Mark Steven Fixley

Professional Information

• Dr. Fixley has a special interest in sleep medicine and its application and association with congestive heart failure and coronary artery disease. He also has a special interest in Intensive Care Medicine. He was an assistant professor at the Kansas Medical Center from 1977-1980. He is also an Associate Clinical Professor of Medicine, Oklahoma City Health Sciences Center from 1981 to present. He serves as the Medical Director of Sleep Clinic Respiratory Therapy at Oklahoma Heart Hospital.

Professional Societies

• Oklahoma Medical Association
• American Medical Association
• American Thoracic Society
• American College of Physicians
• American College of Chest Physician
• American Society of Critical Care Medicine
• American Association of Sleep Medicine

Fellowship

• Pulmonary Disease, University of Kansas Medical Center and McGill University, Montreal, Canada

Postgraduate Training

• University of Kansas Medical Center, Lawrence, Kansas

Specialty Certification

• American Board of Internal Medicine
• American Board of Internal Medicine - Pulmonary Medicine
• American Board of Internal Medicine - Critical Care Medicine