moorthy, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Foot & Ankle, Sports Medicine, STAR Ankle Replacement

Dr. Joseph Narloch, Muir Orthopaedic Specialists

Joseph A. Narloch, M.D.

Physical Medicine & Rehab Specialist

Clinical Interest & Practice Focus
Physical Medicine & Rehabilitation, Electrodiagnostic Medicine



photo-dr-david-nelles | Muir Orthopeadic

David Nelles, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Spine Surgery, Spinal Disorders, Neck & Back Conditions

Dr. Matthew Pecci

Matthew Pecci, M.D.

Non-Surgical & Alternative Medicine Specialist

Clinical Interest & Practice Focus
PRP, Sports & Family Medicine, Non-Surgical Treatment & Concussions

Dr. Charles Preston, Muir Orthopaedic Specialists

Charles F. Preston, M.D.

Orthopedic Surgeon & Sports Medicine Specialist

Clinical Interest & Practice Focus
Sports Medicine, Knee, Shoulder & Elbow Arthroscopy



Dr. Abid Qureshi, Muir Orthopaedic Specialists

Abid A. Qureshi, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Spinal Surgery & Orthopedic Trauma Surgery

Dr. Michael Sacco | Muir Orthopaedic Specialists

Michael F. Sacco, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Upper Extremity Surgery including Shoulder, Elbow, Wrist & Hand Injury

Dr. John Schilling, Muir Orthopaedic Specialists

John P. Schilling, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Hand, Elbow & Shoulder Surgery & Arthroscopy of the Hand, Elbow, Wrist & Shoulder



Dr. George Tischenko, Muir Orthopaedic Specialists

George J. Tischenko, M.D.

Orthopedic Surgeon & Sports Medicine Specialist

Clinical Interest & Practice Focus
Sports Medicine & Total Joint Replacement

Dr. Louay Toma, Muir Orthopaedic Specialists

Louay Toma, M.D.

Orthopedic Surgeon & Sports Medicine Specialist

Clinical Interest & Practice Focus
Trauma Surgery, Sports Medicine, Minimally Invasive Joint Replacement & Fracture Management

Dr. Craig Wiseman, Muir Orthopaedic Specialists

Craig M. Wiseman, M.D.

Orthopedic Surgeon & Sports Medicine Specialist

Clinical Interest & Practice Focus
Total Joint Replacement, Trauma & Sports Medicine



Dr. Wendy Wong, Muir Orthopaedic Specialists

Wendy W. Wong, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Total Joint Replacement & Revision, Trauma & Pelvic Reconstruction & Fracture Care

Dr. Richard Wyzykowski, Muir Orthopaedic Specialists

Richard J. Wyzykowski, M.D.

Orthopedic Surgeon

Clinical Interest & Practice Focus
Upper Extremity Problems, including Shoulder, Elbow, Wrist & Hand