James L. Case, M.D.

Dr. Case's Specialties

  • Neurology
  • Sleep Medicine
  • Clinical Neurophysiology
  • Electromyography (EMG)
  • Neurovascular Ultrasound
  • Botox Therapy

Undergraduate: B.A. and B.S., Southern Illinois University, Carbondale
Medical Education:
M.D., University of Illinois College of Medicine, Chicago
Residency: Dartmouth-Hitchcock Medical Center, Hanover, NH
Internship: University of Illinois, Louis A. Weiss Memorial Hospital, Chicago

Dr. James Case is a board-certified neurologist specializing in neurology, sleep disorders, clinical neurophysiology, electrodiagnostic medicine and neurovascular ultrasound. He joined CNOS after neurology residency at Dartmouth Hitchcock Medical Center in Hanover, New Hampshire.

Dr. Case received his medical degree from the University of Illinois College of Medicine in Chicago. His board certifications include Neurology, Sleep Medicine (ABPN, ABSM), Clinical Neurophysiology (APBN) (EEG, Electroencephalography, Electromyography, Evoked Potentials), and Electrodiagnostic Medicine (ABEM). He also holds qualification in neurovascular ultrasound (carotid duplex and transcranial Doppler monitoring) from the American Society of Neuroimaging.

Dr. Case serves on the active medical staff of Mercy Medical Center and St. Luke’s Regional Medical Center in Sioux City, IA. He is the Medical Director of Neurodiagnostics and Sleep Disorders Laboratory at UnityPoint Health – St. Luke's. He performs a monthly Neurology and EMG outreach clinic at Sioux Center Community Hospital and Mercy Medical Center in Sioux City, IA.

I came to CNOS for help with my headaches.  I have never felt heard or had my health care explained to me so thoroughly. I strongly recommend Dr. Case! - Kelly R. patient

Dr. Case 's Team

At CNOS you'll have a whole team supporting your care. Our team approach is just one way we show our commitment to excellence and improving your health. If you have any questions during your treatment, your care team can help.

Sue Vigdal Headshot

Sue Vigdal

Nurse Practitioner