Our Experts

At Southern California Orthopedic Institute, our specialty-trained doctors are recognized leaders in the diagnosis and treatment of orthopedic conditions and injuries. When you are seen by one of our experts, you know that you are being treated by an experienced doctor who is focused and dedicated to providing you exceptional orthopedic care.

To learn more about our physician assistants who work with our orthopedic doctors, please click on the tab above.

To search for an orthopedic doctor by name, specialty, or location, please use the options below.

David M. Auerbach, MD

Specializes in Trauma Surgery, Reconstructive Microsurgery, and Arthroscopic Surgery of the Hand, Wrist, Elbow, and Shoulder.

Michael S. Bahk, MD

Specializes in sports medicine and arthroscopy, with comprehensive surgery of the Shoulder, Elbow and Knee, including ligament reconstruction, tendon repair, joint replacement, and fracture care.

Babak Barcohana, MD

Specializes in the surgical and non-surgical treatment of Spinal Disorders involving the Neck, Back, and Spine, utilizing Microsurgical and Minimally Invasive Techniques.

Andrew M. Blecher, MD

Board Certified in Primary Care Sports Medicine, specializing in Sports Medicine and non-surgical treatment of orthopedic and musculoskeletal injuries, including the shoulder, knee, ankle, hip and elbow with a special focus on Regenerative Medicine for joints, ligaments and tendons of athletes and non-athletes of all ages.

A. Elizabeth Blozé, MD

Specializes in non-surgical Physical Medicine and Rehabilitation, the non-surgical treatment of musculoskeletal and sports related injuries, and the diagnosis and treatment of spinal and peripheral nerve injuries.

Joseph P. Burns, MD

Specializes in Comprehensive, Minimally Invasive Reconstructive Shoulder Surgery, Arthroscopic Reconstruction of the Knee, and Sports Medicine. 

Deborah A. Castañeda, MD

Specializes in surgery of the foot and ankle and has extensive experience in the surgical and nonsurgical treatment of foot and ankle injuries and conditions.

Edmund H. Choi, MD

Specializes in Comprehensive Spine Care, Minimally Invasive Spine Surgery, Adult and Pediatric Spinal Deformity

Brian Dierckman, MD

Specializes in Arthroscopic Procedures of the Shoulder, Hip, and Knee.

Kamil Erfanian, MD

Specializes in surgery of the Hand, Wrist, and Microvascular Surgery.

John L. Etcheverry, DPM

Specializes in the medical and surgical treatment of the foot and ankle.

Jonathan Falakassa, MD

Specializes in the Spine and Minimally Invasive Spine Surgery.

Orthopedic Surgeon, Fellowship-trained in Sports Medicine and Foot and Ankle Surgery.

Richard D. Ferkel, MD

Specializes in Arthroscopic and Reconstructive Surgery of the Knee, Shoulder, Foot, and Ankle, Cartilage Restoration of the Ankle, and Sports Medicine.

Marc J. Friedman, MD


Robert Gazmarian, MD

Board Certified in Physical Medicine and Rehabilitation, specializing in Sports Medicine, Disorders of the Musculoskeletal System, and Electrodiagnostic Medicine.

Mark H. Getelman, MD

Specializes in Arthroscopic and Minimally Invasive Reconstructive Surgery of the Shoulder and Knee, and Sports Medicine.

Brian S. Grossman, MD

Specializes in surgical and non-surgical treatment of conditions of the cervical, thoracic and lumbar spine of children and adults including scoliosis/spinal deformity surgery.

Carlos A. Guanche, MD

Specializes in Arthroscopy of the Shoulder, Hip and Knee, Traditional and Reverse Shoulder Replacement, and Sports Medicine.

Christopher Hamilton, MD

Specializes in Arthroscopic and Reconstructive Surgery of the Shoulder, Elbow, Knee, Sports Medicine, and Joint Replacement of the Shoulder and Knee.

Gregory J. Hanker, MD

Specializes in both traditional orthopedic surgery and arthroscopic surgery of the Hand, Wrist, and Elbow; Fracture care; and Medical-Legal Upper Extremity evaluations.

Jaime D. Hernandez, MD

Board Certified orthopedic surgeon who specializes in hip and knee replacement. Each year, he performs over 500 joint replacements. He was specialty trained in hip and knee replacement at Harvard Medical School's Brigham and Women's Hospital.  He is a member of the American Association of Hip and Knee Surgeons (AAHKS), the specialty society for surgeons focused on hip and knee replacement.

Jonathan S. Jaivin, MD, FACS

Specializes in Medical and Surgical Management of all problems related to the Foot and Ankle.

Ronald P. Karzel, MD

Specializes in Arthroscopic and Reconstructive Surgery of the Shoulder, Knee, and Sports Medicine.

Trevor P. Lynch, MD, FACS

Specializes in Hand and Upper Extremity Reconstructive Microsurgery.

Richard L. Masserman, MD

Specializes in Agreed Medical Examinations, Independent Medical Examinations, and Qualified Medical Examinations involving workers' compensation cases.

Patricia C. McKeever, MD

Specializes in Pediatric and Adolescent Orthopedic Injuries (including Sports Injuries), Spinal Deformities, Scoliosis and Congenital Deformities of the Hip.

Todd D. Moldawer, MD

Specializes in surgical and non-surgical treatment of Disorders of the Spine.

Todd J. Molnar, MD

Specializes in Physical Medicine and Rehabilitation, with emphasis on Sports Medicine.

William H. Mouradian, MD

Specializes in Treatment of Spinal Disorders, including Conservative Treatment and all aspects of Spinal Surgery, with special emphasis on Minimally Invasive Procedures and complex Revision Spinal Surgery.

Jared A. Niska, MD

Specializes in Hand, Wrist, and Elbow Surgery in Pediatrics and Adults with a Special Interest in Fractures and Sports Injuries, Arthroscopic Surgery, and Microsurgery.

Specializes in Arthroscopic and Reconstructive Surgery of the Hip and Knee, Unicompartmental or Partial Knee Replacements, and Knee Arthroscopy for torn cartilage.

Mark L. Schamblin, MD

Specializes in Arthroscopic and Reconstructive Surgery of the shoulder, knee, and elbow with a special interest in Sports Medicine and the treatment of the injured athlete.

Steven A. Schopler, MD

Specializes in minimally invasive spine surgery, scoliosis, microsurgery of the spine, pediatric orthopedics, biomechanics, spinal devices and implant technology.

Todd Shapiro, MD

A fellowship-trained orthopedic surgeon specializing in sports medicine with special focus on shoulder and elbow surgery.

Paul M. Simic, MD

Specializes in Surgery of the Hand, Wrist, Elbow and Shoulder, Microsurgical Reconstruction and Arthroscopic Surgery of the Hand and Upper Extremity.

Stephen J. Snyder, MD

Specializes in Arthroscopic Surgery and Reconstructive Procedures of the Shoulder Joint.

Richard J. Spelts, DO

Specializes in the Nonoperative Medical Treatment of Sports/Orthopedic injuries in athletes and non-athletes, including the Pediatric, Adult and Geriatric populations, as well as Regenerative Medicine.

David K. Wahba, MD

Specializes in Pain Management

At Southern California Orthopedic Institute, our physician assistants (PAs) work closely with our orthopedic doctors to provide the highest level of surgical and nonsurgical care for patients.

Physician assistants are highly trained healthcare providers who work under the supervision of our orthopedic doctors to take medical histories, conduct exams, diagnose and treat bone, joint, and muscle injuries and conditions, order and interpret tests such as X-rays and MRI, prescribe medications, and assist our doctors during surgery. Our PAs are trained to recognize when patients need the attention of a supervising doctor or additional specialist.

To read frequently asked questions about physician assistants, please click the FAQ link below.

FAQ: Physician Assistants

To learn more about our physician assistants at Southern California Orthopedic Institute, please use the links below.

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