You Deserve Better Hearing

626-963-7200 Glendora | 714-776-8757 Anaheim

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About Us

Our goal is to provide you the best possible hearing care, based upon your individual needs. We provide a comprehensive array of services related to evaluation, rehabilitation and prevention of hearing impairment. These services include comprehensive hearing evaluations, specialized diagnostic testing, and industrial hearing screenings.

Choosing a hearing professional is one of the most important decisions a hearing impaired person can make. Since a hearing aid cannot be prescribed like eye glasses, proper hearing aid recommendation and fitting is highly dependent on the judgment and skill of the professional selecting the instrument. We test your hearing, select and dispense the hearing instrument best to meet your needs, in additon to ,providing support, counseling and service of the hearing system. We are concerned about the person and make hearing solution recommendations to fit your lifestlye and personal needs.

Protecting your hearing can make a big difference. We can help you protect your hearing from further deterioration through education about what affects your hearing, as well as the proper use and care of hearing protection devices.

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Our Staff

Worthy Diana Worthy
Hearing Instrument Specialist



Diana Worthy has been in the Hearing Health Care Industry since 1984. She began her career in a private practice and became licensed in the state of California as a Hearing Instrument Specialist. In 1990 she accepted a position at a major hearing aid manufacturer and during her time there enjoyed a variety of roles. Diana managed customer service and the patient clinic working with difficult to fit clients. She also worked in the education and training department teaching other professionals about hearing aid technology and fitting strategies. Diana decided to return to private practice doing what she loves and does best, helping people achieve a better quality of life through better hearing.

Ruzicka Terry Ruzicka




 Since 1981 Terry Ruzicka has dedicated his life to the hearing impaired.

He enjoys helping people with their hearing needs and improving their quality of life. Over the years he has held various manufacturing positions in quality, product development and hearing aid fittings, specializing in difficult to fit hearing losses. In addition to his manufacturing background Terry has spent a significant amount of time in private practice working for ENT’s and Audiologists. He is a well known speaker and educator in the hearing industry and continues to train audiologists, dispensers and Ear Nose and Throat doctors on the fine art of fitting hearing instruments.

Terry Ruzicka holds a dispensing license in the state of California as well as his Board Certification in Hearing Instrument Sciences.


Critchley Mary Critchley
Audiologist



Mary Critchley has been a clinical audiologist and hearing instrument specialist for the last 15 years.  She received her Undergraduate degree from Cal Poly San Luis Obispo and Graduate degree from Cal State Los Angeles. Prior to opening her private practice, Mary was employed by a major hearing aid manufacturer for 10 years where she was able to refine her diagnostic skills along with perfecting the hearing instrument fitting process. Today, Mary truly feels that helping the hearing impaired lead quality improved lives is her ultimate goal.