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Orthopaedics involves the treatment of your musculoskeletal system – your bones, joints, ligaments, tendons, and muscles.

At Knoxville Hospital & Clinics (KHC), we’ve built an exceptional orthopaedic program – unlike those found at other rural critical access hospitals or many other hospitals in the country. We’re leading the way in advanced imaging technology to help us determine an accurate diagnosis; offer minimally invasive surgical techniques and arthroscopic procedures to help you recover faster; and make rehabilitation, wellness and physical therapy an important part of your recovery and ongoing health.

KHC’s highly trained orthopedics team includes: board-certified orthopedic surgeons, nurses, physical therapists, occupational therapists, and clinical staff. Working in collaboration with you as the patient, each step of care and treatment is designed to meet your individual needs.

Mark Fish

Mark D. Fish, DO, FAOAO

Dr. Fish is a native of Des Moines and graduated from Des Moines University in 2001. He completed training in orthopaedic surgery in Michigan, and continued his training in Indianapolis with a Fellowship in Joint Replacement and Sports Medicine. He is a member of the clinical faculty and a lecturer at Des Moines University. Dr. Fish is currently Vice-President of Adult Reconstruction Arthritis Section, for the American Osteopathic Academy of Orthopaedics.

Medical Education: Des Moines University College of Osteopathic Medicine – Doctor of Osteopathic Medicine; Moody Bible Institute, BA Youth Ministries
Residency: Michigan State University – Orthopaedic Surgery
Certifications: American Osteopathic Board of Orthopaedic Surgeons
Specialties: Total Joint Arthroplasty (Hip, Knee, Shoulder), Arthroscopic Surgery, Sports Medicine

To make an appointment to see Dr. Fish, please contact his office at Capital Orthopaedics (515) 440-2676


Ian Lin, MD

Dr. Lin is employed by Des Moines Orthopaedic Surgeons (DMOS) and specializes in general orthopedics with special interests in joint replacement, arthroscopy,sports medicine, and trauma care. He received his undergraduate degree from Grinnell College and medical degree from the University of Iowa Medical School. He completed his orthopedic residency at Carolinas Medical Center. He is board certified by the American Board of Orthopedic Surgery, is a fellow with the American Academy of Orthopedic Surgeons, and a member of the America & Iowa Podiatric Medical Societies.

To book an appointment to see Dr. Lin at the Knoxville Hospital & Clinics, please contact his office at DMOS (515) 299-6361.


Todd PetersonTodd C. Peterson, DO

Dr. Peterson is leading Iowa and the Midwest in robotics-assisted partial and total knee replacement surgeries. Dr. Peterson became a member of KHC’s Medical Staff July 1, 2017. He is also affiliated with Capital Orthopaedics and Sports Medicine of Clive, Iowa. See his professional profile.

To book an appointment to see Dr. Peterson at the Knoxville Hospital & Clinics, please call (641) 842-1441.