
Gregory J. Maag is the owner and Director of Audiology of Mid America Audiology Group.
Greg earned his bachelors of science degree in Speech Language Pathology and Audiology from Southern Illinois University-Edwardsville and his masters degree in audiology from University of Illinois-Champaign. After several years experience in different settings, he founded Mid America Audiology Group in 1988.
As a certified clinical audiologist, Greg has enjoyed helping those with hearing difficulties improve the quality of their lives through the use of the most advanced hearing instrument technology available. He and his audiologist team now provide professional hearing services in seven locations.
Joe Hopper earned his bachelor’s degree in Communication Disorders with an emphasis in Speech Language Pathology and Audiology and his master’s degree Clinical Audiology from Central Missouri State University.
He enjoys working with the pediatric population as well as adult diagnostics, rehabilitation, and hearing aids. He is eager to discuss your individual hearing needs in depth and ensure that you get the best possible help.
Susan Hamilton eanred bachelor’s degrees in both Nuclear Medicine and Speech and Hearing Sciences at the University of Oklahoma and Southern Illinois University- Edwardsville. She earned her master’s degree in Audiology from Washington University in St. Louis.
Susan has over 11 years experience providing clinical diagnostic audiology and vestibular services, as well as expertise in the proper selection and fitting of digital hearing aids. She is dedicated to helping people overcome their hearing difficulties through amplification, and is passionate about the difference bette rhearing can make in the lives of her patients.
For almost three decades, Mid America Audiology Group has been helping the people of Alton, Edwardsville, Granite City and surrounding communities in Southern Illinois improve their lives through better hearing.
Our mission is to give excellent hearing health care and customer service with a personal touch. We strive to help people reconnect to their world through education, quality service and the most current technology available today. Your satisfaction is first and foremost. Our staff are experts at helping people hear better in a caring, friendly environment.
We have many convenient locations so serve the entire area:
Alton -main office:
1417 Washington Ave, Suite 2
Alton, IL 62002
Granite City office:
Gateway Regional Medical Center
2120 Madison Ave, Suite 108
Granite City, IL 62040
Staunton office:
Staunton Community Memorial Hospital
400 Caldwell Street
Staunton, IL 62088
Greenville office:
Greenville Regional Hospital Outpatient Clinic
200 Healthcare Drive
Greenville, IL 62246
Edwardsville area office:
Ginger Creek
9 Glen-Ed Professional Office Park
Glen Carbon, IL 62034
Chester office:
Chester Memorial Hospital
1900 State St
Chester, IL 62233
Waterloo office:
Red Bud Family Practice
1335 Jamie Lane, Suite 2
Waterloo, IL 62298
Call us today to schedule an appointment and learn how we can help you. We look forward to speaking with you.
Comprehensive Diagnostic Audiological Evaluation (Hearing Test)
State-of-the-Art Hearing Aid Evaluation, Fitting and Follow up visits
Free Lifetime Unlimited programming Visits
Hearing Aid Testing and Repair
Assisted Listening Devices
Custom Swim Plugs and Hearing Protection
Balance Disorder Testing and Treatment Procedures (ENG/VNG Testing)
Tinnitus Evaluations and Recommendations (Ringing in the Ears)
Earwax Removal
Batteries
Consumer Education
| Monday | 8:30 am - 5:00 pm by Appointment |
| Tuesday | 8:30 am - 5:00 pm by Appointment |
| Wednesday | 8:30 am - 5:00 pm by Appointment |
| Thursday | 8:30 am - 5:00 pm by Appointment |
| Friday | 8:30 am - 5:00 pm by Appointment |




“The audiologist was extremely helpful. I took my mother who needed a test for her hearing and possibly some ...” more »
“The audiologist was extremely informative about the exam and helpful about my hearing loss.”