HearWell Audiology

"Hearing Well is Living Well!"
(13 Reviews)
Call: (408) 335-6178
14911 National Ave Ste 2 Los Gatos, CA 95032

Clinic staff


John Miles


Doctor of Audiology

After growing up at the beach in sunny Southern California, John left to study in the redwoods at Humboldt State University where he received his Bachelor's in Education. He eventually moved to San Francisco to earn his Masters of Science in Audiology. His Doctorate in Audiology was obtained from Salus University in Pennsylvania.

Dr. Miles has been a practicing audiologist since 1980 and went into private practice in the late 1980's. He says, "The science of hearing and hearing aid technology is fascinating, but my biggest reward of being at work is getting to know my patients through their stories. I have learned so much from them."

He loves anything that has to do with the outdoors, including: camping, hiking, kayaking, skiing, and biking. He enjoys reading non-fiction books and has a particularly keen interest in orcas, otters, and hummingbirds.


Janet Snyder-Miles

Doctor of Audiology
Janet is a native Californian with humble beginnings in Taft. Her family moved from the hot and dry Central Valley when she was 12 years old, to the mountainous and cold state of Alaska, where her love of nature and outdoors began. After high school, she left Alaska to attend San Diego State University, where she graduated with a M.A. in Audiology in 1980. She then received her Doctorate of Audiology in 2003 from the School of Audiology at Salus University.
Dr. Snyder-Miles has been working in private practice since 1986 and currently practices in both our Sonoma and Los Gatos offices. She strives to create the ultimate patient experience and is dedicated to improving her patients quality of life by delivering the most accurate hearing assessment as possible.

Jennifer DeCastro


Doctor of Audiology

Jennifer joined HearWell Audiology in the spring of 2013 with over 25 years of experience in a variety of medical settings in both Washington and California. She has a background in providing full diagnostic and rehabilitative serives, including cochlear implants. Dr. DeCastro is a native of South Africa, daughter of an American mother and a British father. She holds a Master's degree from the University of Washington, and a Doctorate in Audiology from the University of Florida. She is a Fellow of the American Academy of Audiology licensed to practice in Washington and California.

She takes great pride and satisfaction in helping people experience renewed connections with family, friends and the community. Jennifer has strong ties to the Bay Area and Stanford University where her son graduated and daughter is currently attending. She enjoys football, travel, hiking, gardening, and board games in her spare time.


Clinic reviews

Read 13 verified patient reviews for HearWell Audiology! Their average review score is 4.92 () from 13 reviews.

Write a review

“It was very comfortable and they are knowledgeable.”

of Santa Clara, CA   
Review verified by phone
5 out of 5 1.

“He was detailed and professional.”

of San Jose, CA   
Review verified by phone
5 out of 5 1.

“Jennifer DeCastro and the people at Los Gatos Hearwell Audiology are wonderful. they are concerned about by welfare and worked to get the right hearing aides for me. Even though the hearing aides are expensive, they suggested contacting my homeowner's insurance, and sure enough the homeowner's helped with the cost. They also found a credit for me in my account that helped with the cost. I am very pleased that I can hear so well. Thank you Hearwell audiology.”

of Morgan Hill, CA   
Review submitted online
5 out of 5 1.

“They were very easygoing and well-spoken. Didn't make it stressful and got all the testing done. Made it a wonderful experience”

of Santa Clara, CA   
Review verified by phone
5 out of 5 1.

“They seemed to explain things very well.”

of San Jose, CA   
Review verified by phone
4 out of 5 1.

More Reviews

More information

About this clinic

At HearWell Audiology, you’ll be cared for by our experienced audiologists and trained staff. With thorough hearing evaluations and advanced solutions, we’re qualified to diagnose and treat your hearing loss. We provide the latest in digital hearing aid technology and even offer free product demonstrations.

Sonoma Valley Hearing Center is one of three convenient locations of HearWell Audiology, which is the full-service audiology and hearing aid service practice of husband and wife audiologist partners Dr. John Miles and Dr. Janet Snyder Miles. They have built a highly-skilled and dedicated team of hearing care experts to help the people of California hear better. Their decades of experience and passion for helping others means you'll be given the best care possible.

Call today to get started on improving your quality of life through better hearing!

HearWell Audiology
14911 National Avenue Suite #2
Los Gatos, CA 95032

Hall Hearing Aid Center
465 Saratoga Avenue
San Jose, CA 95129

Sonoma Valley Hearing Center
511 Third Street West
Sonoma, CA 95476

Patient Testimonials

"I have been a patient of Dr. John Miles at HearWell Audiology for almost a year. From the beginning I found his facility clean, his staff helpful and professional, and everyone seems to enjoy working at HearWell. My hearing has been terrible since I left the military in 1973. I was told there was no technology to help noise induced hearing loss and the best I could to do was take a class in lip reading.

After Dr. Miles put me through a series of tests he gave me a number of options regarding hearing aids. I was very excited get my first pair. From that day I have been amazed at what I can hear. I never heard my flip flops slap my heel as I walked! Dr. Miles has been very attentive to my questions and always has answers that I can understand. It is great to find a business that does what they say and say what they mean."  - Rick 

"What a pleasure it is to converse with others now without straining to hear especially at mealtime! Thanks for your kind service."  - Marcy

"I feel like I am lost without my aids. They have helped me keep functioning in my daily activities. I appreciate the service that I get, and like that I can be seen by my audiologist when I need it. She helps me keep my aids working well. I’ve been seeing her for over 20 years and I wouldn’t go anywhere else. She is the best!"  - George

Clinic services

Services we provide:

  • Complete diagnostic evaluations
  • Speech threshold and discrimination testing
  • Pediatric hearing evaluations
  • Hearing aid evaluation and dispensing
  • Computerized hearing aid fittings to ensure proper amplification
  • Loaner hearing aids
  • Hearing aid adjustment and servicing
  • Custom earmolds for hearing aids
  • Earplugs for swimming and hearing protection
  • Musician Plugs

Manufacturers we use:

  • Oticon
  • Starkey
  • ReSound
  • Siemens
  • Phonak

Insurances we accept:

  • SCCIPA (Santa Clara IPA)
  • Blue Shield
  • MDI Network
  • United Health Care
  • Medicare
  • Valley Health

Free Trial Program:

If your hearing examination indicates that you are a candidate for hearing devices, our office will let you try them free for two weeks. We do this because we're confident that you will benefit from hearing devices and you will be able see how they affect your daily life. Whether you’re at home, at work, or on the go, you can find out if hearing devices are right for you and your lifestyle.

Call this clinic today!

(408) 335-6178

Hours of operation

Sunday Closed
Monday 9:00 am - 5:00 pm
By appt.
Tuesday 9:00 am - 5:00 pm
By appt.
Wednesday 9:00 am - 5:00 pm
By appt.
Thursday 9:00 am - 5:00 pm
By appt.
Friday 9:00 am - 12:30 pm
By appt.
Saturday Closed

Accepted forms of payment

  • Visa
  • MasterCard
  • American Express
  • Discover
  • Cash
  • Check
  • Debit
  • Financing available for those who qualify
  • Insurance accepted, please call for details