Our Physicians

With our roster of Board-certified and Fellowship trained physicians, the Tri-Valley Orthopedic Specialist group offers a wide range of treatments for musculoskeletal problems. Through its “Centers of Excellence” approach and the availability of in-house “Open MRI” for extremity imaging, patients can be assured that they will be evaluated and treated by a physician who is a practice leader in treating their particular problem.

Hand and Upper Extremity

  • Alexandra M. Burgar, M.D.

    Alexandra M. Burgar, M.D.

    Dr. Burgar treats conditions affecting the bones, muscles, nerves and tendons of the hand, wrist and arm up to and including the elbow.

  • Gregory Horner, M.D.

    Gregory Horner, M.D.

    As the leader of Tri-Valley Orthopedic Specialists’ hand surgery team, Dr. Horner treats conditions affecting the bones, muscles, nerves and tendons of the hand, wrist and arm up to and including the shoulder.

  • Igor Immerman, MD

    Igor Immerman, M.D.

    As an orthopedic surgeon with specialty training in Hand and Upper Extremity Surgery, Dr. Igor Immerman treats all conditions of the upper extremity, from the simple to the complex.

Sports Medicine & Arthroscopy

  • Kambiz Behzadi, M.D.

    Kambiz Behzadi, M.D.

    Dr. Behzadi is a board certified orthopedic surgeon in the bay area specializing in the management and surgical treatment of knee, shoulder and hip.

  • Roger D. Dainer, D.O.

    Roger D. Dainer, D.O.

    Dr. Dainer joined the Tri-Valley Orthopedic group in 1990, after 10 years of U.S. Naval Service. As a Board-certified Orthopedic Surgeon, he treats patients with a wide range of musculoskeletal problems.

  • Hany Elrashidy, MD

    Hany Elrashidy, M.D.

    Dr. Elrashidy’s clinical Practice focuses on sports medicine, with a particular interest in arthroscopy, shoulder surgery and the treatment of cartilage and ligamentous injury of the knee.

  • David J. Jupina, M.D.

    David J. Jupina, M.D.

    Dr. Jupina joined the Tri-Valley Orthopedic group in 1998. In addition to his busy orthopedic and sports medicine practice, he is currently team physician for our local Foothill High School athletes, and Orthopedic Surgery Consultant to the Federal Correctional Institution in Dublin, CA.

  • Ian A. Stine, M.D.

    Ian A. Stine, M.D.

    Dr. Stine is a fellowship-trained board certified orthopedic surgeon specializing in sports medicine, trauma, and joint reconstruction.

Foot and Ankle

  • Sean M. Dougherty, D.P.M.

    Sean M. Dougherty, D.P.M.

    Dr. Dougherty is a highly trained surgeon specializing in treating a wide range of foot and ankle conditions.

  • David Oji, MD

    David Oji, M.D.

    Dr. David Oji is a board eligible and fellowship trained orthopedic surgeon specializing in the operative and non-operative treatment of all aspects of foot and ankle disorders.

Spine

  • Andrew Hou, M.D

    Andrew Hou, M.D.

    Dr. Andrew Hou is an Interventional Spine physician specializing in the nonsurgical treatment of neck and low back disorders.

Joint Replacement

  • Kambiz Behzadi, M.D.

    Kambiz Behzadi, M.D.

    Dr. Behzadi is a board certified orthopedic surgeon in the bay area specializing in the management and surgical treatment of knee, shoulder and hip.

  • Hany Elrashidy, MD

    Hany Elrashidy, M.D.

    Dr. Elrashidy’s clinical Practice focuses on sports medicine, with a particular interest in arthroscopy, shoulder surgery and the treatment of cartilage and ligamentous injury of the knee.

  • David J. Jupina, M.D.

    David J. Jupina, M.D.

    Dr. Jupina joined the Tri-Valley Orthopedic group in 1998. In addition to his busy orthopedic and sports medicine practice, he is currently team physician for our local Foothill High School athletes, and Orthopedic Surgery Consultant to the Federal Correctional Institution in Dublin, CA.

  • David Oji, MD

    David Oji, M.D.

    Dr. David Oji is a board eligible and fellowship trained orthopedic surgeon specializing in the operative and non-operative treatment of all aspects of foot and ankle disorders.

  • Ian A. Stine, M.D.

    Ian A. Stine, M.D.

    Dr. Stine is a fellowship-trained board certified orthopedic surgeon specializing in sports medicine, trauma, and joint reconstruction.

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