Eligible pensioners & veterans receive free hearing aid services and have the option of free hearing aids. Alternatively, you can purchase more advanced hearing aid technology and pay a gap fee in addition to your government subsidy.

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ONDC has a reputation for being the premier provider of hearing rehabilitation and hearing and balance diagnostic services in South Australia. We welcome referrals from General Practitioners, ENT and other Medical Specialists.

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Established in 1982 by seven ENT Specialists to provide a central location where patients could receive high quality diagnostic evaluations. The number of ENT Directors has increased over the years as new ENT Specialists have joined ONDC.

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The ONDC Difference - The name you can trust for all your diagnostic and rehabilitative services

The leading provider of hearing rehabilitation and advanced diagnostic services for hearing and balance disorders in South Australia.
ONDC is a proudly independent business, privately owned by 31 ENT Specialists and is not owned by a hearing aid manufacturer.

Hearing & Balance Testing

At ONDC you will be given a comprehensive evaluation of your hearing and receive advice about your options.

University Qualified Audiologists

We only employ university qualified Audiologists with extensive experience in customer care.

Hearing Aids

We have a client focussed approach. Our Audiologists will consider all relevant factors when recommending the best option for you.

Hearing Aid Repairs & Maintenance

At ONDC we can perform minor repairs to hearing aids as well as general cleaning and servicing of aids.


We are independent and privately owned by 31 Ear Nose and Throat Specialists. We are not owned by a hearing aid manufacturer.

The leading provider of advanced diagnostic services for hearing and balance disorders

ONDC welcomes referrals from GPs, ENT and Medical Specialists.

Please contact me for further information...