Hearing Aid Manufacturers

I love history, so I thought I’d start a series on the history of a few major hearing aid companies. I can fit, repair, and reprogram just about any hearing aid from any company, but these are the ones I work with most often. Stay tuned. Next week I’ll dive into Oticon’s history. This week I’ll keep the blog post short. Carol, my husband, and my kids all say I should learn to take a break. My husband even got me a rocking chair one Christmas as a hint.

Oticon: 1905, Denmark
Phonak: 1947, Switzerland
ReSound: 1984, USA
Siemens: 1910, Germany
Starkey: 1963, USA
Widex:1956, Denmark

Audio Spectrum Explained

A patient of mine just told me about a website that explains the audio spectrum, audio production, microphones, sound waves, sound perception, and more: Teach Me Audio: No nonsense guide to Audio Production. Speech is between 250 and 8000 Hz, so those are the frequencies that get tested in an audiogram. (Actually, sometimes I test higher than that if someone is starting chemotherapy. Chemo is ototoxic and the toxicity shows up first in the ultra high frequencies. So I test above 8kHz before and at intervals after chemo. If hearing drops above 8 kHz, the oncologist knows chemo has reached ototoxic levels and they may choose to tweak the dosage a bit.)

While the whole website is fascinating, the Audio Spectrum page can help you check your hearing aids. If you can’t hear part of the frequency range between 250 and 8000 Hz when you’re wearing your hearing aids, they may need to be reprogrammed.


Tinnitus means noise in the ears or head. Hearing aids can help a LOT. Either the amplification of a hearing loss masks the tinnitus, or a tinnitus masker reduces stress by competing with it. It doesn’t seem like adding more sound to the tinnitus would help, but it does. One of my patients said, “It’s like it competes with the tinnitus, so it sort of keeps it in it’s place. Most manufacturers include a tinnitus masker in their hearing aids. Widex makes one that is particularly effective. Here are samples of the some of the masking “noises” it makes.


Everyone’s experience is different. It can sound like ringing, buzzing, or whistling, among many other sounds. It is often just a minor annoyance, but not always. Sometimes it’s severely stressful, even to to the point of causing serious depression. William Shatner shared his experience when he was the spokesperson for the American Tinnitus Association.


Telecoils are an old technology from the late 1930s and most hearing aids have them. They were originally designed to help hearing impaired people hear clearly on the phone. Today, they are used more often in theaters with an induction loop. A room is “looped” with a wire that receives the sound signal from the stage and then transmits it to the hearing aid. This turns hearing aids into something like a custom headset. A California hearing aid impaired group recently tried to pass legislation requiring audiologists to include a telecoil in every hearing aid. I encourage everyone to choose one with a telecoil, but, for some people, they’d rather forgo the feature in favor of either a smaller hearing aid or another feature like rechargeable batteries. If you have hearing aids and aren’t sure if you have a telecoil, you’re welcome to come by and I’ll check. If it’s in the aid, but not activated, it’s pretty easy to do so. I have included a video explanation of how a looped room works with a telecoil in the Hearing In Noise section of this website. Ampertronic has a history of the induction loop on it’s website.

Hearing Aid Insurance Benefits

Always call the number on the back of your insurance card to see of you have hearing aid insurance benefits.  Ask if there is a special rate for in network providers.  If there’s no difference between in and out of network, then you can go to any hearing aid provider.  Also, ask about deductibles and how often they provide that hearing aid benefit.  Regardless of my status with an insurance company, I’m happy to submit claims electronically and that speeds up the process of considerably.  I’m in the process of applying to insurance companies.  Here is my current status.



  • Blue Shield
  • MediCal/CenCal
  • The Department of Rehabilitation


Waiting to be In-Network

  • EPIC (Applied this month)
  • Aetna (Applied 2 months ago)
  • Cigna (Applied 3 months ago)
  • Anthem Blue Cross (Applied 8 months ago)


Medicare does not cover hearing aids, but a lot of secondary insurances require the claim to go to Medicare first.  Once it gets rejected, Medicare forwards it to the secondary insurance.  Everyone who works with hearing aids knows that Medicare only covers an annual hearing test, not hearing aids.  For some reason we have to do the extra paperwork.



Because of a process called “credentialing”, becoming a provider takes a long time.  Credentialing is the process of establishing the qualifications of a licensed medical professional and assessing their background and legitimacy.  It takes months to become an in-network provider.  In the case of Anthem Blue Cross, it has taken 8 months so far.  We just signed a contract with them and now we’re waiting for them to sign it.  So far, I’ve been “credentialed” by Sansum Clinic, Blue Shield, Anthem Blue Cross, MediCal, Medicare, and the Department of Rehabilitation.  Maybe some day there will be a standard process where they just accept a diploma from a reputable university and call your last few employers.



It takes a lot of work to submit and process claims.  I usually spend a good portion of my Fridays working on insurance claims and it grows every year.  I anticipate there will be times when I will have to wait a month before I can see a new patient with insurance so that I have time to process the claim in a reasonable amount of time.  Maybe some day anyone with a hearing loss will have access to at least a good basic hearing aid, without lots of paperwork, regardless of income.

If This, Then That (IFTTT)

“If This, Then That”, or IFTTT is a cloud service that uses connections, called applets, to link internet enabled devices (like a TV, door bell, lights, or fire alarm).  It can also link devices to online services (like your email account, Facebook, or Twitter).  So hearing aids can now do some pretty useful and fun things you may never have imagined.


  • Your hearing aids can tell you when you get an email or when the door bell rings.
  • A mom can get an alarm on her phone when her daughter’s hearing aid batteries go low.
  • Your coffee maker can start when you close the battery doors on you hearing aids each morning.
  • You can hear a live music concert through your hearing aids.


Watch this video to see what I mean.

The website for the cloud service is

Customizing a Hearing Aid


(Probe Microphone Test)


Hearing aids are expensive, in part because customizing a hearing aid is labor intensive.  (I wrote a blog post earlier on affordable options.)  Unlike a non-medical, high tech device like a “smart” phone.  You buy a phone, thank the salesperson, and out you go.   It doesn’t take more than 10 minutes and the salesperson doesn’t need a college degree to know how to do it.  It’s also not like getting glasses.  They make the glasses based on your prescription and you’re out the door.  It doesn’t take more than an hour and, again, it doesn’t take a college degree to understand how to do it.  With hearing aids, the initial fitting and follow up visits for fine tuning throughout the life of the hearing aid take hours.  I also takes a graduate degree to do it well.


The standard of care for fitting hearing aids includes two tests: probe microphone test and a speech discrimination test.  I just learned from a hearing aid manufacturing rep that only about 10% of audiologists do the first one.  Without it, you have no idea how close the hearing aid is to the patient’s prescription.  A clinic in Minnesota made an excellent video explaining probe mic measurement.  Physical fit is also custom, but that’s for another blog post.