Meet Our Audiology Providers

At Century ENT, our audiology providers are dedicated to ensuring you capture every nuance of sound in life. They utilize advanced solutions to improve your auditory clarity and communication. Don’t let hearing challenges hold you back; trust in the expertise and technology of our specialists, with enhanced hearing just a phone call away.

Theresa Hall-Ferchau, M.A. CCC-A

Clinical Audiologist


Having worked with Dr. Susan Lyon for over 16 years, Teri as she’s known to her patients, provides warm, personal service to her patients. Whether it’s performing an audiogram, or programming a new set of hearing aids, patients can count on Teri to help them through the hearing aid purchase process and ongoing learning with their hearing aids. Teri has over 40 years of experience in her field of Audiology.

Clinical Expertise

  • Comprehensive Hearing Testing
  • Assessment of Balance Disorders 
  • Fitting and dispensing of hearing aid technology and rehabilitation 
  • Assistive Listening Devices 


Undergraduate School
Northern Illinois University, DeKalb, IL

Masters Degree
Northern Illinois University, DeKalb, IL 

Practice Locations

Oak Lawn

Language Spoken



American Speech & Hearing Association