Division of ENT (Otolaryngology) 
Phone: 217-545-8000
Fax: 217-545-0253
Email: ent@siumed.edu  
Make an Appointment
SIU logo
Faculty banner image

Bio Sketch

Leonard P. Rybak, MD, PhD
Division of Otolaryngology - Head and Neck Surgery

Best Doctors image


Research Interests/Areas of Expertise:


Dr. Leonard P. Rybak, is a professor and ear, nose and throat specialist whose general otolaryngology practice focuses on sinus disease and obstructive sleep apnea. Dr. Rybak received his medical degree from the Medical College of Wisconsin-Milwaukee and completed his internship at Hennepin County Medical Center in Minneapolis. He completed a residency in otolaryngology and also obtained a PhD at the University of Minnesota-Minneapolis.

Dr. Rybak served as an Assistant Professor of Otolaryngology at the University of Minnesota prior to coming to the SIU School of Medicine. Dr. Rybak's professional affiliations include the American College of Surgeons, and the American Academy of Otolaryngology -- Head and Neck Surgery. Locally, he is a member of the Sangamon County Medical Society and of various committees at St. John’s Hospital and the SIU School of Medicine. He serves as president of the Sangamon County Chapter of the Society for Neuroscience.

As a clinician and surgeon, Dr. Rybak's special interests include general otolaryngology, sleep apnea, and head and neck surgery. Known both nationally and internationally for his research in the field of otolaryngology, Dr. Rybak has published and presented numerous articles and chapters dealing with various aspects of ear, nose and throat diseases. He is certified by the American Board of Otolaryngology.

For more information or to schedule an appointment with Dr. Rybak, please call 217-545-8000.

Full CV download here