Dr. Mark Klaassen is board certified in orthopedic surgery by the American Board of Orthopedic Surgeons and has practiced at Orthopedic and Sports Medicine Center of Northern Indiana since 1987. A fellow of the American College of Surgeons and American Academy of Orthopaedic Surgeons, Dr. Klaassen received his medical degree from the Indiana School of Medicine at Notre Dame and Indiana University Medical Center.
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