Sleep Medicine Expert Witnesses in Illinois

Pulmonary Disease, Sleep Medicine - Asthma, Central Sleep Apnea, COPD, Cough, CPAP, Drowsy Driving, Emphysema, Hypersomnia, Insomnia, Lung Cancer, Narcolepsy, Obstructive Sleep Apnea, Parasomnia, Pneumonia, Pulmonary Embolism, Pulmonary Nodule, REM Behavior Disorder, Respiratory Failure, Restless Legs Syndrome, Sarcoid

Dr. Roy Artal is a multi-board-certified physician specializing in pulmonary medicine, sleep medicine, and critical care medicine, with more than 20 years of full-time clinical practice in Southern California. He has served as a medical-legal expert witness on behalf of both plaintiff and defense counsel for over 20 years, having reviewed 100-plus cases, provided deposition testimony on approximately 20 occasions, and authored detailed, evidence-based medical-legal reports; his opinions have never been excluded. A graduate of the UCLA School of Medicine, Dr. Artal completed his undergraduate degree with honors at the University of Southern California, his Internal Medicine residency at Cedars-Sinai Medical Center, and fellowship training in Pulmonary and Critical Care Medicine through the Cedars-Sinai–UCLA–Veterans Administration Combined Fellowship Program. He has been in full-time clinical practice since 2001 and is a member of the Division of Pulmonary and Critical Care Medicine...

Carpentersville , Illinois

Otolaryngology, Sleep Medicine - Allergy, Balloon ET procedures, Rhinology, Dive medicine , Hearing , Vertigo, Head & Neck Surgery, Laryngology, Thyroid, Rhinoplasty, Sinus Surgery, Balloon Sinus procedures

John T. McMahan, MD, FACS is a board-certified otolaryngologist with over 40 years of clinical and surgical experience. He completed fellowship training in Head and Neck Oncology and has extensive experience across the full spectrum of otolaryngology, including general ENT, rhinology, sinus disease, sleep-related procedures, and complex airway management. Dr. McMahan served on the faculty at Northwestern University and has held multiple clinical and leadership roles in both academic and private practice settings. His career includes comprehensive surgical care, perioperative management, and evaluation of complex diagnostic and treatment decisions in otolaryngology. He has over 20 years of experience as a medical-legal consultant and expert witness, providing services to both plaintiff and defense counsel. His work includes medical record review, case merit assessment, expert report preparation, deposition testimony, and trial consultation. Areas of expertise include standard of c...