Doctors

Find a doctor near you.

Finding the right doctor can help you find the right care. Our CNOS physicians provide expert, specialty care for a range of medical conditions.

If you know your doctor's name, search for it here in our online physician directory. Or, find a new doctor by specialty or location. With CNOS physicians in more than 20 communities throughout Siouxland, our doctors are here for you and your family.

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Doctors

Meet Dr. Andrews

William J. Andrews, M.D.

Board Certified in General Neurology and Clinical Neurophysiology Fellowship Trained in Clinical Neurophysiology Neurology

Benjamin Bissell, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained in Orthopaedic Sports Medicine including Hip, Knee, & Shoulder Arthroscopy Orthopaedics, Sports Medicine, Joint Replacement

Joseph Carreau, M.D.

Fellowship Trained in Sports Medicine Board-Eligible Orthopaedic Surgeon Orthopaedics, Sports Medicine, Joint Replacement

James Case, M.D.

Board Certified in General Neurology, Sleep Medicine, Electrodiagnostic Medicine, and Clinical Neurophysiology Neurology

Carol Donahue, D.P.M.

Board Certified in Foot Surgery by the American Board of Foot and Ankle Surgery Fellow American College of Foot and Ankle Surgery Diplomate American Board of Foot and Ankle Surgery Podiatry

Quentin Durward, M.D., F.A.A.N.S.

Board Certified Neurosurgeon Fellow of the American Association of Neurological Surgeons Neurosurgery, Spine

Michael Espiritu, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained in Spine Surgery Fellow of the A.A.O.S. Orthopaedics, Spine, Joint Replacement

Jon Grudem, M.D.

Board Certified in General Neurology, Advanced Clinical Neurophysiology (ABPN and ACNS) with added competency in Intraoperative Monitoring Neurology

Meet Dr. Hartman

Elizabeth Hartman, M.D.

Board Certified Neurologist Fellowship Trained Multiple Sclerosis and Neuroimmunology Neurology

Mei He, M.D.

Board Certified in General Neurology, Clinical Neurophysiology, Sleep Medicine, and Vascular Ultrasound Fellowship Trained Clinical Neurophysiology Neurology

Meet Dr. Jacobson

Thomas Jacobson, MD, F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained Sports Medicine Orthopaedics, Sports Medicine

Meet Dr. Jensen

Wade Jensen, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained Orthopaedic and Neurosurgical Spine Surgery Spine, Orthopaedics, Joint Replacement

Meet Dr. Johnson

Brian Johnson, M.D., F.A.A.O.S

Board Certified Orthopaedic Surgeon Fellowship Trained Sports Medicine Orthopaedics, Sports Medicine, Joint Replacement

Matthew Johnson, M.D., M.P.H., F.A.A.N.S.

Board Certified Neurosurgeon Fellow of the American Association of Neurological Surgeons Neurosurgery, Spine

Daniel Kensinger, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Orthopaedics

Hendrik Klopper, M.D., F.A.A.N.S

Board Certified Neurosurgeon Neurosurgery, Spine

Meet Dr. Yorell Manon-Matos

Yorell Manon-Matos, M.D., F.A.C.S.

Board Certified in General Surgery, and Surgery of the Hand Fellowship Trained in Hand & Microsurgery Orthopaedics, Hand & Wrist

Ryan Meis, M.D., F.A.A.O.S.

Board Certified in Orthopaedic Surgery and Sports Medicine Fellowship Trained Sports Medicine and Knee, Shoulder & Elbow Surgery Orthopaedics, Sports Medicine, Joint Replacement

Steven Meyer, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained Orthopaedics and Pediatric Orthopaedics Orthopaedics, Spine, Joint Replacement

Meet Dr. Nelson

Daniel Nelson, M.D., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained in Adult Reconstruction / Joint Replacement Surgery Orthopaedics, Joint Replacement

Michael Nguyen, M.D., M.H.M., M.H.S.R.

Board Certified Primary Care Sports Medicine Physician Fellowship Trained in Sports Medicine Orthopaedics, Sports Medicine

Meet Dr. Reeder

Ralph Reeder, M.D., F.A.A.N.S.

Board Certified Neurosurgeon Fellow of the American Association of Neurological Surgeons Neurosurgery, Spine

David Rettedal, D.P.M., F.A.C.F.A.S.

Board Certified American Board of Foot and Ankle Surgery Fellow American College of Foot and Ankle Surgeons Podiatry, Orthopaedics

Raymond Sherman , M.D., F.R.C.S.C., F.A.A.O.S.

Board Certified Orthopaedic Surgeon Fellowship Trained in Upper Extremity & Knee Reconstruction Orthopaedics, Sports Medicine, Joint Replacement