(847) 392-2250


 Products and Services 


Technological advances in hearing instruments
make possible today what once was just a dream.

State of Our Art

Our audiologists keep apprised of new technologies as they develop, commited to promptly informing and educating patients about new advances. As innovations emerge, the advantages to patients are considered and the audiologists recommend hearing systems that fit the patients' communicative needs. We dispense hearing instruments from leading industry manufacturers, which include Phonak, Unitron, and Widex.

Diagnostic Services

  • Comprehensive audiological evaluation.
  • Impedance audiometry.
  • Auditory site of lesion testing.
  • Electronystagmography (ENG/VNG).
  • Audiotory brainstem evoked response (ABR).

Rehabilitative Services & Products

  • Hearing instrument fitting,repair and adjustment.
  • Earmold selection and impression.
  • Aural rehabilitation including counseling, orientation and instruction.
  • Batteries for hearing instruments.
  • Assistive listening devices.
  • Noise protection.

Northwest Speech and Hearing Center, Ltd. provides the highest quality hearing health care through comprehensive audiology and hearing amplification. The Center is committed to providing state-of-the-art diagnostic and rehabilitative tools needed for the detection and management of hearing disorders.

Call today for more information regarding hearing loss and the services available at Northwest Speech and Hearing Center, Ltd.

Who we are

Northwest Speech and Hearing Center, Ltd. offers a full range of diagnostic services, rehabilitation services and products for persons of all ages with hearing loss. Licensed audiologists provide the full scope of hearing health care services at our modern facilities with state-of-the-art equipment.


Mary Cay Chisholm, Au.D., CCC-A is the director of Northwest Speech and Hearing Center, Ltd. A professional staff of licensed audiologists provide services to patients from the community in Arlington Heights, Northwest Suburbs and Greater Chicago Metropolitan Area. As a longtime leader in the audiology industry, referrals to colleagues throughout the nation are available.