Kim Zeller Hoppin, AuD, FAAA

Director of Audiology

Kim Zeller Hoppin, Au.D., FAAA, believes that improving individuals’ hearing leads to significant enhancement of their communication abilities and their quality of life. Dr. Hoppin has been an audiologist since 1990. Her extensive knowledge in audiology and related business and technology comes from experience in diverse settings, including UCSF Medical Center, private practice, research institutions, and hearing aid manufacturing companies. The field of audiology attracted Dr. Hoppin because of its intriguing mixture of art and science. She enjoys the creativity of listening to the needs of individuals with hearing difficulties and addressing them with the flexibility of the latest technology available. Dr. Hoppin earned her Bachelor of Science degree in Communication Disorders from the University of Wisconsin, her Master’s degree in Audiology from Northwestern University, and her Doctor of Audiology degree from the University of Florida. After growing up on the North Shore of Chicago, Dr. Hoppin moved to the Bay Area in 1991. She enjoys spending time with her two young sons, as well as keeping healthy with power yoga workouts.

Janelle Spear


Janelle Spear has over 30 years of experience practicing in the Bay Area.  Since Dr. Spear’s initial training at UCSF, she has worked in both clinical and private practice settings, and has experience with manufacturer training and research.  Her areas of special interest are in adult rehabilitation and tinnitus, and she is certified by the Tinnitus Practioners Association. She enjoys helping adults reduce the “stress” of listening by combining high-tech solutions with interpersonal communication strategies. She earned her Master’s degree from UC Santa Barbara, and her AuD from AT Still University.  Outside of work she is an avid mountain biker, and enjoys hiking with her husband, two teenage sons, and adopted labrador.

Robin Casper

Practice Manager

Robin Casper joined Marin Hearing Center in February of 2016 as our Practice Manager.  She brings over nine years of audiology office management experience to our practice.  She believes in the importance of quality patient care and getting to know everyone who walks through our door.  Robin has a degree in Clinical Psychology from San Francisco State University and has always had a passion for helping people.  She was born and raised in the Bay Area and now lives in San Rafael with her husband and teenage daughter.  When she isn’t at work, Robin is spending quality time with her family and friends.  She loves going to the movies and tries to see a show as often as she can!  Robin also is part owner of a brewery in Richmond, California, where she attends events and has entered local, state, and national competitions.

What is an audiologist?

Audiologists are professionals with Master’s or Doctoral degrees who are trained in hearing disorders and the non-medical treatment of hearing loss. Testing, consultation, and hearing aid fitting at Marin Hearing Center are performed by Doctors of Audiology (AuDs). We are licensed by the State of California as Dispensing Audiologists and are Fellows of the American Academy of Audiology, our national professional organization. We have state-of-the-art testing equipment and experience with the latest technology in hearing aids from a variety of manufacturers in order to meet the specific needs of our patients. We also have experience in hearing disorders, including tinnitus, noise-induced hearing loss, age-related hearing loss, hereditary hearing loss, and hearing loss due to medical or surgical conditions. In addition, we treat our patients holistically by providing research-based auditory rehabilitation to move our patients beyond amplification devices to better listening and communication.