About Us

Our Mission Statement

At Hearing Associates, we apply our knowledge, skills and experience every day to help our patients hear what they’ve been missing. We understand how hearing loss can impact lives, so we’ve committed ourselves to making sure people enjoy the broadest range of hearing possible. Our staff will listen, ask meaningful questions and use our many resources to deliver solutions that produce the best outcomes. 

Group of people over vintage colors background smiling with hand over ears
Group of people over vintage colors background smiling with hand over ears

About Us

Gary Dockum established Hearing Associates.

1987

Stu Trembath joined Hearing Associates as a co-owner.

1992

Our practice moved from its original location at the North Iowa Mercy Health Center West Campus to the Mason City Clinic Building to better provide hearing aid and audiology services to the residents of Mason City, Iowa and the surrounding areas.

1993

The practice added another location in the Mayo Clinic of Albert Lea, Minnesota, to further expand our reach to patients with hearing loss.

2003

Gary Dockum retired. Stuart Trembath continued to lead the team of audiologists as the sole owner of Hearing Associates, P.C.

2014

We opened a ninth office in Charles City, Iowa, in the spring of 2016.

2016

We began offering “Your Hearing Journey” classes to help hearing aid wearers improve their overall experience with their devices.

2016

We moved our Albert Lea, Minnesota office to a newly renovated space in the John and Susan Morrison Medical Plaza.

2021

Gary Dockum established Hearing Associates.

1987

Stu Trembath joined Hearing Associates as a co-owner.

1992

Our practice moved from its original location at the North Iowa Mercy Health Center West Campus to the Mason City Clinic Building to better provide hearing aid and audiology services to the residents of Mason City, Iowa and the surrounding areas.

1993

The practice added another location in the Mayo Clinic of Albert Lea, Minnesota, to further expand our reach to patients with hearing loss.

2003

Gary Dockum retired. Stuart Trembath continued to lead the team of audiologists as the sole owner of Hearing Associates, P.C.

2014

We opened a ninth office in Charles City, Iowa, in the spring of 2016.

2016

We began offering “Your Hearing Journey” classes to help hearing aid wearers improve their overall experience with their devices.

2016

We moved our Albert Lea, Minnesota office to a newly renovated space in the John and Susan Morrison Medical Plaza.

2021

Dedication to Excellence in Audiology